Pub Date : 2022-02-01DOI: 10.17804/2410-9908.2022.1.016-024
V. V. Struzhanov
A technique is proposed that makes it possible to predict delamination in laminated composites. The technique is based on taking into consideration binder softening both under uniaxial transverse tension and in a plane stress state formed during longitudinal and transverse tension. The stratification moment is determined by the methods of the mathematical catastrophe theory.
{"title":"On one model of deformation in laminated composites","authors":"V. V. Struzhanov","doi":"10.17804/2410-9908.2022.1.016-024","DOIUrl":"https://doi.org/10.17804/2410-9908.2022.1.016-024","url":null,"abstract":"A technique is proposed that makes it possible to predict delamination in laminated composites. The technique is based on taking into consideration binder softening both under uniaxial transverse tension and in a plane stress state formed during longitudinal and transverse tension. The stratification moment is determined by the methods of the mathematical catastrophe theory.","PeriodicalId":11165,"journal":{"name":"Diagnostics, Resource and Mechanics of materials and structures","volume":"129 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76662621","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}
Pub Date : 2021-12-01DOI: 10.17804/2410-9908.2021.6.032-036
D. Ksenofontov, V. Kostin
Nondestructive testing methods utilize various sensors, and different signal types require different processing methods. Digital implementation of signal processing methods can expand the variety of methods implemented by one system. An eddy-current test system based on the E14-440 module has been developed. Quadrature amplitude demodulation and fast Fourier transformation are implemented to analyze the signal. The amplitude, phase, and complex parts of the signal are calculated. It is shown that both methods are applicable and allow elimination of some analog circuits. However, digital signal processing significantly depends on conversion rates and synchronization between generation and pickup of the signal.
{"title":"Implementation of digital methods to analyze eddy-current signals based on the E14-440 module","authors":"D. Ksenofontov, V. Kostin","doi":"10.17804/2410-9908.2021.6.032-036","DOIUrl":"https://doi.org/10.17804/2410-9908.2021.6.032-036","url":null,"abstract":"Nondestructive testing methods utilize various sensors, and different signal types require different processing methods. Digital implementation of signal processing methods can expand the variety of methods implemented by one system. An eddy-current test system based on the E14-440 module has been developed. Quadrature amplitude demodulation and fast Fourier transformation are implemented to analyze the signal. The amplitude, phase, and complex parts of the signal are calculated. It is shown that both methods are applicable and allow elimination of some analog circuits. However, digital signal processing significantly depends on conversion rates and synchronization between generation and pickup of the signal.","PeriodicalId":11165,"journal":{"name":"Diagnostics, Resource and Mechanics of materials and structures","volume":"8 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79511686","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}
Pub Date : 2021-12-01DOI: 10.17804/2410-9908.2021.6.045-053
A. Nikitin, A. V. Mikhaylov, Y. Gobov, S. E. Popov
The paper presents a theoretical and experimental confirmation of the technique allowing the surface of defect location and its geometric parameters to be determined from measuring the values of the magnetic field components above one of the surfaces of a magnetically soft ferromagnetic plate. The technique allows one to take into account the nonlinearity of the response of a ferromagnet to an external magnetostatic field.
