Pub Date : 2023-01-01DOI: 10.1177/15589250231180248
E. Taştan Özkan, B. Kaplangiray, U. Sekir, Ş. Şahin
Garments should not overload the body during activity and should be chosen in accordance with the ambient conditions. Especially in active sports, sportswear should make a person feel comfortable and increase performance by easily removing excess heat and moisture from the body without interrupting physical activity. In this study, five T-shirts with the same size and weight characteristics, but in different yarn types were produced and analysed. The thermal and water vapour resistance properties of these garments were measured using a thermal manikin system. In addition, thermal camera images were taken at 10-minute intervals during the 50-minute wear trial programme, and skin temperatures were measured from the upper front body and the upper back body with two sensors. The results showed that POS and PM-coded garments made of polyester with low clothing insulation (clo) values were statistically different from CS and CPS coded cotton-containing garments in terms of front and back surface thermal camera images. It was observed that cotton-containing garments were more uncomfortable than polyester and Tencel owing to their higher thermal resistance, garment surface temperature, and skin temperature values. The Tencel garment was measured similarly to the CS and CPS coded garments at the beginning of the activity and measured similarly to the POS and PM coded garments at the end of the activity on both surfaces.
{"title":"Investigation of the thermal comfort of the sportswear by standing thermal manikin and thermal imaging techniques","authors":"E. Taştan Özkan, B. Kaplangiray, U. Sekir, Ş. Şahin","doi":"10.1177/15589250231180248","DOIUrl":"https://doi.org/10.1177/15589250231180248","url":null,"abstract":"Garments should not overload the body during activity and should be chosen in accordance with the ambient conditions. Especially in active sports, sportswear should make a person feel comfortable and increase performance by easily removing excess heat and moisture from the body without interrupting physical activity. In this study, five T-shirts with the same size and weight characteristics, but in different yarn types were produced and analysed. The thermal and water vapour resistance properties of these garments were measured using a thermal manikin system. In addition, thermal camera images were taken at 10-minute intervals during the 50-minute wear trial programme, and skin temperatures were measured from the upper front body and the upper back body with two sensors. The results showed that POS and PM-coded garments made of polyester with low clothing insulation (clo) values were statistically different from CS and CPS coded cotton-containing garments in terms of front and back surface thermal camera images. It was observed that cotton-containing garments were more uncomfortable than polyester and Tencel owing to their higher thermal resistance, garment surface temperature, and skin temperature values. The Tencel garment was measured similarly to the CS and CPS coded garments at the beginning of the activity and measured similarly to the POS and PM coded garments at the end of the activity on both surfaces.","PeriodicalId":15718,"journal":{"name":"Journal of Engineered Fibers and Fabrics","volume":" ","pages":""},"PeriodicalIF":2.9,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47410157","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-01-01DOI: 10.1177/15589250231203381
Jan Lukas Storck, Liska Steenbock, Marius Dotter, Herbert Funke, Andrea Ehrmann
A first limited approach for the automated production of crocheted fabrics was introduced in 2019. However, the knowledge on crocheted fabrics is very scarce and only few technical applications are presented in the literature. To provide a basis for possible future technical applications, the general tensile properties of crocheted fabrics are explored, and a promising application as composite reinforcement is introduced. Due to the early development state of the crochet machine prototype, conventionally hand-made crocheted fabrics are studied and the benefit of improving the machine is evaluated. The mechanical properties of crocheted fabrics depend significantly on the individual crocheter, but fabrics produced from the same person are sufficiently reproducible for reasonable investigations. Anisotropic properties with a trend toward higher resisted forces in course compared to wale direction were identified with crochets constructed from single crochet (sc) and from half double crochet (hdc) stitches. Furthermore, a tendency toward higher possible loads at larger elongations was revealed for crocheted fabrics compared to knitted ones. To the best of our knowledge, for the first time crocheted aramid fabrics were used in epoxy composites. With a crocheted reinforcement in a non-cut composite produced by vacuum-assisted hand lay-up, significantly higher ultimate tensile strength and Young’s modulus were recorded compared to a knitted one with comparable fracture modes.
