Adaptive Multi-Fidelity (AMF) Modelling of Progressive Damage in Notched Composite Laminates

2021 ◽  
pp. 106790
Author(s):  
K.H. Leong ◽  
J. Zhi ◽  
H.P. Lee ◽  
V.B.C. Tan ◽  
T.E. Tay
Keyword(s):  
Composite Laminates ◽  
Progressive Damage

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.

Evaluation of progressive damage of nano-modified composite laminates under repeated impacts

2016 ◽  
Author(s):  
Ermias G. Koricho ◽  
Oleksii Karpenko ◽  
Anton Khomenko ◽  
Mahmoodul Haq ◽  
Gary L. Cloud ◽  
...  
Keyword(s):  
Composite Laminates ◽  
Progressive Damage ◽  
Repeated Impacts
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