{"title":"Determination of the Coefficient of Thermal Expansion in a Non-Linear Elastic Rod of Two Concentric Layers","authors":"Victor Rizov","doi":"10.55549/epstem.1403000","DOIUrl":"https://doi.org/10.55549/epstem.1403000","url":null,"abstract":"<jats:p />","PeriodicalId":22384,"journal":{"name":"The Eurasia Proceedings of Science Technology Engineering and Mathematics","volume":"21 3","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-12-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139158868","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Topology being somehow very recent in nature but has got tremendous applications over almost all other fields. Theoretical or fundamental topology is a bit dry but the application part is what drives crazy once we get used. Topology has applications in various fields of Science and Technology, like applications to Biology, Robotics, GIS, Engineering, Computer Sciences. Topology though being a part of mathematics but it has influenced the whole world with so strong effects and incredible applications. The concept of continuity is fundamental in large parts of contemporary mathematics. In the nineteenth century, precise definitions of continuity were formulated for functions of a real or complex variable, enabling mathematicians to produce rigorous proofs of fundamental theorems of real and complex analysis, such as the Intermediate Value Theorem, Taylor’s Theorem, the Fundamental Theorem of Calculus, and Cauchy’s Theorem. In the early years of the Twentieth Century, the concept of continuity was generalized so as to be applicable to functions between metric spaces, and subsequently to functions between topological spaces. Topology is an area of mathematics concerned with the properties of space that are preserved under continuous deformations including stretching and bending but not tearing. In 2023, Dr. T. Delcia and M. S, Thillai introduced a new type of closed sets called g**β-closed sets and investigated their basic properties including their relationship with already existing concepts in Topological Spaces. In this paper, we introduce g**β-continuous function, g**β-irresolute function, g**β-open function, g**β-closed function, pre-g**β-open function, and pre-g**β-closed function, and investigate properties and characterizations of these new types of mappings in topological spaces.
拓扑学是一门新兴学科，但在几乎所有其他领域都有广泛的应用。拓扑学的理论或基础知识有点枯燥，但应用部分却让我们一学就会。拓扑学在科学技术的各个领域都有应用，如生物、机器人、地理信息系统、工程、计算机科学等。拓扑学虽然是数学的一部分，但它已经影响了整个世界，并产生了巨大的影响和令人难以置信的应用。连续性概念在当代数学中占有重要地位。19 世纪，人们为实变或复变函数提出了精确的连续性定义，使数学家们能够对实变和复变分析的基本定理进行严格的证明，如中间值定理、泰勒定理、微积分基本定理和柯西定理。二十世纪初，连续性的概念得到了推广，从而适用于度量空间之间的函数，随后又适用于拓扑空间之间的函数。拓扑学是数学的一个领域，涉及空间在连续变形（包括拉伸和弯曲，但不包括撕裂）情况下所保留的性质。2023 年，T. Delcia 博士和 M. S. Thillai 提出了一种新的闭集类型，称为 g**β 闭集，并研究了它们的基本性质，包括它们与拓扑空间中已有概念的关系。本文介绍了 g**β-continuous 函数、g**β-irresolute 函数、g**β-open 函数、g**β-closed 函数、pre-g**β-open 函数和 pre-g**β-closed 函数，并研究了拓扑空间中这些新型映射的性质和特征。
{"title":"G**β-Continuous and G**β-Irresolute Mappings in Topological Spaces","authors":"Raja Mohammad Latif","doi":"10.55549/epstem.1404691","DOIUrl":"https://doi.org/10.55549/epstem.1404691","url":null,"abstract":"Topology being somehow very recent in nature but has got tremendous applications over almost all other fields. Theoretical or fundamental topology is a bit dry but the application part is what drives crazy once we get used. Topology has applications in various fields of Science and Technology, like applications to Biology, Robotics, GIS, Engineering, Computer Sciences. Topology though being a part of mathematics but it has influenced the whole world with so strong effects and incredible applications. The concept of continuity is fundamental in large parts of contemporary mathematics. In the nineteenth century, precise definitions of continuity were formulated for functions of a real or complex variable, enabling mathematicians to produce rigorous proofs of fundamental theorems of real and complex analysis, such as the Intermediate Value Theorem, Taylor’s Theorem, the Fundamental Theorem of Calculus, and Cauchy’s Theorem. In the early years of the Twentieth Century, the concept of continuity was generalized so as to be applicable to functions between metric spaces, and subsequently to functions between topological spaces. Topology is an area of mathematics concerned with the properties of space that are preserved under continuous deformations including stretching and bending but not tearing. In 2023, Dr. T. Delcia and M. S, Thillai introduced a new type of closed sets called g**β-closed sets