{"title":"Principle capabilities of crocheted fabrics for composite materials","authors":"Jan Lukas Storck, Liska Steenbock, Marius Dotter, Herbert Funke, Andrea Ehrmann","doi":"10.1177/15589250231203381","DOIUrl":"https://doi.org/10.1177/15589250231203381","url":null,"abstract":"A first limited approach for the automated production of crocheted fabrics was introduced in 2019. However, the knowledge on crocheted fabrics is very scarce and only few technical applications are presented in the literature. To provide a basis for possible future technical applications, the general tensile properties of crocheted fabrics are explored, and a promising application as composite reinforcement is introduced. Due to the early development state of the crochet machine prototype, conventionally hand-made crocheted fabrics are studied and the benefit of improving the machine is evaluated. The mechanical properties of crocheted fabrics depend significantly on the individual crocheter, but fabrics produced from the same person are sufficiently reproducible for reasonable investigations. Anisotropic properties with a trend toward higher resisted forces in course compared to wale direction were identified with crochets constructed from single crochet (sc) and from half double crochet (hdc) stitches. Furthermore, a tendency toward higher possible loads at larger elongations was revealed for crocheted fabrics compared to knitted ones. To the best of our knowledge, for the first time crocheted aramid fabrics were used in epoxy composites. With a crocheted reinforcement in a non-cut composite produced by vacuum-assisted hand lay-up, significantly higher ultimate tensile strength and Young’s modulus were recorded compared to a knitted one with comparable fracture modes.","PeriodicalId":15718,"journal":{"name":"Journal of Engineered Fibers and Fabrics","volume":"5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135006992","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-01-01DOI: 10.1177/15589250231200612
YuJie Wang, YaQin Chen, Jun Wang, Shahid Iqbal
In recent years, the exceptional performance of steel fiber-reinforced concrete in blast and impact resistance has garnered widespread recognition, sparking considerable interest in its practical application in small box girders. To this end, nine groups of Trinitrotoluene (TNT) explosion simulation experiments were designed with the equivalent magnitudes matching those of actual automobile explosions to evaluate the anti-explosion and anti-penetration capabilities of steel fiber-reinforced concrete and ordinary concrete using the Arbitrary Lagrangian-Eulerian (ALE) method and the Smoothed Particle Hydrodynamics-ALE method. The aim was to explore the application prospects of steel fiber-reinforced concrete in small box girders. The research results demonstrate that with increasing TNT equivalent, the leading cause of breach to concrete slabs changes from spalling to cratering. The penetration resistance of steel fiber-reinforced concrete slabs is superior to its blast resistance. However, when the explosive force is larger than the sedan, the anti-explosion effect of steel fiber-reinforced concrete slabs becomes negligible. Moreover, under typical automobile explosion loads, the addition of 2% steel fibers can reduce spalling by up to 23% and cratering by up to 13% and can decrease the area of penetration damage by up to 47%. In designing blast-resistant structures, steel fiber-reinforced concrete is not recommended to enhance the blast resistance of bridges when the TNT equivalent exceeds 500 kg.
