| Autor: |
Shinnosuke NISHI, Kenjiro TERADA, İlker TEMİZER |
| Jazyk: |
japonština |
| Rok vydání: |
2018 |
| Předmět: |
|
| Zdroj: |
Nihon Kikai Gakkai ronbunshu, Vol 84, Iss 859, Pp 17-00554-17-00554 (2018) |
| Druh dokumentu: |
article |
| ISSN: |
2187-9761 |
| DOI: |
10.1299/transjsme.17-00554 |
| Popis: |
With a view to application to micro-macro decoupled multiscale simulations, a method of isogeometric homogenization analysis (IGHA) is proposed to characterize the in-plane macroscopic material behavior of dry woven fabrics in consideration of microscopic frictional-contact between fiber bundles. The microstructure of dry woven fabrics having periodicity only in in-plane directions, which is identified with the representative volume element to realize in-plane macroscopic deformations, is referred to as an in-plane unit cell in this study and is regarded as a virtual specimen in numerical plate testing (NPT). NURBS basis functions are utilized for discretization to accurately solve micro-scale frictional contact problems of fiber bundles and the knot-to-surface (KTS) and mortar-based KTS algorithms are employed to evaluate the contact- and friction-related variables. The initial state of an in-plane unit cells, which is supposed to be obtained by a weaving process, is determined as a solution of the bending problem of two fiber bundles contacting with each other and is in reality subjected to in-plane tension. Several numerical examples are presented to demonstrate the performance and capability of the proposed IGHA for conducting NPT of dry woven fabrics involving with microscale frictional-contact to characterize the geometrical-nonlinearity-induced material nonlinearity especially in response to macroscopic shear deformations. |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
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