title: Homogenized finite element analysis on effective elastoplastic mechanical behaviors of composite with imperfect interfaces.
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.
authors.affiliation: School of Aeronautical Manufacturing Engineering, Nanchang Hangkong University, Nanchang 330063, China. jiangwugui@nchu.edu.cn.
authors.forename: Wu-Gui
authors.initials: WG
authors.lastname: Jiang
authors.affiliation: School of Aeronautical Manufacturing Engineering, Nanchang Hangkong University, Nanchang 330063, China. lukerenzhi@126.com.
authors.forename: Ren-Zhi
authors.initials: RZ
authors.lastname: Zhong
authors.affiliation: Research School of Engineering, the Australian National University, Acton, ACT 2601, Australia. qinghua.qin@anu.edu.au.
authors.forename: Qing H
authors.initials: QH
authors.lastname: Qin
authors.affiliation: Research School of Engineering, the Australian National University, Acton, ACT 2601, Australia. tygiaarh419@163.com.
authors.forename: Yong-Gang
authors.initials: YG
authors.lastname: Tong
mesh_terms: D000465:Algorithms; D008962:Models, Theoretical