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Journal of Theoretical and Applied Mechanics最新文献

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EXPERIMENTS AND NUMERICAL MODELLING OF AIR-WATER FLOW IN UNSATURATED SOILS WITH HYSTERESIS AND AIR ENTRAPMENT 非饱和土壤中气流-水流的实验和数值模拟（滞后和空气截留
Journal of Theoretical and Applied Mechanics Pub Date : 2024-03-12 DOI: 10.55787/jtams.24.54.1.103
{"title":"EXPERIMENTS AND NUMERICAL MODELLING OF AIR-WATER FLOW IN UNSATURATED SOILS WITH HYSTERESIS AND AIR ENTRAPMENT","authors":"","doi":"10.55787/jtams.24.54.1.103","DOIUrl":"https://doi.org/10.55787/jtams.24.54.1.103","url":null,"abstract":"","PeriodicalId":503677,"journal":{"name":"Journal of Theoretical and Applied Mechanics","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-03-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140249704","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}
引用次数: 0
QUASI-3D ANALYTIC MODEL FOR FREE VIBRATION ANALYSIS OF SIMPLY SUPPORTED FUNCTIONALLY GRADED PLATES (SS-FGP) 用于简支功能分级板（SS-FGP）自由振动分析的准三维分析模型
Journal of Theoretical and Applied Mechanics Pub Date : 2024-03-12 DOI: 10.55787/jtams.24.54.1.089
{"title":"QUASI-3D ANALYTIC MODEL FOR FREE VIBRATION ANALYSIS OF SIMPLY SUPPORTED FUNCTIONALLY GRADED PLATES (SS-FGP)","authors":"","doi":"10.55787/jtams.24.54.1.089","DOIUrl":"https://doi.org/10.55787/jtams.24.54.1.089","url":null,"abstract":"","PeriodicalId":503677,"journal":{"name":"Journal of Theoretical and Applied Mechanics","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-03-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140250391","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}
引用次数: 0
EFFECTS OF MAGNETIC FIELD ON HEAT AND MASS TRANSFER IN PULSATILE FLOW OF BLOOD UNDER STENOTIC CONDITION 磁场对狭窄条件下脉动血流中传热和传质的影响
Journal of Theoretical and Applied Mechanics Pub Date : 2024-03-12 DOI: 10.55787/jtams.24.54.1.007
{"title":"EFFECTS OF MAGNETIC FIELD ON HEAT AND MASS TRANSFER IN PULSATILE FLOW OF BLOOD UNDER STENOTIC CONDITION","authors":"","doi":"10.55787/jtams.24.54.1.007","DOIUrl":"https://doi.org/10.55787/jtams.24.54.1.007","url":null,"abstract":"","PeriodicalId":503677,"journal":{"name":"Journal of Theoretical and Applied Mechanics","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-03-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140250761","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}
引用次数: 0
Tuning of the equilibrated residual method for applications in general, direct and inverse piezoelectricity 调谐平衡残差法在一般、直接和反向压电中的应用
Journal of Theoretical and Applied Mechanics Pub Date : 2024-03-10 DOI: 10.15632/jtam-pl/184626
Grzegorz Zboiński
{"title":"Tuning of the equilibrated residual method for applications in general, direct and inverse piezoelectricity","authors":"Grzegorz Zboiński","doi":"10.15632/jtam-pl/184626","DOIUrl":"https://doi.org/10.15632/jtam-pl/184626","url":null,"abstract":"This paper presents application and tuning of the equilibrated residual method (ERM) of a posteriori error estimation for coupled electromechanical problems of direct, inverse and general piezoelectricity. In these three cases, either electric potential is induced by strains or strains appear due to the applied electric potential or both phenomena occur simultaneously. The mentioned ERM is assigned for the assessment of modeling and approximation errors of the numerical finite element solution. Such error values usually serve as indication for adaptive hierarchical modeling and adaptive mesh changes within thin and/or solid piezoelectric members so as to obtain the solution of assumed accuracy.","PeriodicalId":503677,"journal":{"name":"Journal of Theoretical and Applied Mechanics","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-03-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140255056","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}
引用次数: 0
Material discontinuity problems solved by a meshless method based on variably scaled discontinuous radial functions 基于可变比例不连续径向函数的无网格法解决材料不连续问题
Journal of Theoretical and Applied Mechanics Pub Date : 2024-03-06 DOI: 10.15632/jtam-pl/185323
Artur Krowiak, J. Podgórski
