A Cell-Based Smoothed Finite Element Method for Modal Analysis of Non-Woven Fabrics
| العنوان: | A Cell-Based Smoothed Finite Element Method for Modal Analysis of Non-Woven Fabrics |
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| المؤلفون: | Abel J. P. Gomes, Fernando Ferreira, N. Dourado, Nguyen Trong Quyen |
| المساهمون: | Universidade do Minho |
| المصدر: | Repositório Científico de Acesso Aberto de Portugal Repositório Científico de Acesso Aberto de Portugal (RCAAP) instacron:RCAAP |
| بيانات النشر: | Computers, Materials and Continua (Tech Science Press), 2021. |
| سنة النشر: | 2021 |
| مصطلحات موضوعية: | strain smoothing technique, Computer science, Engenharia e Tecnologia::Engenharia Mecânica, Modal analysis, Engenharia e Tecnologia::Outras Engenharias e Tecnologias, 01 natural sciences, Biomaterials, Shear-locking, Engenharia e Tecnologia::Engenharia Civil, 0103 physical sciences, Engenharia dos Materiais [Engenharia e Tecnologia], Smoothed finite element method, Electrical and Electronic Engineering, 010301 acoustics, 010302 applied physics, Science & Technology, business.industry, Mindlin–Reissner theory of plates, Engenharia Mecânica [Engenharia e Tecnologia], Structural engineering, Computer Science Applications, gradient, Engenharia e Tecnologia::Engenharia dos Materiais, Non-woven fabric, Mechanics of Materials, Modeling and Simulation, Gradient/strain smoothing technique, Engenharia Civil [Engenharia e Tecnologia], Outras Engenharias e Tecnologias [Engenharia e Tecnologia], business, Cell based |
| الوصف: | The combination of a 4-node quadrilateral mixed interpolation of tensorial components element (MITC4) and the cell-based smoothed finite element method (CSFEM) was formulated and implemented in this work for the analysis of free vibration and unidirectional buckling of shell structures. This formulation was applied to numerous numerical examples of non-woven fabrics. As CSFEM schemes do not require coordinate transformation, spurious modes and numerical instabilities are prevented using bilinear quadrilateral element subdivided into two, three and four smoothing cells. An improvement of the original CSFEM formulation was made regarding the calculation of outward unit normal vectors, which allowed to remove the integral operator in the strain smoothing operation. This procedure conducted both to the simplification of the developed formulation and the reduction of computational cost. A wide range of values for the thickness-to-length ratio and edge boundary conditions were analysed. The developed numerical model proved to overcome the shear locking phenomenon with success, revealing both reduced implementation effort and computational cost in comparison to the conventional FEM approach. The cell-based strain smoothing technique used in this work yields accurate results and generally attains higher convergence rate in energy at low computational cost This work was supported by the Portuguese Foundation for Science and Technology (FCT) through project UID/CTM/00264/2019 of 2C2T-Centro de Ciencia e Tecnologia Textil, hold by National Founds of FCT/MCTES, and project UID/EEA/04436/2013, COMPETE 2020 with the code POCI-01-0145-FEDER-006941. |
| وصف الملف: | application/epub+zip; application/pdf |
| تدمد: | 1546-2226 |
| DOI: | 10.32604/cmc.2021.013164 |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f2fc654b389499bfdc45502a9a941941 https://doi.org/10.32604/cmc.2021.013164 |
| Rights: | OPEN |
| رقم الانضمام: | edsair.doi.dedup.....f2fc654b389499bfdc45502a9a941941 |
| قاعدة البيانات: | OpenAIRE |
| تدمد: | 15462226 |
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| DOI: | 10.32604/cmc.2021.013164 |