{"title":"Determination of the surface of defect location and restoration of its geometric parameters by the MFL method with one-sided access to the ferromagnetic plate","authors":"A. Nikitin, A. V. Mikhaylov, Y. Gobov, S. E. Popov","doi":"10.17804/2410-9908.2021.6.045-053","DOIUrl":"https://doi.org/10.17804/2410-9908.2021.6.045-053","url":null,"abstract":"The paper presents a theoretical and experimental confirmation of the technique allowing the surface of defect location and its geometric parameters to be determined from measuring the values of the magnetic field components above one of the surfaces of a magnetically soft ferromagnetic plate. The technique allows one to take into account the nonlinearity of the response of a ferromagnet to an external magnetostatic field.","PeriodicalId":11165,"journal":{"name":"Diagnostics, Resource and Mechanics of materials and structures","volume":"16 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73239628","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}
Pub Date : 2021-12-01DOI: 10.17804/2410-9908.2021.6.019-031
A. Chumaevsky, A. Panfilov, E. Knyazhev, A. Zykova, A. Gusarova, K. Kalashnikov, A. Vorontsov, N. Savchenko, S. Nikonov, A. Cheremnov, V. Е. Rubtsov, E. Kolubaev
This study presents the results of experimental work on the production and examination of samples of laminated polymetallic products made by wire-feed electron-beam additive technology using the technique of controlled filament feeding into the melt bath. The structure of the products based on M1 copper and AMg5 aluminum alloy combines metallic and intermetallic layers with the presence of a gradient transition between the phases. Inside the layers with a transition structure the distribution of intermetallic phases can be of different types. The microhardness values of the different structural constituents of the samples differ by more than a factor of 16. The mechanical properties of the material of the transition layers are characterized by low strength and low plasticity. In the structure of the intermetallic layers and at the boundary between them the formation of defects in the form of cracks and delaminations is observed.
{"title":"Production of gradient intermetallic layers based on aluminum alloy and copper by electron-beam additive technology","authors":"A. Chumaevsky, A. Panfilov, E. Knyazhev, A. Zykova, A. Gusarova, K. Kalashnikov, A. Vorontsov, N. Savchenko, S. Nikonov, A. Cheremnov, V. Е. Rubtsov, E. Kolubaev","doi":"10.17804/2410-9908.2021.6.019-031","DOIUrl":"https://doi.org/10.17804/2410-9908.2021.6.019-031","url":null,"abstract":"This study presents the results of experimental work on the production and examination of samples of laminated polymetallic products made by wire-feed electron-beam additive technology using the technique of controlled filament feeding into the melt bath. The structure of the products based on M1 copper and AMg5 aluminum alloy combines metallic and intermetallic layers with the presence of a gradient transition between the phases. Inside the layers with a transition structure the distribution of intermetallic phases can be of different types. The microhardness values of the different structural constituents of the samples differ by more than a factor of 16. The mechanical properties of the material of the transition layers are characterized by low strength and low plasticity. In the structure of the intermetallic layers and at the boundary between them the formation of defects in the form of cracks and delaminations is observed.","PeriodicalId":11165,"journal":{"name":"Diagnostics, Resource and Mechanics of materials and structures","volume":"8 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73654435","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}
Pub Date : 2021-12-01DOI: 10.17804/2410-9908.2021.6.006-018
A. Nikolaev
Chromium has limited solubility in -iron. It is shown that unsaturated Fe-Cr alloys should demonstrate short-range ordering (i.e. tendency to neighboring of Fe and Cr atoms). The type of short-range ordering in several Fe-Cr alloys is revealed from the data on the recovery of residual electrical resistivity after low temperature electron irradiation at sufficiently low temperatures. The combined consideration of the data on short-range ordering and chromium solubility at 570 K (Scr. Mater. 2014 v. 74, p. 48 and ibid 2016 v. 122, p. 31) gives the confidence interval for the solubility limit near 270 K equal to 8.8±0.4 at. % Cr.
