期刊
JOURNAL OF COMPOSITE MATERIALS
卷 47, 期 27, 页码 3389-3400出版社
SAGE PUBLICATIONS LTD
DOI: 10.1177/0021998312465977
关键词
Finite element; damage; glass fiber; interfacial debonding; matrix cracking; multiscale; random fiber composites; representative volume element
资金
- National Science Foundation [0 728 049]
A multiscale numerical approach is established to model damage in random glass fiber composites. A representative volume element of a random glass fiber composite is employed to analyze microscale damage mechanisms, such as matrix cracking and fiber-matrix interfacial debonding, while the associated damage variables are defined and applied in a mesoscale stiffness reduction law. The macroscopic response of the homogenized mesoscale damage model is investigated using finite element analysis and validated through experiments. A case study of a random glass fiber composite plate containing a central hole subjected to tensile loading is performed to illustrate the applicability of the multiscale damage model.
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