@Article{cmes.2019.06542,
AUTHOR = {Yana  Wang, Ruodi  Jia, Fengrui  Liu},
TITLE = {A Ply-By-Ply Discretized 2D FEA Approach with the Integrated XFEM-CE Strategy for Predicting Multiple Failures in Laminated Composite Structures},
JOURNAL = {Computer Modeling in Engineering \& Sciences},
VOLUME = {120},
YEAR = {2019},
NUMBER = {1},
PAGES = {215--234},
URL = {http://www.techscience.com/CMES/v120n1/27489},
ISSN = {1526-1506},
ABSTRACT = {Delamination and matrix cracking are two common failure mechanisms in composite structures, and are usually coupled with each other, leading to multiple failures pattern. This paper proposed a fast damage prediction methodology for composite laminated structures based on the ply-by-ply 2D (two dimensional) FE model of composite laminates in the transverse plane. The layer-wise 2D FE model was firstly used in conjunction with the integrated XFEM/CE strategy, which simulated the interface delamination with cohesive elements and the intra-ply matrix crack with XFEM (extended finite element method). To realize ply-by-ply 2D FE (finite element) modeling of composite laminates, two 2D material models were developed based on the plane stress assumption and plane strain assumption, respectively. A general crack propagation scheme was developed in the framework of the integrated XFEM-CE method. Adopting the 2D material model based on the plane strain assumption, a ply-by-ply discretized 2D FEA procedure was conducted for an out-of-plane composite Pi joint under the static tensile load. The predicted load-displacement response and damage evolution process showed good agreement with the experimental results, which verified the proposed approach.},
DOI = {10.32604/cmes.2019.06542}
}