{"title":"Material discontinuity problems solved by a meshless method based on variably scaled discontinuous radial functions","authors":"Artur Krowiak, J. Podgórski","doi":"10.15632/jtam-pl/185323","DOIUrl":"https://doi.org/10.15632/jtam-pl/185323","url":null,"abstract":"The paper presents a meshless method based on global interpolation with radial base functions and shows its application in solving interface problems. Such problems arise when two or more different materials are used to construct the element under consideration. Across the interface between the materials, a discontinuity of material parameters arises. To solve the problem, the radial basis function-based collocation method is applied. To properly reflect the discontinuity, the base functions are modified. In this paper, the method is applied to solve problems described by elliptic equations. Using these examples, the accuracy, stability and convergence of the method are examined.","PeriodicalId":503677,"journal":{"name":"Journal of Theoretical and Applied Mechanics","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-03-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140263085","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}
引用次数: 0
Analysis of the influence of geometrical imperfections on the equivalent load stabilizing roof truss with lateral bracing system 分析几何缺陷对带侧向支撑系统的等效荷载稳定屋顶桁架的影响
Journal of Theoretical and Applied Mechanics Pub Date : 2024-03-06 DOI: 10.15632/jtam-pl/185163
M. Krajewski
{"title":"Analysis of the influence of geometrical imperfections on the equivalent load stabilizing roof truss with lateral bracing system","authors":"M. Krajewski","doi":"10.15632/jtam-pl/185163","DOIUrl":"https://doi.org/10.15632/jtam-pl/185163","url":null,"abstract":"The paper is focused on the numerical analysis of the stability and load bearing capacity of a flat steel truss. The structure is supported by elastic lateral braces. The translational and rotational brace stiffness are taken into account. The linear buckling analysis is performed for the beam and shell model of the truss. The nonlinear static analysis is conducted for the structure initial geometric imperfections. As a result, the buckling and limit load depending on brace stiffness has been obtained. The reactions in elastic braces are compared to stabilizing forces calculated on the basis of actual code requirements","PeriodicalId":503677,"journal":{"name":"Journal of Theoretical and Applied Mechanics","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-03-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140261794","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}
引用次数: 0
Cryopreservation analysis considering degree of crystallisation using fuzzy arithmetic 利用模糊运算法对结晶程度进行冷冻分析
Journal of Theoretical and Applied Mechanics Pub Date : 2024-02-19 DOI: 10.15632/jtam-pl/183697
A. Piasecka-Belkhayat, A. Skorupa
{"title":"Cryopreservation analysis considering degree of crystallisation using fuzzy arithmetic","authors":"A. Piasecka-Belkhayat, A. Skorupa","doi":"10.15632/jtam-pl/183697","DOIUrl":"https://doi.org/10.15632/jtam-pl/183697","url":null,"abstract":"This article presents numerical modelling of the heat transfer process in a sample during cryopreservation by vitrification in a microfluidic system. Single-phase flow of the working fluid in the microchannels during warming was considered, while two-phase flow during cooling. The mathematical model is based on the Fourier equation with a source term that takes into account the degree of ice crystallisation. Fuzzy thermophysical parameters were assumed in the model. The problem was solved by the finite difference method and the fourth-order Runge-Kutta algorithm, using the concept of α -cuts. The results of numerical simulation were compared with the results from the literature.","PeriodicalId":503677,"journal":{"name":"Journal of Theoretical and Applied Mechanics","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-02-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140451247","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}
引用次数: 0
Elastic buckling of a rectangular sandwich plate with an individual functionally graded core 带有单独功能分级芯材的矩形夹层板的弹性屈曲
Journal of Theoretical and Applied Mechanics Pub Date : 2024-01-31 DOI: 10.15632/jtam-pl/178521
K. Magnucki, E. Magnucka-Blandzi, Krzysztof Sowiński
{"title":"Elastic buckling of a rectangular sandwich plate with an individual functionally graded core","authors":"K. Magnucki, E. Magnucka-Blandzi, Krzysztof Sowiński","doi":"10.15632/jtam-pl/178521","DOIUrl":"https://doi.org/10.15632/jtam-pl/178521","url":null,"abstract":"","PeriodicalId":503677,"journal":{"name":"Journal of Theoretical and Applied Mechanics","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-01-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140475935","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}
引用次数: 0
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