1. Homogenized Finite Element Analysis on Effective Elastoplastic Mechanical Behaviors of Composite with Imperfect Interfaces
- Author
-
Qing H. Qin, Ren-Zhi Zhong, Wu-Gui Jiang, and Yong-Gang Tong
- Subjects
Materials science ,Composite number ,Constitutive equation ,finite element method ,homogenization ,Ceramic matrix composite ,interface effect ,Homogenization (chemistry) ,Catalysis ,Article ,lcsh:Chemistry ,Inorganic Chemistry ,Ultimate tensile strength ,Ceramic ,Physical and Theoretical Chemistry ,Composite material ,lcsh:QH301-705.5 ,Molecular Biology ,Spectroscopy ,Organic Chemistry ,General Medicine ,Models, Theoretical ,Finite element method ,Computer Science Applications ,lcsh:Biology (General) ,lcsh:QD1-999 ,tensile strength ,visual_art ,visual_art.visual_art_medium ,Representative elementary volume ,fiber-reinforced ceramic matrix composites ,Algorithms - Abstract
A three-dimensional (3D) representative volume element (RVE) model was developed for analyzing effective mechanical behavior of fiber-reinforced ceramic matrix composites with imperfect interfaces. In the model, the fiber is assumed to be perfectly elastic until its tensile strength, and the ceramic material is modeled by an elasto-plastic Drucker-Prager constitutive law. The RVE model is then used to study the elastic properties and the tensile strength of composites with imperfect interfaces and validated through experiments. The imperfect interfaces between the fiber and the matrix are taken into account by introducing some cohesive contact surfaces. The influences of the interface on the elastic constants and the tensile strengths are examined through these interface models.
- Published
- 2014