and investigated their basic properties including their relationship with already existing concepts in Topological Spaces. In this paper, we introduce g**β-continuous function, g**β-irresolute function, g**β-open function, g**β-closed function, pre-g**β-open function, and pre-g**β-closed function, and investigate properties and characterizations of these new types of mappings in topological spaces.","PeriodicalId":22384,"journal":{"name":"The Eurasia Proceedings of Science Technology Engineering and Mathematics","volume":"40 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-12-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139159061","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
N. Kichou, N. Guechtouli, Manel Taferghennit, Zakia Hank
Complexes Nickel constitute a very widespread axis in coordination chemistry and in medicine, because of their application as well as their activity. The Ni(III) species which aroused the interest of many biochemists, the three last decades, was identified to be the active entity of many enzymes, in particular, in hydrogenases. It is also mentioned for its powerful catalytic properties in biological and chemical processes. The Ni(IV) species, for its part, is known for its marked oxidizing capacities. In this work, we were interested in the theoretical study of Two complexes of dimethylglyoximato-nickel , using the DFT method, with the functional B3LYP function and LANL2DZ basis set, using Gaussian 03 program package. The experimental results, IR, 1H NMR and electronic spectra (UV) were compared to those obtained theoretically using. The energetic, structural and electronic parameters were determined for ligand and each studied complexes. Bending energies were also theoretically evaluated for each complexes.
{"title":"Computational Evaluation on Molecular Stability and Reactivity of Some Dimethylglyoximato-Nickel Complexes from DFT","authors":"N. Kichou, N. Guechtouli, Manel Taferghennit, Zakia Hank","doi":"10.55549/epstem.1404331","DOIUrl":"https://doi.org/10.55549/epstem.1404331","url":null,"abstract":"Complexes Nickel constitute a very widespread axis in coordination chemistry and in medicine, because of their application as well as their activity. The Ni(III) species which aroused the interest of many biochemists, the three last decades, was identified to be the active entity of many enzymes, in particular, in hydrogenases. It is also mentioned for its powerful catalytic properties in biological and chemical processes. The Ni(IV) species, for its part, is known for its marked oxidizing capacities. In this work, we were interested in the theoretical study of Two complexes of dimethylglyoximato-nickel , using the DFT method, with the functional B3LYP function and LANL2DZ basis set, using Gaussian 03 program package. The experimental results, IR, 1H NMR and electronic spectra (UV) were compared to those obtained theoretically using. The energetic, structural and electronic parameters were determined for ligand and each studied complexes. Bending energies were also theoretically evaluated for each complexes.","PeriodicalId":22384,"journal":{"name":"The Eurasia Proceedings of Science Technology Engineering and Mathematics","volume":"18 2","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-12-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139157592","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
A. Vassiliev, Htut Shine, Ye Min Htet, Viktoriia Alexeevna Karpenko
Embedded intelligent control systems (EICS) have been used in a wide range of tasks involving the adaptive control of technical objects and processes. For the hardware implementation of EICS, developers actively use function-oriented microcontrollers, that aimed to be the effective implementation of control algorithms, including adaptive and intelligent control. Embedded control systems based on the concept of fuzzy set theory have recently been developed for specific individual control operations, allowing more efficient implementation of complex object control algorithms. This paper approaches the study of the different implementation of control algorithms in embedded microcontrollers based on fuzzy sets theory to result in reduced hardware area and complexity, high operating speed, and adaptability to various applicable domains. It shows that the performance of fuzzy computing specialized in embedded systems has significantly increased and makes possible a huge scope for further improvement of the implementation of fuzzy control algorithms at the hardware level.
