Finite element modeling strategies for 2D and 3D delamination propagation in composite DCB specimens using VCCT, CZM and XFEM approaches
In: Theoretical and Applied Fracture Mechanics, Jg. 103 (2019-10-01), S. 102246-102246
Online
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Zugriff:
Virtual crack closure technique (VCCT), cohesive zone modeling (CZM) and extended finite element method (XFEM) are three well-known numerical methods frequently used for crack propagation modeling. It is often questioned by new researchers and engineers: which method is more appropriate for modeling of delamination propagation in composites? In this study, advantages, limitations, and challenges of each method are discussed with the goal of finding a suitable and cost-effective solution for modeling of delamination propagation in laminated composites. To this end, a composite double cantilever beam (DCB) specimen as a benchmark example is modeled in ABAQUS and delamination propagation is simulated using three above methods and the combination of XFEM with VCCT and CZM. Two-dimensional plain strain and three-dimensional DCB models are both considered. Finite element results are compared with experimental results available in the literature for unidirectional DCB specimens. Finally, the accuracy, convergence speed, run-time and mesh dependency of each method are discussed. The XFEM-CZM was found as a suitable method for simulation of delamination growth.
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Finite element modeling strategies for 2D and 3D delamination propagation in composite DCB specimens using VCCT, CZM and XFEM approaches
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Autor/in / Beteiligte Person: | Sayedain, Mousa ; Heidari-Rarani, Mohammad |
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Zeitschrift: | Theoretical and Applied Fracture Mechanics, Jg. 103 (2019-10-01), S. 102246-102246 |
Veröffentlichung: | Elsevier BV, 2019 |
Medientyp: | unknown |
ISSN: | 0167-8442 (print) |
DOI: | 10.1016/j.tafmec.2019.102246 |
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