{"title":"Application of steel fiber concrete in small box girder under vehicle explosion load","authors":"YuJie Wang, YaQin Chen, Jun Wang, Shahid Iqbal","doi":"10.1177/15589250231200612","DOIUrl":"https://doi.org/10.1177/15589250231200612","url":null,"abstract":"In recent years, the exceptional performance of steel fiber-reinforced concrete in blast and impact resistance has garnered widespread recognition, sparking considerable interest in its practical application in small box girders. To this end, nine groups of Trinitrotoluene (TNT) explosion simulation experiments were designed with the equivalent magnitudes matching those of actual automobile explosions to evaluate the anti-explosion and anti-penetration capabilities of steel fiber-reinforced concrete and ordinary concrete using the Arbitrary Lagrangian-Eulerian (ALE) method and the Smoothed Particle Hydrodynamics-ALE method. The aim was to explore the application prospects of steel fiber-reinforced concrete in small box girders. The research results demonstrate that with increasing TNT equivalent, the leading cause of breach to concrete slabs changes from spalling to cratering. The penetration resistance of steel fiber-reinforced concrete slabs is superior to its blast resistance. However, when the explosive force is larger than the sedan, the anti-explosion effect of steel fiber-reinforced concrete slabs becomes negligible. Moreover, under typical automobile explosion loads, the addition of 2% steel fibers can reduce spalling by up to 23% and cratering by up to 13% and can decrease the area of penetration damage by up to 47%. In designing blast-resistant structures, steel fiber-reinforced concrete is not recommended to enhance the blast resistance of bridges when the TNT equivalent exceeds 500 kg.","PeriodicalId":15718,"journal":{"name":"Journal of Engineered Fibers and Fabrics","volume":"280 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135749681","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-01-01DOI: 10.1177/15589250231198514
Vivek Kumar Dhimole, Humayun Kabir, Chongdu Cho
The present research signifies a new modeling method for calculating the stiffness of braided composites. In previous works, the modeling approach has been related to repetitive unit cells for analysis of braided composites based on a single area or a few added areas. Also, no confirmed modeling method has recently been available for braided composites because of different fibers’ configuration considerations. Therefore, there is no preferred one, and fiber bundle arrangements are complex in practicality; it is unclear whether their shape is straight or curved. Also, the previously proposed mesoscale repetitive unit cell models have many elements and nodes in the finite element analysis phase, so applying periodic boundary and mesh conditions can mislead the results when they are used. So current research proposes a multi-cell multi-domain strategy and verifies it for modeling and computation of mechanical properties while showing the significance of braiding path and manufacturing process. The currently proposed method is tested with selected sections’ configuration and shown for actual braided composites’ scenario. So, according to the literature, the section is modeled as a complex shape with a squeezing effect. Then, that model is analyzed, and calculated properties are verified by the existing methods and found results with a maximum and minimum difference of 2.7% and 0.25%, respectively. Afterward, it is divided into cells, which are then analyzed and checked to determine which number of simplistic division stages can represent a section. It is found that a minimum of 15 divisions can be defined with a maximum 2% difference, and over that has approximately the same results as of the current considered section model. Additionally, the study examines how the elastic constants of 2D braided composites are influenced by the braiding angle and fiber volume fractions.
{"title":"A new modeling method to predict the mechanical properties of braided composites","authors":"Vivek Kumar Dhimole, Humayun Kabir, Chongdu Cho","doi":"10.1177/15589250231198514","DOIUrl":"https://doi.org/10.1177/15589250231198514","url":null,"abstract":"The present research signifies a new modeling method for calculating the stiffness of braided composites. In previous works, the modeling approach has been related to repetitive unit cells for analysis of braided composites based on a single area or a few added areas. Also, no confirmed modeling method has recently been available for braided composites because of different fibers’ configuration considerations. Therefore, there is no preferred one, and fiber bundle arrangements are complex in practicality; it is unclear whether their shape is straight or curved. Also, the previously proposed mesoscale repetitive unit cell models have many elements and nodes in the finite element analysis phase, so applying periodic boundary and mesh conditions can mislead the results when they are used. So current research proposes a multi-cell multi-domain strategy and verifies it for modeling and computation of mechanical properties while showing the significance of braiding path and manufacturing process. The currently proposed method is tested with selected sections’ configuration and shown for actual braided composites’ scenario. So, according to the literature, the section is modeled as a complex shape with a squeezing effect. Then, that model is analyzed, and calculated properties are verified by the existing methods and found results with a maximum and minimum difference of 2.7% and 0.25%, respectively. Afterward, it is divided into cells, which are then analyzed and checked to determine which number of simplistic division stages can represent a section. It is found that a minimum of 15 divisions can be defined with a maximum 2% difference, and over that has approximately the same results as of the current considered section model. Additionally, the study examines how the elastic constants of 2D braided composites are influenced by the braiding angle and fiber volume fractions.","PeriodicalId":15718,"journal":{"name":"Journal of Engineered Fibers and Fabrics","volume":"32 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136306799","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-01-01DOI: 10.1177/15589250221137897
