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.

Study on the Low-Velocity Impact Behavior of CFRP with Nanoclay-Filled Epoxy Matrix

2008 ◽  
Vol 47-50 ◽  
pp. 1205-1208 ◽  
Author(s):  
Iqbal Kosar ◽  
Khan Shafi Ullah ◽  
Jang Kyo Kim ◽  
Arshad Munir
Keyword(s):  
Impact Damage ◽  
Low Velocity Impact ◽  
Impact Behavior ◽  
Low Velocity ◽  
Damage Resistance ◽  
Velocity Impact ◽  
Compression After Impact ◽  
The Impact ◽  
Carbon Fiber Epoxy ◽  
Insight Into

The influence of nanoclay on the impact damage resistance of carbon fiber-epoxy (CFRP) composites has been investigated using the low-velocity impact and compression after impact tests. The load-energy vs time relations were analyzed to gain insight into the damage behaviors of the materials. Compression-after-impact (CAI) test was performed to measure the residual compressive strength. The CFRPs containing organoclay brought about a significant improvement in impact damage resistance and damage tolerance. The composites containing organoclay exhibited an enhanced energy absorption capability with less damage areas and higher CAI strengths compared to those made from neat epoxy. A 3wt% phr was shown to be an optimal content with the highest damage resistance.

Studies on Low-Velocity Impact Damage of Metal Ion Implanted Composite Laminates

2011 ◽  
Vol 311-313 ◽  
pp. 37-42
Author(s):  
Li Yan ◽  
Xue Feng An ◽  
Hai Chao Cui ◽  
Xiao Su Yi
Keyword(s):  
Ion Implantation ◽  
Composite Laminates ◽  
Metal Ion ◽  
Impact Damage ◽  
Low Velocity Impact ◽  
Low Velocity ◽  
Velocity Impact ◽  
Compression After Impact ◽  
Dent Depth ◽  
Metal Ion Implantation

composite laminates, metal ion implantation, low-velocity impact damage, BVID Abstract. Metal ion implantation was carried out on composite laminates to modify the surface properties, so that after low-velocity impact barely visible impact damage (BVID) was easy to realize. Surface topography of laminates was observed by SEM. Microhardness and drop-weight impact was tested on composite laminates. The results showed that after metal ion implantation microhardness of laminates increased obviously and resin was easy to generate plastic deforming. Dent depth had been improved so as to realize visible impact damage more easily. And compression-after-impact (CAI) had not decreased. Comparison with Ti ion implantation, Cu ion implantation had better influence on realizing visible impact damage (VID).

Sign in / Sign up

Export Citation Format

Share Document