A data-driven self-consistent clustering analysis for the progressive damage behavior of 3D braided composites

2020 ◽  
Vol 249 ◽  
pp. 112471 ◽  
Author(s):  
Chunwang He ◽  
Jiaying Gao ◽  
Hengyang Li ◽  
Jingran Ge ◽  
Yanfei Chen ◽  
...  
2020 ◽  
pp. 152808372098017
Author(s):  
Chao Zhang ◽  
Jianchun Liu ◽  
Tinh Quoc Bui ◽  
Jose L Curiel-Sosa ◽  
Jinzhong Lu

The yarn/yarn and yarn/matrix interface debonding has been recognized as a vital failure mode of 3 D braided composites. We present in this paper a meso-scale finite element (FE) model, which considers yarn/yarn and yarn/matrix interface debonding, for modeling progressive damage evolution of 3 D braided composites under typical tensile and shear loadings. In this setting, the damage state of braiding yarns and matrix is described through a continuum damage model (CDM) coupled with Murakami damage tensor; a bilinear traction-separation description is employed to govern the yarn/yarn and yarn/matrix interface behavior modeled by surface-based cohesive contact. We thus develop a user-material subroutine VUMAT (ABAQUS/Explicit) for our progressive damage simulation, including stress analysis, failure analysis and material properties degradation scheme. The mechanical properties of 3 D braided composites, and more importantly the damage evolution of interface debonding are thoroughly analyzed. The proposed FE modeling strategy provides a new perspective for the interface response study of other textile composites.


2018 ◽  
Vol 192 ◽  
pp. 255-263 ◽  
Author(s):  
Bing Wang ◽  
Guodong Fang ◽  
Shuo Liu ◽  
Maoqing Fu ◽  
Jun Liang

2020 ◽  
Vol 231 (12) ◽  
pp. 5047-5061
Author(s):  
Bing Wang ◽  
Guodong Fang ◽  
Jun Liang ◽  
Shuo Liu ◽  
Songhe Meng

Materials ◽  
2019 ◽  
Vol 12 (5) ◽  
pp. 833 ◽  
Author(s):  
Zhenqiang Zhao ◽  
Haoyuan Dang ◽  
Jun Xing ◽  
Xi Li ◽  
Chao Zhang ◽  
...  

The mechanical characterization of textile composites is a challenging task, due to their nonuniform deformation and complicated failure phenomena. This article introduces a three-dimensional mesoscale finite element model to investigate the progressive damage behavior of a notched single-layer triaxially-braided composite subjected to axial tension. The damage initiation and propagation in fiber bundles are simulated using three-dimensional failure criteria and damage evolution law. A traction–separation law has been applied to predict the interfacial damage of fiber bundles. The proposed model is correlated and validated by the experimentally measured full field strain distributions and effective strength of the notched specimen. The progressive damage behavior of the fiber bundles is studied by examining the damage and stress contours at different loading stages. Parametric numerical studies are conducted to explore the role of modeling parameters and geometric characteristics on the internal damage behavior and global measured properties of the notched specimen. Moreover, the correlations of damage behavior, global stress–strain response, and the efficiency of the notched specimen are discussed in detail. The results of this paper deliver a throughout understanding of the damage behavior of braided composites and can help the specimen design of textile composites.


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