Experimental and Computational Analysis of Low-Velocity Impact on Carbon-, Glass- and Mixed-Fiber Composite Plates

被引:22
作者
AlOmari, Ahmed S. [1 ]
Al-Athel, Khaled S. [1 ]
Arif, Abul Fazal M. [2 ]
Al-Sulaiman, Faleh. A. [1 ]
机构
[1] King Fahd Univ Petr & Minerals, Mech Engn Dept, Dhahran 31261, Saudi Arabia
[2] McMaster Univ, McMaster Mfg Res Inst, Hamilton, ON L8S 4L8, Canada
来源
JOURNAL OF COMPOSITES SCIENCE | 2020年 / 4卷 / 04期
关键词
composite plate; carbon fiber; glass fiber; impact; finite elements; STACKING-SEQUENCE; DAMAGE TOLERANCE; BEHAVIOR; PREDICTION;
D O I
10.3390/jcs4040148
中图分类号
TB33 [复合材料];
学科分类号
摘要
One of the problems with composites is their weak impact damage resistance and post-impact mechanical properties. Composites are prone to delamination damage when impacted by low-speed projectiles because of the weak through-thickness strength. To combat the problem of delamination damage, composite parts are often over-designed with extra layers. However, this increases the cost, weight, and volume of the composite and, in some cases, may only provide moderate improvements to impact damage resistance. The selection of the optimal parameters for composite plates that give high impact resistance under low-velocity impact loads should consider several factors related to the properties of the materials as well as to how the composite product is manufactured. To obtain the desired impact resistance, it is essential to know the interrelationships between these parameters and the energy absorbed by the composite. Knowing which parameters affect the improvement of the composite impact resistance and which parameters give the most significant effect are the main issues in the composite industry. In this work, the impact response of composite laminates with various stacking sequences and resins was studied with the Instron 9250G drop-tower to determine the energy absorption. Three types of composites were used: carbon-fiber, glass-fiber, and mixed-fiber composite laminates. Also, these composites were characterized by different stacking sequences and resin types. The effect of several composite structural parameters on the absorbed energy of composite plates is studied. A finite element model was then used to find an optimized design with improved impact resistance based on the best attributes found from the experimental testing.
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页数:19
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