A mesoscale fatigue progressive damage model for 3D woven composites

2021 ◽  
pp. 106455
Author(s):  
Junhua Guo ◽  
Weidong Wen ◽  
Hongjian Zhang ◽  
Haitao Cui
Keyword(s):  
Damage Model ◽  
Woven Composites ◽  
Progressive Damage ◽  
3D Woven Composites ◽  
Progressive Damage Model

A progressive damage model for 3D woven composites under compression

2018 ◽  
Vol 28 (6) ◽  
pp. 857-876 ◽  
Author(s):  
Huaiyu Lu ◽  
Licheng Guo ◽  
Gang Liu ◽  
Li Zhang
Keyword(s):  
Failure Modes ◽  
Damage Model ◽  
Woven Composites ◽  
Progressive Damage ◽  
Misalignment Angle ◽  
Woven Composite ◽  
Damage Initiation ◽  
3D Woven Composites ◽  
Progressive Damage Model ◽  
Transverse Failure

A progressive damage model is proposed to investigate the damage initiation and evolution of 3D woven composites under uniaxial compression at a micromechanical level. The typical compressive experiments were carried out. Based on the observations, the compression failure modes of 3D woven composites mainly include fiber kinking, transverse failure of fiber tow, matrix fracture, and interfacial debonding. The initial damage criteria are according to the physically based failure criteria for the fiber kinking, the Puck criteria for the transverse failure of fiber tow, and the maximum stress criterion for the matrix. The damage of fiber tow–matrix interfacial is simulated through cohesive contact. Particularly, the fiber’s initial misalignment angle is taken into account in the damage model. The simulated compression results agree well with the experimental ones. The compressive stress–strain response of the 3D woven composite is forecasted. The damage evolution of each constituent of the 3D woven composite is obtained. The results show that the influence of the fiber’s initial misalignment angle on the compression strength of the 3D woven composite needs to be considered.

A progressive damage model for three-dimensional woven composites under ballistic impact loading

2019 ◽  
Vol 1 (1) ◽  
pp. 015028
Author(s):  
Yongqi Yang ◽  
Li Zhang ◽  
Licheng Guo ◽  
Suyang Zhong ◽  
Jiuzhou Zhao ◽  
...  
Keyword(s):  
Impact Loading ◽  
Damage Model ◽  
Three Dimensional ◽  
Ballistic Impact ◽  
Woven Composites ◽  
Progressive Damage ◽  
Progressive Damage Model

scholarly journals A Strain Rate Dependent Progressive Damage Model for Carbon Fiber Woven Composites under Low Velocity Impact

2021 ◽  
Vol 2101 (1) ◽  
pp. 012073
Author(s):  
Xueyao Hu ◽  
Jiaojiao Tang ◽  
Wei Xiao ◽  
Kepeng Qu
Keyword(s):  
Strain Rate ◽  
Damage Model ◽  
Low Velocity Impact ◽  
Woven Composites ◽  
Progressive Damage ◽  
Low Velocity ◽  
Velocity Impact ◽  
Rate Dependent ◽  
Plane Direction ◽  
Progressive Damage Model

Abstract A progressive damage model was presented for carbon fiber woven composites under low velocity impact, considering the strain rate sensitivity of both mechanical properties and failure mechanisms. In this model, strain rate dependency of elastic modulus and nominal strength along in-plane direction are considered. Based on the Weibull distribution, stiffness progressive degradation is conducted by introducing strain rate dependent damage variables for distinct damage modes. With the model implemented in ABAQUS/Explicit via user-defined material subroutine (VUMAT), the mechanical behavior and possible damage modes of composites along in-plane direction can be determined. Furthermore, a bilinear traction separation model and a quadratic stress criterion are applied to predict the initiation and evolution of interlaminar delamination. Comparisons are made between the experimental results and numerical simulations. It is shown that the mechanical response and damage characteristics under low velocity impact, such as contact force history and delamination, are more consistent with the experimental results when taken the strain rate effect into consideration.

