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首页> 外文会议>EU-Korea Conference on Science and Technology >Experimental Investigation on the Behaviour ofCFRP Laminated Composites under Impactand Compression After Impact (CAI)
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Experimental Investigation on the Behaviour ofCFRP Laminated Composites under Impactand Compression After Impact (CAI)

机译：碰撞后抗冲击性复合材料的行为的实验研究（CAI）

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The importance of understanding the response of structural composites to impact andCM cannot be overstated to develop analytical models for impact damage and CM strengthpredictions. This paper presents experimental findings observed from quasi-static lateral loadtests, low velocity impact tests, CAI strength and open hole compressive strength tests using3mm thick composite plates ([451-45/0/90]_(3s)— IM7/8552). The conclusion is drawn that dam-age areas for both quasi-static lateral load and impact tests are similar and the curves of severaldrop weight impacts with varying energy levels (between 5.4J and 18.7J) follow the staticcurve well. In addition, at a given energy the peak force is in good agreement between the staticand impact cases. From the CM strength and open hole compressive strength tests, it is identi-fied that the failure behaviour of the specimens was very similar to that observed in laminatedplates with open holes under compression loading. The residual strengths are in good agree-ment with the measured open hole compressive strengths, considering the impact damage siteas an equivalent hole. The experimental findings suggest that simple analytical models for theprediction of impact damage area and CM strength can be developed on the basis of the failuremechanism observed from the experimental tests.
机译：理解结构复合材料对冲ANDCM的响应的重要性不能夸大，以开发用于影响损伤和CM强度的分析模型。本文介绍了使用3mm厚复合板（[451-45 / 0/90] _（3S） - IM7 / 8552）的准静态横向载荷最高载荷最高载荷，低速冲击试验，CAI强度和开孔抗压强度试验的实验结果。得出的结论是，准静态横向载荷和冲击试验的坝时面积类似，几种重量影响与不同能量水平（5.4J和18.7J之间）的影响曲线遵循静电井。另外，在给定的能量下，峰值力在史蒂达和影响案例之间处于良好的一致性。从CM强度和开孔抗压强度试验，它是识别的，即样品的故障行为与在压缩负载下的具有开口孔中观察到的。考虑到撞击损伤位置，残留强度与测得的开孔抗压强度良好的普通符合测量的开孔抗压强度。实验结果表明，基于从实验试验观察到的故障造影，可以开发对冲击损伤区域和CM强度的简单分析模型。

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