Lili Jiang, A. Zulifqar, A. Hai, F. Anwar, Hong Hu, Fengwei Liu, Haizhen Chen
Stretch woven fabrics are known for their elastic and recovery properties. To date, they found many interesting applications from simple jeans to complex fabric structures with functional properties for example bi-stretch auxetic woven fabrics, compressions garments and stretchable textile carriers for healthcare applications. Many studies have been carried out on the physical, mechanical and comfort properties of stretchable knitted and woven fabrics. However, to identify combination of yarns with different stretch properties and other design parameters required to meet multiple objectives in the production and usage of bi-stretch woven fabrics is an area that has been taken up by fabric scientists recently. This study compared the effect of using elastic yarns and alternate elastic and non-elastic yarns in warp on the properties of bi-stretch woven fabrics while using elastic yarns in weft direction. It was found that shrinkage of the fabrics made of elastic yarns was higher along the warp direction as compared to that in weft direction due to shrinkage balancing effect; however, in case of fabrics made of alternate elastic and non-elastic yarns in warp the shrinkage behavior was exact opposite. The comparison of shrinkage for different weave patterns revealed that satin had the highest shrinkage followed by twill and plain, due to least number of interlacements in satin among these three patterns.
{"title":"Effect of using alternate elastic and non-elastic yarns in warp on shrinkage and stretch behavior of bi-stretch woven fabrics","authors":"Lili Jiang, A. Zulifqar, A. Hai, F. Anwar, Hong Hu, Fengwei Liu, Haizhen Chen","doi":"10.1177/15589250221137897","DOIUrl":"https://doi.org/10.1177/15589250221137897","url":null,"abstract":"Stretch woven fabrics are known for their elastic and recovery properties. To date, they found many interesting applications from simple jeans to complex fabric structures with functional properties for example bi-stretch auxetic woven fabrics, compressions garments and stretchable textile carriers for healthcare applications. Many studies have been carried out on the physical, mechanical and comfort properties of stretchable knitted and woven fabrics. However, to identify combination of yarns with different stretch properties and other design parameters required to meet multiple objectives in the production and usage of bi-stretch woven fabrics is an area that has been taken up by fabric scientists recently. This study compared the effect of using elastic yarns and alternate elastic and non-elastic yarns in warp on the properties of bi-stretch woven fabrics while using elastic yarns in weft direction. It was found that shrinkage of the fabrics made of elastic yarns was higher along the warp direction as compared to that in weft direction due to shrinkage balancing effect; however, in case of fabrics made of alternate elastic and non-elastic yarns in warp the shrinkage behavior was exact opposite. The comparison of shrinkage for different weave patterns revealed that satin had the highest shrinkage followed by twill and plain, due to least number of interlacements in satin among these three patterns.","PeriodicalId":15718,"journal":{"name":"Journal of Engineered Fibers and Fabrics","volume":" ","pages":""},"PeriodicalIF":2.9,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46021819","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-01-01DOI: 10.1177/15589250231180293
Usman Ahmed, T. Hussain, S. Abid
All the surgical bandages, extracorporeal devices, and prosthetic implants that we use today are the product of textiles. Because they conform well to the body and feel good against the skin. Woven, non-woven, and knitted are only textile fabric construction methods. Among all, the knitted structures are more breathable and simpler to produce. In the previous two decades, knitting technology has advanced, now it is simple to create customized flexible and cost-effective biomedical devices. Knitted structures are increasingly used in implantable textiles like hernia and heart patches etc. due to their comfort, optimal strength, and ability to ravel from the last loop. The porous structure of knitted fabrics is particularly well suited for the transport of drugs. Since the knitted pattern, yarn effect, and dimensional parameters of fabric are all displayed in the 3D simulation software like Apex-lll and M-1, there is no longer any need to use actual fabric for quality control purposes, which greatly aids in reducing fabric waste. This article offers recent research on knitted fabrics including their advantages, disadvantages and future solutions that could be achieved by using advanced knitting manufacturing technologies. In addition, it calls attention to the significance of knitted structure in biomedical applications which may motivate further research into materials of this kind in the future.