{"title":"User-Selected Sets of Algorithmic Implementation of Fuzzy Processing Subsystem for Embedded Intelligent Control Systems","authors":"A. Vassiliev, Htut Shine, Ye Min Htet, Viktoriia Alexeevna Karpenko","doi":"10.55549/epstem.1406787","DOIUrl":"https://doi.org/10.55549/epstem.1406787","url":null,"abstract":"Embedded intelligent control systems (EICS) have been used in a wide range of tasks involving the adaptive control of technical objects and processes. For the hardware implementation of EICS, developers actively use function-oriented microcontrollers, that aimed to be the effective implementation of control algorithms, including adaptive and intelligent control. Embedded control systems based on the concept of fuzzy set theory have recently been developed for specific individual control operations, allowing more efficient implementation of complex object control algorithms. This paper approaches the study of the different implementation of control algorithms in embedded microcontrollers based on fuzzy sets theory to result in reduced hardware area and complexity, high operating speed, and adaptability to various applicable domains. It shows that the performance of fuzzy computing specialized in embedded systems has significantly increased and makes possible a huge scope for further improvement of the implementation of fuzzy control algorithms at the hardware level.","PeriodicalId":22384,"journal":{"name":"The Eurasia Proceedings of Science Technology Engineering and Mathematics","volume":"16 6","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-12-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139157642","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Sadaf Adhami, Yagmur Dumlu, Deniz Hur, Gokhan Kilic, Evrim Hur
This research, conductive polymer supported modified electrode system which was prepared for usage in direct methanol fuel cells. To test the behavior of these electrode system for methanol oxidation, cyclic voltammetry (CV), chronoamperometry (CHR) and electrochemical impedance spectroscopy (EIS) methods were used as electrochemical methods. As the working electrode, pencil graphite electrode (PGE) was preferred because of its porous structure, good ion conductivity, practicality in application and ease of preparation and obtaining. Thiophene derivative 4,4')-2,2'-(diazen-1,2 diylbis(4,1 phenylene))bis(4 (thiophene-2-ylmethylene) oxazol-5(4H)-one), (DiAzBiPhBiTyOx) monomer was prepared and electrochemically polymerized by CV method in 0.01M TBAP and 0.05 HClO4 containing ACN solution on the surfaces of PGE. The spectroscopic characterization of the synthesized monomer was performed by NMR spectroscopy. Optimum polymerization conditions of monomer was determined according to scanning rate, potential range and acid density. The obtained modified electrode system (PGE/PDiAzBiPhBiTyOx) was doped with chloroplatinic acid hexahydrat-Pt2Cl6.6H2O (Pt) at different densities and the optimum catalyst density was determined as 3.25mM (PGE/3.25mMPt@PDiAzBiPhBiTyOx). The methanol oxidation performances of conductive polymer film, platinum and conductive polymer supported platinum catalyst systems were investigated separately. While the methanol oxidation responses of the conductive polymer film and platinum are almost similar, the methanol oxidation response of the platinum doped conductive polymer film catalyst system is higher. The modified electrode characterization was performed by CV, CHR and EIS methods. Furtheremore obtained modified electrode systems were characterized by FESEM/EDS, XRD to confirm the structures and morphologies. Also, the theoretical values such as electrochemical surface area (ECSA) and specific capacitance (Cs) were calculated in aqueous acidic solution with and without methanol. Cs values of the PGE/3.25mMPt@PDiAzBiPhBiTyOx electrode in aqueous acidic solution with and without methanol were 3.861 and 3x10-4Fg-1 respectively. Also, the electrochemical surface area values of the same electrode in aqueous acidic solution with and without methanol were 196.437 and 21.150m2g-1 respectively.
{"title":"Electrochemical Polymerization of a Novel Thiophene-Derived Monomer and Its Use as Support Material for Methanol Oxidation","authors":"Sadaf Adhami, Yagmur Dumlu, Deniz Hur, Gokhan Kilic, Evrim Hur","doi":"10.55549/epstem.1404280","DOIUrl":"https://doi.org/10.55549/epstem.1404280","url":null,"abstract":"This research, conductive polymer supported modified electrode system which was prepared for usage in direct methanol fuel cells. To test the behavior of these electrode system for methanol oxidation, cyclic voltammetry (CV), chronoamperometry (CHR) and electrochemical impedance spectroscopy (EIS) methods were used as electrochemical methods. As the working electrode, pencil graphite electrode (PGE) was preferred because of its porous structure, good ion conductivity, practicality in application and ease of preparation and obtaining. Thiophene derivative 4,4')-2,2'-(diazen-1,2 diylbis(4,1 phenylene))bis(4 (thiophene-2-ylmethylene) oxazol-5(4H)-one), (DiAzBiPhBiTyOx) monomer was prepared and electrochemically polymerized by CV method in 0.01M TBAP and 0.05 HClO4 containing ACN solution on the surfaces of PGE. The spectroscopic characterization of the synthesized monomer was performed by NMR spectroscopy. Optimum polymerization conditions of monomer was determined according to scanning rate, potential range and acid density. The obtained modified electrode system (PGE/PDiAzBiPhBiTyOx) was doped with chloroplatinic acid hexahydrat-Pt2Cl6.6H2O (Pt) at different densities and the optimum catalyst density was determined as 3.25mM (PGE/3.25mMPt@PDiAzBiPhBiTyOx). The methanol oxidation performances of conductive polymer film, platinum and conductive polymer supported platinum catalyst systems were investigated separately. While the methanol oxidation responses of the conductive polymer film and platinum are almost similar, the methanol