Response Behavior of CFRP/Steel Hybrid Plates under Low-Velocity Impact Bending Load
Response Behavior of CFRP/Steel Hybrid Plates under Low-Velocity Impact Bending Load
复制标题
CFRP/钢混合板低速冲击弯曲载荷下的响应行为
DOI：
10.11395/jjsem.15.194
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发表时间：
2015
期刊：
影响因子：
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通讯作者：
金 炯秀，邉 吾一，青木 義男
中科院分区：
文献类型：
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作者：
植村 真也;尾上 哲治;瀧宮 和男;金 炯秀，邉 吾一，青木 義男
碳纤维增强塑料（CFRP）层叠体由于具有比强度、比刚性等优异的特性而被用于各种工业领域。在汽车制造中使用CFRP可以显著降低汽车重量，从而提高车辆里程以及减少CO2排放。另一方面，在汽车结构制造中使用CFRP时，还应澄清碰撞情况下的乘客安全问题。本文研究了由一种钢和三种CFRP层合板组成的CFRP/钢混杂板在低速冲击弯曲载荷下的响应特性和能量吸收特性。我们在三点弯曲的边界条件下进行了落锤冲击试验;试验涉及从1.5 m的高度落下冲击器，使冲击器在冲击前的速度约为20 km/h。在冲击响应行为和吸收冲击能量方面，UD-0试样表现出比其他试样更好的性能。
Carbon fiber reinforced plastic (CFRP) laminates are used in various industrial fields because they have excellent properties such as a specific strength and a specific stiffness. The use of CFRP in the manufacture of automobiles can lead to a significant reduction in automobile weight, thereby improving the vehicle mileage as well as reducing CO2 emissions. On the other hand, the issue of passenger safety in case of collisions should also be clarified when employing CFRP in the fabrication of automotive structures. The objective of this study is to investigate the response behavior and energy absorption characteristics of CFRP/Steel hybrid plates which consisted of a steel and three types of CFRP laminates under low-velocity impact bending load. We performed drop weight impact tests under the boundary condition of three point bending; the tests involved dropping an impactor from a height of 1.5 m so that the impactor speed just before impact was approximately 20 km/h. With regard to the impact response behavior and absorbed impact energy, the UD-0 specimen showed better performance than the other specimens.