{"title":"Role of knitted techniques in recent developments of biomedical applications: A review","authors":"Usman Ahmed, T. Hussain, S. Abid","doi":"10.1177/15589250231180293","DOIUrl":"https://doi.org/10.1177/15589250231180293","url":null,"abstract":"All the surgical bandages, extracorporeal devices, and prosthetic implants that we use today are the product of textiles. Because they conform well to the body and feel good against the skin. Woven, non-woven, and knitted are only textile fabric construction methods. Among all, the knitted structures are more breathable and simpler to produce. In the previous two decades, knitting technology has advanced, now it is simple to create customized flexible and cost-effective biomedical devices. Knitted structures are increasingly used in implantable textiles like hernia and heart patches etc. due to their comfort, optimal strength, and ability to ravel from the last loop. The porous structure of knitted fabrics is particularly well suited for the transport of drugs. Since the knitted pattern, yarn effect, and dimensional parameters of fabric are all displayed in the 3D simulation software like Apex-lll and M-1, there is no longer any need to use actual fabric for quality control purposes, which greatly aids in reducing fabric waste. This article offers recent research on knitted fabrics including their advantages, disadvantages and future solutions that could be achieved by using advanced knitting manufacturing technologies. In addition, it calls attention to the significance of knitted structure in biomedical applications which may motivate further research into materials of this kind in the future.","PeriodicalId":15718,"journal":{"name":"Journal of Engineered Fibers and Fabrics","volume":" ","pages":""},"PeriodicalIF":2.9,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44365955","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-01-01DOI: 10.1177/15589250231161330
Ban Wang, Haozheng Li, Juyong Zhang
A Kevlar tether usually exhibits strong nonlinearity in engineering applications, bringing new challenges to the modeling of tether dynamics. The nonlinear mechanical behaviors, including creep behavior, nonlinear stiffness, hysteresis effect, and dynamical property of a Kevlar tether, are investigated through a series of experiments. The longitudinal loading experiment setup is established, from which the relationships between tether deformation, tension, and time can be obtained. The creep process of Kevlar tethers is divided into three stages, namely, linear creep stage, deceleration creep stage, and long-term creep stage. This paper studied the longitudinal nonlinear stiffness of a Kevlar tether, whose nonlinearity is fitted by the cubic function model. The hysteresis effect under single loading and unloading is fitted well by the Kawabata stress-strain model, which verifies the correctness and validity of Kawabata model. The nonlinear dynamical model, which includes the elastic force, hysteresis force, and damping force, is established to describe the general dynamical property of the Kevlar tether. The experiment results verify the correctness of the dynamical model form. To simplify the analysis, a simplified model is proposed to describe the dynamical property of the Kevlar tether, and the parameters have a good consistency. The works in this paper contribute to the accurate modeling of flexible tether and lay the foundation for the further research of tether dynamics and control.