oxidation response of the platinum doped conductive polymer film catalyst system is higher. The modified electrode characterization was performed by CV, CHR and EIS methods. Furtheremore obtained modified electrode systems were characterized by FESEM/EDS, XRD to confirm the structures and morphologies. Also, the theoretical values such as electrochemical surface area (ECSA) and specific capacitance (Cs) were calculated in aqueous acidic solution with and without methanol. Cs values of the PGE/3.25mMPt@PDiAzBiPhBiTyOx electrode in aqueous acidic solution with and without methanol were 3.861 and 3x10-4Fg-1 respectively. Also, the electrochemical surface area values of the same electrode in aqueous acidic solution with and without methanol were 196.437 and 21.150m2g-1 respectively.","PeriodicalId":22384,"journal":{"name":"The Eurasia Proceedings of Science Technology Engineering and Mathematics","volume":"29 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-12-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139159334","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
The Paycell Mobile Payment application serves as a platform where users can benefit from various payment and shopping services. Each user explores services within the application based on their own interests and needs, and this process generates a significant amount of data. The data created has become an important resource for improving user experience and enhancing the services offered. The primary goal of our project is to enrich the user experience and offer personalized recommendations based on real transactions to meet financial needs more effectively. This approach represents a significant step in the mobile payment systems industry in terms of data analytics and personalization. Simultaneously, this approach aims to position the Paycell application as a 'super app' where users can personalize their financial transactions. Our project captures user-initiated transactions with the aim of providing personalized recommendations tailored to users' interests and needs. These data are analyzed using data processing methods to obtain meaningful results. The results are then used to offer personalized recommendations to users. This approach contributes to users having more tailored experiences and meeting their financial needs more effectively.
{"title":"Design and Development of Mobile Payment Platform Software Supported by Analytical Capabilities for Payment Systems","authors":"Pınar CELDIRME-KAYGUSUZ, Unal Asil, Semih Kokcu","doi":"10.55549/epstem.1408849","DOIUrl":"https://doi.org/10.55549/epstem.1408849","url":null,"abstract":"The Paycell Mobile Payment application serves as a platform where users can benefit from various payment and shopping services. Each user explores services within the application based on their own interests and needs, and this process generates a significant amount of data. The data created has become an important resource for improving user experience and enhancing the services offered. The primary goal of our project is to enrich the user experience and offer personalized recommendations based on real transactions to meet financial needs more effectively. This approach represents a significant step in the mobile payment systems industry in terms of data analytics and personalization. Simultaneously, this approach aims to position the Paycell application as a 'super app' where users can personalize their financial transactions. Our project captures user-initiated transactions with the aim of providing personalized recommendations tailored to users' interests and needs. These data are analyzed using data processing methods to obtain meaningful results. The results are then used to offer personalized recommendations to users. This approach contributes to users having more tailored experiences and meeting their financial needs more effectively.","PeriodicalId":22384,"journal":{"name":"The Eurasia Proceedings of Science Technology Engineering and Mathematics","volume":"13 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-12-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139159369","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Nutrient profiling models are useful for describing the health value of foods and underpinning various nutrition-related public health strategies. They are generally based on a food’s content of several nutrients (e.g., protein, salt, carbohydrates). The aim of this study is to review information on the nutritional profiles of foods and beverages sold in Turkey. Ten food and drink categories were reviewed in six physical food stores and four online stores. A total of 1,000 foods and beverages, 100 products from each group, were checked for nutrient profile according to their labels. While all dairy products are produced locally, 74% of baby and young children foods are produced foreign. Snacks have the highest energy and saturated fat (on average 2072.6 kJ/579.4 kcal; 13.2±6.23 g respectively). Dried food and ingredients have the highest fat (on average 35.2 g±21.61). Confectionaries received the highest carbohydrates and sugars (on average 79.6±19.56 g; 56.0±27.41 g respectively). Chilled foods have the highest protein levels (on average 18.0±9.31 g). Condiments and sauces have the highest salt (3.4±4.59 g). Beverages have the lowest energy, fat, saturated fat, protein and salt (on average 160.3 kJ/37,7 kcal; 0.0±0.00 g; 0.0±0.00 g; 0.1±0.16 g; 0.0±0.15 g respectively). Dairy has the lowest carbohydrates (on average 5.8±4.52 g) and chilled foods have the lowest sugar (on average 2.0±0,69 g). As nutrient profiling models are increasingly used worldwide to support public health strategies, having an up-to-date resource listing them and detailing their characteristics is crucial. It is believed that the results of this study may provide an up-to-date guide for determining the nutrient profile of commercially packaged foods sold in Türkiye.