Prediction of non-linear mechanical behavior of shear deformed twill woven composites based on a multi-scale progressive damage model

2019 ◽  
Vol 224 ◽  
pp. 111019
Author(s):  
Yeon-Taek Hwang ◽  
Kyung-Hee Choi ◽  
Jae-In Kim ◽  
Jaeyoung Lim ◽  
Byeunggun Nam ◽  
...  
Keyword(s):  
Mechanical Behavior ◽  
Damage Model ◽  
Woven Composites ◽  
Progressive Damage ◽  
Multi Scale ◽  
Non Linear ◽  
Progressive Damage Model

A novel mesoscopic progressive damage model for 3D angle-interlock woven composites

2020 ◽  
Vol 185 ◽  
pp. 107894 ◽  
Author(s):  
Tao Zheng ◽  
Licheng Guo ◽  
Jinzhao Huang ◽  
Gang Liu
Keyword(s):  
Damage Model ◽  
Woven Composites ◽  
Progressive Damage ◽  
Progressive Damage Model

Progressive damage characteristics of screwed single-lap CFRPI-metal joint subjected to tensile loading at RT and 350°C

2021 ◽  
pp. 002199832098559
Author(s):  
Yun-Tao Zhu ◽  
Jun-Jiang Xiong ◽  
Chu-Yang Luo ◽  
Yi-Sen Du
Keyword(s):  
Damage Model ◽  
Tensile Loading ◽  
Tensile Tests ◽  
Displacement Curve ◽  
Progressive Damage ◽  
Damage Characteristics ◽  
Metal Joint ◽  
Static Tensile ◽  
Strength And Stiffness ◽  
Progressive Damage Model

This paper outlines progressive damage characteristics of screwed single-lap CFRPI-metal joints subjected to tensile loading at RT (room temperature) and 350°C. Quasi-static tensile tests were performed on screwed single-lap CCF300/AC721-30CrMnSiA joint at RT and 350°C, and the load versus displacement curve, strength and stiffness of joint were gauged and discussed. With due consideration of thermal-mechanical interaction and complex failure mechanism, a modified progressive damage model (PDM) based on the mixed failure criterion was devised to simulate progressive damage characteristics of screwed single-lap CCF300/AC721-30CrMnSiA joint, and simulations correlate well with experiments. By using the PDM, the effects of geometry dimensions on mechanical characteristics of screwed single-lap CCF300/AC721-30CrMnSiA joint were analyzed and discussed.

Comparison of progressive damage simulation of 3D woven composites between voxel and conformal discretization models

2021 ◽  
pp. 103860
Author(s):  
Tao Zheng ◽  
Licheng Guo ◽  
Ziheng Tang ◽  
Tongtong Wang ◽  
Zhixing Li
Keyword(s):  
Woven Composites ◽  
Progressive Damage ◽  
3D Woven Composites ◽  
Damage Simulation

scholarly journals A progressive damage model of composite laminates under low-velocity impact

2021 ◽  
Vol 39 (1) ◽  
pp. 37-45
Author(s):  
Junjie Zhou ◽  
Shengnan Wang
Keyword(s):  
Composite Laminates ◽  
Impact Force ◽  
Damage Model ◽  
Low Velocity Impact ◽  
Progressive Damage ◽  
Low Velocity ◽  
Damage Development ◽  
Velocity Impact ◽  
Progressive Damage Model ◽  
Matrix Damage

In this paper, a progressive damage model for studying the dynamic mechanical response and damage development of composite laminates under low-velocity impact was established. The model applied the Hashin and Hou failure criteria to predict the initiation of intra-laminar damage (fiber and matrix damage); a linear degradation scheme combined with the equivalent displacement method was adopted to simulate the damage development; a cohesive zone model with the bilinear traction-separation relationship was used to predict delamination. A user material subroutine VUMAT was coded, and the simulation analysis of carbon fiber reinforcement composite laminates subjected to 25 J impact was performed via commercial software ABAQUS. The predicted impact force-time curve, impact force-displacement curve, and damage distribution contours among the layers were in a good agreement with the experimental, which verified the proposed model. According to the simulation results, the fiber damage and matrix damage were analyzed, and the expansion of delamination was discussed.

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