{"title":"Experimental investigations on nonlinear mechanical behaviors of Kevlar tether","authors":"Ban Wang, Haozheng Li, Juyong Zhang","doi":"10.1177/15589250231161330","DOIUrl":"https://doi.org/10.1177/15589250231161330","url":null,"abstract":"A Kevlar tether usually exhibits strong nonlinearity in engineering applications, bringing new challenges to the modeling of tether dynamics. The nonlinear mechanical behaviors, including creep behavior, nonlinear stiffness, hysteresis effect, and dynamical property of a Kevlar tether, are investigated through a series of experiments. The longitudinal loading experiment setup is established, from which the relationships between tether deformation, tension, and time can be obtained. The creep process of Kevlar tethers is divided into three stages, namely, linear creep stage, deceleration creep stage, and long-term creep stage. This paper studied the longitudinal nonlinear stiffness of a Kevlar tether, whose nonlinearity is fitted by the cubic function model. The hysteresis effect under single loading and unloading is fitted well by the Kawabata stress-strain model, which verifies the correctness and validity of Kawabata model. The nonlinear dynamical model, which includes the elastic force, hysteresis force, and damping force, is established to describe the general dynamical property of the Kevlar tether. The experiment results verify the correctness of the dynamical model form. To simplify the analysis, a simplified model is proposed to describe the dynamical property of the Kevlar tether, and the parameters have a good consistency. The works in this paper contribute to the accurate modeling of flexible tether and lay the foundation for the further research of tether dynamics and control.","PeriodicalId":15718,"journal":{"name":"Journal of Engineered Fibers and Fabrics","volume":" ","pages":""},"PeriodicalIF":2.9,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49640916","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-01-01DOI: 10.1177/15589250231165990
Y. Kang, Sungmin Kim
In this study, the dynamic changes in human body shape according to movement have been analyzed using three-dimensional scanning system. For this, 12 male subjects were scanned in six postures and the amount of changes in 32 anthropometric measurement items were examined. As for the height items, all items changed in walking pose, and for the length items, the shoulder and chest lengths were affected by arm movement. For circumference items, considerable changes were observed in the chest and waist region according to the movement. A body cross section analysis software has been developed to analyze the change in body shape according to movement in various perspectives. As a result, the chest region was found to be affected by the movement of the arms, the waist region by the movement of the trunk, and hip region was by the movement of the leg.
{"title":"Analyzing the changes in anthropometric measurements with various postures using three-dimensional scanning technology","authors":"Y. Kang, Sungmin Kim","doi":"10.1177/15589250231165990","DOIUrl":"https://doi.org/10.1177/15589250231165990","url":null,"abstract":"In this study, the dynamic changes in human body shape according to movement have been analyzed using three-dimensional scanning system. For this, 12 male subjects were scanned in six postures and the amount of changes in 32 anthropometric measurement items were examined. As for the height items, all items changed in walking pose, and for the length items, the shoulder and chest lengths were affected by arm movement. For circumference items, considerable changes were observed in the chest and waist region according to the movement. A body cross section analysis software has been developed to analyze the change in body shape according to movement in various perspectives. As a result, the chest region was found to be affected by the movement of the arms, the waist region by the movement of the trunk, and hip region was by the movement of the leg.","PeriodicalId":15718,"journal":{"name":"Journal of Engineered Fibers and Fabrics","volume":" ","pages":""},"PeriodicalIF":2.9,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46559828","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-01-01DOI: 10.1177/15589250231189816
Daoling Chen, Pengpeng Cheng
In order to understand consumers’ cognition of clothing style and design clothing products more in line with people’s emotional needs, a garment style perceptual image prediction model based on PSO-BP neural network was constructed by taking professional dress as an example. Firstly, the professional dress samples were screened and the style design elements were deconstructed and coded. The Kansei engineering theory and factor analysis method were used to determine the representative adjectives, so as to reduce the cognitive dimension of the target users for the style characteristics and perceptual image of the dress. Then, using the sample style design element code as the input layer and the user’s perceptual image evaluation score as the output layer, the PSO-BP neural network’s perceptual image prediction model for professional dress styles is constructed. Finally, the sample data were input into the PSO-BP model, BP neural network and GA-BP model for simulation and calculation, and the error analysis of the results proved that the PSO-BP prediction model is effective and advanced. Designers can use this model to quickly transform customers’ perceptual needs with dress style design elements, so as to improve the scientificity of design decision-making and better meet customer needs.