{"title":"Nutrient Profile of Commercially Packaged Food Products in Türkiye","authors":"Fatma Hazan Gul","doi":"10.55549/epstem.1404387","DOIUrl":"https://doi.org/10.55549/epstem.1404387","url":null,"abstract":"Nutrient profiling models are useful for describing the health value of foods and underpinning various nutrition-related public health strategies. They are generally based on a food’s content of several nutrients (e.g., protein, salt, carbohydrates). The aim of this study is to review information on the nutritional profiles of foods and beverages sold in Turkey. Ten food and drink categories were reviewed in six physical food stores and four online stores. A total of 1,000 foods and beverages, 100 products from each group, were checked for nutrient profile according to their labels. While all dairy products are produced locally, 74% of baby and young children foods are produced foreign. Snacks have the highest energy and saturated fat (on average 2072.6 kJ/579.4 kcal; 13.2±6.23 g respectively). Dried food and ingredients have the highest fat (on average 35.2 g±21.61). Confectionaries received the highest carbohydrates and sugars (on average 79.6±19.56 g; 56.0±27.41 g respectively). Chilled foods have the highest protein levels (on average 18.0±9.31 g). Condiments and sauces have the highest salt (3.4±4.59 g). Beverages have the lowest energy, fat, saturated fat, protein and salt (on average 160.3 kJ/37,7 kcal; 0.0±0.00 g; 0.0±0.00 g; 0.1±0.16 g; 0.0±0.15 g respectively). Dairy has the lowest carbohydrates (on average 5.8±4.52 g) and chilled foods have the lowest sugar (on average 2.0±0,69 g). As nutrient profiling models are increasingly used worldwide to support public health strategies, having an up-to-date resource listing them and detailing their characteristics is crucial. It is believed that the results of this study may provide an up-to-date guide for determining the nutrient profile of commercially packaged foods sold in Türkiye.","PeriodicalId":22384,"journal":{"name":"The Eurasia Proceedings of Science Technology Engineering and Mathematics","volume":"32 3","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-12-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139157687","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Energy Management of the Hybrid Electric Wheel Loader","authors":"Mustafa Karahan","doi":"10.55549/epstem.1406265","DOIUrl":"https://doi.org/10.55549/epstem.1406265","url":null,"abstract":"<jats:p />","PeriodicalId":22384,"journal":{"name":"The Eurasia Proceedings of Science Technology Engineering and Mathematics","volume":"26 3","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-12-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139158036","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
The present paper describes a theoretical analysis of the effect of the end rotation of a statically indeterminate beam structure on the behaviour of a longitudinal crack. The beam is made of a material that is continuously inhomogeneous along the beam thickness. Besides, the material has non-linear elastic behaviour. The left end of the beam is supported with an axial double rod, while the right end is rigidly fixed. There is no external mechanical loading on the beam. Thus, the only influence on the beam is the rotation of the beam left end. Equations for determination the curvatures and the coordinates of the neutral axes are worked out and solved together with equations for resolving the static indeterminacy. The response of the longitudinal crack to the rotation of the beam left end is studied by deriving the strain energy release rate. For this purpose the balance of the energy in the beam is analyzed. The strain energy release rate is verified by applying the integral, J. A parametric analysis is performed to evaluate the influence of the beam end rotation and other factors on the longitudinal fracture.
{"title":"Indeterminate Continuously Inhomogeneous Beam under End Rotation: A Longitudinal Fracture Study","authors":"V. Ri̇zov","doi":"10.55549/epstem.1406766","DOIUrl":"https://doi.org/10.55549/epstem.1406766","url":null,"abstract":"The present paper describes a theoretical analysis of the effect of the end rotation of a statically indeterminate beam structure on the behaviour of a longitudinal crack. The beam is made of a material that is continuously inhomogeneous along the beam thickness. Besides, the material has non-linear elastic behaviour. The left end of the beam is supported with an axial double rod, while the right end is rigidly fixed. There is no external mechanical loading on the beam. Thus, the only influence on the beam is the rotation of the beam left end. Equations for determination the curvatures and the coordinates of the neutral axes are worked out and solved together with equations for resolving the static indeterminacy. The response of the longitudinal crack to the rotation of the beam left end is studied by deriving the strain energy release rate. For this purpose the balance of the energy in the beam is analyzed. The strain energy release rate is verified by applying the integral, J. A parametric analysis is performed to evaluate the influence of the beam end rotation and other factors on the longitudinal fracture.","PeriodicalId":22384,"journal":{"name":"The Eurasia Proceedings of Science Technology Engineering and Mathematics","volume":"21 16","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-12-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139158247","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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