铬在-铁中的溶解度有限。结果表明，不饱和Fe-Cr合金应表现为短程有序(即Fe和Cr原子倾向于相邻)。低温电子辐照后的残余电阻率恢复数据揭示了几种Fe-Cr合金的短程有序类型。综合考虑了570k (Scr)下短程有序度和铬溶解度的数据。Mater. 2014 v. 74，第48页，同上2016 v. 122，第31页)给出270 K附近溶解度极限的置信区间等于8.8±0.4 at。% Cr。
{"title":"Short-range order in Fe-Cr alloys irradiated with electrons at low temperatures and cr solubility in α-iron near 270 K","authors":"A. Nikolaev","doi":"10.17804/2410-9908.2021.6.006-018","DOIUrl":"https://doi.org/10.17804/2410-9908.2021.6.006-018","url":null,"abstract":"Chromium has limited solubility in -iron. It is shown that unsaturated Fe-Cr alloys should demonstrate short-range ordering (i.e. tendency to neighboring of Fe and Cr atoms). The type of short-range ordering in several Fe-Cr alloys is revealed from the data on the recovery of residual electrical resistivity after low temperature electron irradiation at sufficiently low temperatures. The combined consideration of the data on short-range ordering and chromium solubility at 570 K (Scr. Mater. 2014 v. 74, p. 48 and ibid 2016 v. 122, p. 31) gives the confidence interval for the solubility limit near 270 K equal to 8.8±0.4 at. % Cr.","PeriodicalId":11165,"journal":{"name":"Diagnostics, Resource and Mechanics of materials and structures","volume":"39 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87877632","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}
Pub Date : 2021-12-01DOI: 10.17804/2410-9908.2021.6.054-067
A. Kazakov, L. Spevak
The paper deals with the construction of solutions to a nonlinear heat equation, which have the type of heat waves propagating over a cold (zero) background with a finite velocity. Such solutions are atypical for parabolic equations. They appear due to the degeneration of the parabolic type of equation on a manifold where the desired function becomes zero. Various kinds of boundary conditions provide the existence of solutions with the desired properties. The most complicated of them, specifying nonzero values of the desired function on a moving manifold, is considered in this paper. A new theorem of the existence and uniqueness of the solution to the heat wave initiation problem under the considered boundary condition is proved. A method for constructing an approximate solution based on expansion in radial basis functions and the collocation method is proposed. The solution is constructed in two steps. At the first step, we construct a solution in the domain situated between the specified moving manifold and the zero front, which is determined in the process of solving. A special variable change similar to hodograph transformation is used. At the second step, we complete the solution in the domain situated between the initial and actual position of the moving manifold. Calculations are made showing that the new approach gives good results and more stable convergence as compared with the boundary element method used by the authors earlier.
{"title":"On the construction of a heat wave generated by a boundary condition on a moving border","authors":"A. Kazakov, L. Spevak","doi":"10.17804/2410-9908.2021.6.054-067","DOIUrl":"https://doi.org/10.17804/2410-9908.2021.6.054-067","url":null,"abstract":"The paper deals with the construction of solutions to a nonlinear heat equation, which have the type of heat waves propagating over a cold (zero) background with a finite velocity. Such solutions are atypical for parabolic equations. They appear due to the degeneration of the parabolic type of equation on a manifold where the desired function becomes zero. Various kinds of boundary conditions provide the existence of solutions with the desired properties. The most complicated of them, specifying nonzero values of the desired function on a moving manifold, is considered in this paper. A new theorem of the existence and uniqueness of the solution to the heat wave initiation problem under the considered boundary condition is proved. A method for constructing an approximate solution based on expansion in radial basis functions and the collocation method is proposed. The solution is constructed in two steps. At the first step, we construct a solution in the domain situated between the specified moving manifold and the zero front, which is determined in the process of solving. A special variable change similar to hodograph transformation is used. At the second step, we complete the solution in the domain situated between the initial and actual position of the moving manifold. Calculations are made showing that the new approach gives good results and more stable convergence as compared with the boundary element method used by the authors earlier.","PeriodicalId":11165,"journal":{"name":"Diagnostics, Resource and Mechanics of materials and structures","volume":"6 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90607725","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}
Pub Date : 2021-12-01DOI: 10.17804/2410-9908.2021.6.068-079
V. G. Kuleev
It is theoretically shown that in cases where the process of irreversible magnetization reversal of ferromagnetic steels is determined by displacements of only 180° domain boundaries, the dependences of reversible permeability on the switching field in low-carbon steels when a direct current is passed along a rod sample should have two maxima instead of the usual one that occurs in the absence of this current. The distances between the maxima of these peaks linearly depend on the value of the constant component of the current and, consequently, on the constant circular magnetic field caused by it, perpendicular to the switching field. This phenomenon should occur both for undeformed steel samples in the state after annealing and for samples after plastic stretching. In the latter case, elastic tensile stresses of such magnitude should act to compensate for internal residual compressive stresses. The fields of both peaks of magnetic permeability in these two cases are close to each other.
