Experimental Investigation of Low Velocity Impact and Residual Compressive Properties of Composite Laminates Based on AE

2013 ◽  
Vol 345 ◽  
pp. 214-217
Author(s):  
Shi Yan ◽  
Ying Guo ◽  
Xia Mei Lu
Keyword(s):  
Composite Laminates ◽  
Fracture Process ◽  
Peak Frequency ◽  
Low Velocity Impact ◽  
Displacement Curve ◽  
Compressive Failure ◽  
Compressive Properties ◽  
Low Velocity ◽  
Velocity Impact ◽  
Fracture Processes

The low-velocity impact and residual compressive failure processes of composite laminate were investigated by the acoustic emission (AE) technique in this paper. The AE energy, amplitude, and the peak frequency were analyzed. At the same time, combining with the load-displacement curve varying feature, the compressive fracture processes were divided into different stages to deeply understand the damaged mechanisms of the composites. Results reveal that the behavior of AE parameters described well the fracture process of the composites.

scholarly journals Impact Response and Energy Distribution of Low Velocity Impact on Composite Laminates

2018 ◽  
Vol 74 (10) ◽  
pp. 207-214
Author(s):  
Bin Zhou ◽  
Xiaopeng Shi ◽  
Lei Wang ◽  
Junjie Yin ◽  
Yue Liu ◽  
...  
Keyword(s):  
Energy Distribution ◽  
Composite Laminates ◽  
Impact Response ◽  
Low Velocity Impact ◽  
Low Velocity ◽  
Velocity Impact

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.

Sign in / Sign up

Export Citation Format

Share Document