Effect of stacking sequence on multi‐point low‐velocity impact and compression after impact damage mechanisms of UHMWPE composites

2021 ◽  
Author(s):  
Jian An Wu ◽  
Zhongwei Zhang ◽  
Xiaoqing Dai ◽  
Liqun Duan ◽  
Yuan Lin ◽  
...  
Keyword(s):  
Impact Damage ◽  
Low Velocity Impact ◽  
Stacking Sequence ◽  
Low Velocity ◽  
Damage Mechanisms ◽  
Velocity Impact ◽  
Compression After Impact ◽  
Uhmwpe 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

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).

Low velocity impact and compression after impact behaviour of polyester pin-reinforced foam filled honeycomb sandwich panels

2021 ◽  
pp. 109963622199818
Author(s):  
RS Jayaram ◽  
VA Nagarajan ◽  
KP Vinod Kumar
Keyword(s):  
Impact Damage ◽  
Sandwich Panels ◽  
Low Velocity Impact ◽  
Low Velocity ◽  
Velocity Impact ◽  
Damage Area ◽  
Compression After Impact ◽  
Honeycomb Sandwich ◽  
Foam Filled ◽  
The Impact

Hybridization of sandwich panels and their different components have drawn huge attention due to the significant improvement in their attributes. Hybrid core of ‘Polyester Pin-reinforced Foam filled Honeycomb Sandwich panels’ (PFHS) were fabricated and compared with unreinforced ‘Foam filled Honeycomb Sandwich panels’ (FHS) in terms of low velocity impact and Compression After Impact (CAI) performance. The impact damage area was calculated by employing MATLAB image processing technique. Incorporating through thickness pins for connecting faces and core is an effectual way to improve interfacial bonding, specific bending stiffness and also imparts out of plane properties for sandwich panels. The low velocity impact tests performed on the sandwich panels revealed that the polyester pin reinforcement in foam filled honeycomb sandwich panel improved the load bearing capacity, total absorbed energy and reduced the impact damage area significantly. In CAI test, debond, wrinkling of face sheet, and buckling of face sheet and core are the major modes of failure. The addition of the pins enhanced the compressive strength for all the impact energy levels.

Low-velocity impact damage on dispersed stacking sequence laminates. Part I: Experiments

2009 ◽  
Vol 69 (7-8) ◽  
pp. 926-936 ◽  
Author(s):  
C.S. Lopes ◽  
O. Seresta ◽  
Y. Coquet ◽  
Z. Gürdal ◽  
P.P. Camanho ◽  
...  
Keyword(s):  
Impact Damage ◽  
Low Velocity Impact ◽  
Stacking Sequence ◽  
Low Velocity ◽  
Velocity Impact
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