X-ray microtomography analysis of the damage micromechanisms in 3D woven composites under low-velocity impact

2013 ◽  
Vol 45 ◽  
pp. 49-60 ◽  
Author(s):  
R. Seltzer ◽  
C. González ◽  
R. Muñoz ◽  
J. LLorca ◽  
T. Blanco-Varela
Keyword(s):  
Low Velocity Impact ◽  
Woven Composites ◽  
Low Velocity ◽  
Velocity Impact ◽  
X Ray ◽  
3D Woven Composites

scholarly journals Effect of off-axis angle on low-velocity impact and compression after impact damage mechanisms of 3D woven composites

2020 ◽  
Vol 192 ◽  
pp. 108672 ◽  
Author(s):  
Diantang Zhang ◽  
Yuanhui Gu ◽  
Zhongwei Zhang ◽  
Minghao Jia ◽  
Songlin Yue ◽  
...  
Keyword(s):  
Impact Damage ◽  
Low Velocity Impact ◽  
Woven Composites ◽  
Low Velocity ◽  
Damage Mechanisms ◽  
Velocity Impact ◽  
Compression After Impact ◽  
3D Woven Composites

Influence of Structure Unit and the Distribution on the Low-Velocity Impact Property of the 3D Woven Composites

2012 ◽  
Vol 502 ◽  
pp. 169-173
Author(s):  
Yan Qing Li ◽  
Jia Ying Sun ◽  
Wei Tian ◽  
Cheng Yan Zhu
Keyword(s):  
Impact Resistance ◽  
Impact Property ◽  
Low Velocity Impact ◽  
Woven Composites ◽  
Material Structure ◽  
Absorbed Energy ◽  
Low Velocity ◽  
Velocity Impact ◽  
3D Woven Composites ◽  
The Impact

In this paper, the low-velocity impact properties of the 3D woven composites were tested. Through the study on the relationship of absorbed energy and material structure, the impact resistance of the composites has been discussed. The research results show that the low-velocity impact resistance of quasi-orthogonal composites is the best, the low-velocity impact resistance of orthogonal composites is the worst and angle tangled of interlayer joint composites stand somewhere between the two. Adding quasi-orthogonal unit into the structure, the low-velocity impact property of the composites can be enhanced efficiently. On the other hand, if the unit distribution of the enforced fabric is changed, the break time and break point will be changed. But the effect on the total absorbed energy is not obvious.

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.

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