{"title":"The effect of direct current in a steel rod on the switching field dependence of magnetic permeability","authors":"V. G. Kuleev","doi":"10.17804/2410-9908.2021.6.068-079","DOIUrl":"https://doi.org/10.17804/2410-9908.2021.6.068-079","url":null,"abstract":"It is theoretically shown that in cases where the process of irreversible magnetization reversal of ferromagnetic steels is determined by displacements of only 180° domain boundaries, the dependences of reversible permeability on the switching field in low-carbon steels when a direct current is passed along a rod sample should have two maxima instead of the usual one that occurs in the absence of this current. The distances between the maxima of these peaks linearly depend on the value of the constant component of the current and, consequently, on the constant circular magnetic field caused by it, perpendicular to the switching field. This phenomenon should occur both for undeformed steel samples in the state after annealing and for samples after plastic stretching. In the latter case, elastic tensile stresses of such magnitude should act to compensate for internal residual compressive stresses. The fields of both peaks of magnetic permeability in these two cases are close to each other.","PeriodicalId":11165,"journal":{"name":"Diagnostics, Resource and Mechanics of materials and structures","volume":"5 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74778481","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}
Pub Date : 2021-12-01DOI: 10.17804/2410-9908.2021.6.037-044
I. Valov
The paper solves the problem of determining the pressure field in a liquid during experimental testing of the motion of objects under water. A calculation method is given for determining the pressure field on the walls of a cylindrical container during the intensive development of a spherical gas cavity in a liquid. The presence of solid container walls is taken into account by placing fictitious sources on them with an intensity that ensures the fulfillment of the non-leakage condition. The law of development of a gas bubble, similar to the Rayleigh equation, is derived; the mass of gas in the bubble is determined in accordance with the Saint-Venant equation. The pressure at the container point of interest to the researcher is calculated with the use of the Cauchy-Lagrange integral. The constructed method makes it possible to estimate the loads on the experimental stand in the event of an emergency situation.
{"title":"Studying the process of pulsed loading of a water-filled cylindrical container","authors":"I. Valov","doi":"10.17804/2410-9908.2021.6.037-044","DOIUrl":"https://doi.org/10.17804/2410-9908.2021.6.037-044","url":null,"abstract":"The paper solves the problem of determining the pressure field in a liquid during experimental testing of the motion of objects under water. A calculation method is given for determining the pressure field on the walls of a cylindrical container during the intensive development of a spherical gas cavity in a liquid. The presence of solid container walls is taken into account by placing fictitious sources on them with an intensity that ensures the fulfillment of the non-leakage condition. The law of development of a gas bubble, similar to the Rayleigh equation, is derived; the mass of gas in the bubble is determined in accordance with the Saint-Venant equation. The pressure at the container point of interest to the researcher is calculated with the use of the Cauchy-Lagrange integral. The constructed method makes it possible to estimate the loads on the experimental stand in the event of an emergency situation.","PeriodicalId":11165,"journal":{"name":"Diagnostics, Resource and Mechanics of materials and structures","volume":"5 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87114260","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}
Pub Date : 2021-10-01DOI: 10.17804/2410-9908.2021.5.015-023
A. Nosov, I. Gribov, N. Moskvina, A. Druzhinin, S. S. Dubinin, V. V. Izyurov, K. A. Merentsova, M. S. Artemiev
The paper studies the influence of the composition of a thin-film composite magnetostrictive ferromagnet on the magnetoelectric effect (ME) in ferromagnet/piezoelectric/ferromagnet laminated trilayers at resonant frequencies. The PZT material was used in the piezoelectric layer. The graded composite magnetostrictive ferromagnet with a thickness gradient of the magnetostriction coefficient was obtained by pulsed laser deposition of thin Fe0.72Ga0.28 or Fe0.62Co0.19Ga0.19 films on the surface of Metglas-type 440A amorphous ribbons. The ME was investigated at resonant frequencies of 3 and 9.32 kHz. It is shown that the maximum ME value increases with frequency. The deposition of magnetostrictive thin films decreases the maximum ME value, but increases the Q-factor. The results can be useful for developing sensors of static and low-frequency magnetic fields for magnetic nondestructive testing applications under resonant excitation conditions.