{"title":"A perceptual image prediction model of professional dress style based on PSO-BP neural network","authors":"Daoling Chen, Pengpeng Cheng","doi":"10.1177/15589250231189816","DOIUrl":"https://doi.org/10.1177/15589250231189816","url":null,"abstract":"In order to understand consumers’ cognition of clothing style and design clothing products more in line with people’s emotional needs, a garment style perceptual image prediction model based on PSO-BP neural network was constructed by taking professional dress as an example. Firstly, the professional dress samples were screened and the style design elements were deconstructed and coded. The Kansei engineering theory and factor analysis method were used to determine the representative adjectives, so as to reduce the cognitive dimension of the target users for the style characteristics and perceptual image of the dress. Then, using the sample style design element code as the input layer and the user’s perceptual image evaluation score as the output layer, the PSO-BP neural network’s perceptual image prediction model for professional dress styles is constructed. Finally, the sample data were input into the PSO-BP model, BP neural network and GA-BP model for simulation and calculation, and the error analysis of the results proved that the PSO-BP prediction model is effective and advanced. Designers can use this model to quickly transform customers’ perceptual needs with dress style design elements, so as to improve the scientificity of design decision-making and better meet customer needs.","PeriodicalId":15718,"journal":{"name":"Journal of Engineered Fibers and Fabrics","volume":" ","pages":""},"PeriodicalIF":2.9,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42709746","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-01-01DOI: 10.1177/15589250231205184
Prisca Holderied, Marcus O. Weber, Marie-Ange Bueno
A new knitting process is presented based on a novel yarn feeding technique. It allows the knitting of new structures: single jersey on one or both needle beds and rib structure on both needle beds in the same knitting cycle, that is the same needles. The innovative knitted fabrics were compared to standard 1 × 1 rib and plain woven fabrics made from the same material. All samples were tested for physical (grammage, air permeability), morphological (number of stitches per centimetre in wale and course directions and number of stitches per square centimetre, cover factor) and mechanical (uniaxial and multidirectional tensile behaviour) properties. Grammage was used as a reference parameter to render the results comparable. The results show that the innovative fabrics are less stretchable than the standard knitted fabrics, especially in the course direction, therefore more rigid in this direction. Furthermore, they can be mechanically balanced in course and wale directions, which is unexpected for knitted fabrics. The innovative knitted fabrics are thicker than the standard knitted fabrics for the same grammage and have a lower number of stitches per square centimetre, enabling higher production rates. Due to their lower cover factor, the innovative fabrics are expected to be easier to impregnate by resin for composite applications than the standard knitted fabrics. Based on these results and the ability to increase knitting productivity, we conclude that that this novel process can transform future processes and open the door to new markets and applications.
{"title":"New weft knitting process: Morphological, physical and mechanical characterisation of the innovative knitted fabrics","authors":"Prisca Holderied, Marcus O. Weber, Marie-Ange Bueno","doi":"10.1177/15589250231205184","DOIUrl":"https://doi.org/10.1177/15589250231205184","url":null,"abstract":"A new knitting process is presented based on a novel yarn feeding technique. It allows the knitting of new structures: single jersey on one or both needle beds and rib structure on both needle beds in the same knitting cycle, that is the same needles. The innovative knitted fabrics were compared to standard 1 × 1 rib and plain woven fabrics made from the same material. All samples were tested for physical (grammage, air permeability), morphological (number of stitches per centimetre in wale and course directions and number of stitches per square centimetre, cover factor) and mechanical (uniaxial and multidirectional tensile behaviour) properties. Grammage was used as a reference parameter to render the results comparable. The results show that the innovative fabrics are less stretchable than the standard knitted fabrics, especially in the course direction, therefore more rigid in this direction. Furthermore, they can be mechanically balanced in course and wale directions, which is unexpected for knitted fabrics. The innovative knitted fabrics are thicker than the standard knitted fabrics for the same grammage and have a lower number of stitches per square centimetre, enabling higher production rates. Due to their lower cover factor, the innovative fabrics are expected to be easier to impregnate by resin for composite applications than the standard knitted fabrics. Based on these results and the ability to increase knitting productivity, we conclude that that this novel process can transform future processes and open the door to new markets and applications.","PeriodicalId":15718,"journal":{"name":"Journal of Engineered Fibers and Fabrics","volume":"2013 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135008489","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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