{"title":"Low-frequency resonance in laminated FeGa-FeCoGa/Metglas/PZT structures","authors":"A. Nosov, I. Gribov, N. Moskvina, A. Druzhinin, S. S. Dubinin, V. V. Izyurov, K. A. Merentsova, M. S. Artemiev","doi":"10.17804/2410-9908.2021.5.015-023","DOIUrl":"https://doi.org/10.17804/2410-9908.2021.5.015-023","url":null,"abstract":"The paper studies the influence of the composition of a thin-film composite magnetostrictive ferromagnet on the magnetoelectric effect (ME) in ferromagnet/piezoelectric/ferromagnet laminated trilayers at resonant frequencies. The PZT material was used in the piezoelectric layer. The graded composite magnetostrictive ferromagnet with a thickness gradient of the magnetostriction coefficient was obtained by pulsed laser deposition of thin Fe0.72Ga0.28 or Fe0.62Co0.19Ga0.19 films on the surface of Metglas-type 440A amorphous ribbons. The ME was investigated at resonant frequencies of 3 and 9.32 kHz. It is shown that the maximum ME value increases with frequency. The deposition of magnetostrictive thin films decreases the maximum ME value, but increases the Q-factor. The results can be useful for developing sensors of static and low-frequency magnetic fields for magnetic nondestructive testing applications under resonant excitation conditions.","PeriodicalId":11165,"journal":{"name":"Diagnostics, Resource and Mechanics of materials and structures","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85173342","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}
Pub Date : 2021-10-01DOI: 10.17804/2410-9908.2021.5.24-35
R. Savrai, S. Gladkovsky, S. Lepikhin, Yu. M. Kolobylin
Layered metal composites made of dissimilar metals and alloys occupy a special place among modern composite materials. In particular, their use is considered promising when high strength, fatigue resistance, and wear resistance are required. However, there are few data on the abrasive wear resistance of such composites, and further study is necessary. In this paper, an attempt is made to formulate some approaches to the development of wear-resistant laminated metal composites in order to promote more detailed research. For this purpose, the abrasive wear resistance at room (+25 °C) and cryogenic (−196 °C) temperatures of a layered metal composite consisting of low-alloy and maraging steels was studied. The composite was obtained by explosive welding. It is shown that the wear resistance of the composite is determined by the combined influence of a number of factors, namely the presence of interlayer boundaries, the structural state, hardness, and toughness of the steels. It is concluded that, for better wear resistance of a layered composite, the dissimilar layers must wear out evenly under existing environmental conditions.
{"title":"Approaches to the development of wear-resistant laminatedmetal composites","authors":"R. Savrai, S. Gladkovsky, S. Lepikhin, Yu. M. Kolobylin","doi":"10.17804/2410-9908.2021.5.24-35","DOIUrl":"https://doi.org/10.17804/2410-9908.2021.5.24-35","url":null,"abstract":"Layered metal composites made of dissimilar metals and alloys occupy a special place among modern composite materials. In particular, their use is considered promising when high strength, fatigue resistance, and wear resistance are required. However, there are few data on the abrasive wear resistance of such composites, and further study is necessary. In this paper, an attempt is made to formulate some approaches to the development of wear-resistant laminated metal composites in order to promote more detailed research. For this purpose, the abrasive wear resistance at room (+25 °C) and cryogenic (−196 °C) temperatures of a layered metal composite consisting of low-alloy and maraging steels was studied. The composite was obtained by explosive welding. It is shown that the wear resistance of the composite is determined by the combined influence of a number of factors, namely the presence of interlayer boundaries, the structural state, hardness, and toughness of the steels. It is concluded that, for better wear resistance of a layered composite, the dissimilar layers must wear out evenly under existing environmental conditions.","PeriodicalId":11165,"journal":{"name":"Diagnostics, Resource and Mechanics of materials and structures","volume":"49 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81775717","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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