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首页> 外文期刊>Arabian Journal for Science and Engineering >Effect of the Impact Velocity on the Dynamic Response of E-Glass/Epoxy Laminated Composites
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Effect of the Impact Velocity on the Dynamic Response of E-Glass/Epoxy Laminated Composites

机译：冲击速度对电子玻璃/环氧层压复合材料动力响应的影响

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Abstract The present paper describes the dynamic response of E-glass/epoxy laminated composite structures under the variation of the aluminum projectile velocity from 0.54 to 3.1 m/s. The results are obtained using a Hertzian contact law and a drop weight impact machine and they are presented for three different crossply laminates ([O_2/90_6/0_2], [0_3/90_4/0_3] and [0_4/90_2/0_4]). The objective of this research is to determine the influence of projectile velocities on the impact response of the clamped laminated plates. The contact law used in the theoretical analysis is based on the combination of the dynamic and static solutions of the impact problem of two elastic bodies. In order to determine the stiffness of the composite plates, the system was represented by a spring-mass model. Particular attention was given during the comparison of the theoretical and experimental results. The difference between the two results was observed higher every time that the impact velocity increased. However, the application of the theoretical model is found to be an efficient guide for the experimental results validation.
机译：摘要本文描述了铝/玻璃纤维/环氧树脂层压复合结构在铝弹丸速度从0.54至3.1 m / s变化时的动力响应。使用赫兹接触定律和落锤冲击机获得结果，并针对三种不同的交叉层压材料（[O_2 / 90_6 / 0_2]，[0_3 / 90_4 / 0_3]和[0_4 / 90_2 / 0_4]）显示结果。本研究的目的是确定弹丸速度对夹层板冲击响应的影响。理论分析中使用的接触定律基于两个弹性体碰撞问题的动态和静态解的组合。为了确定复合板的刚度，该系统由弹簧质量模型表示。在理论和实验结果的比较中给予了特别的关注。每当冲击速度增加时，就会观察到两个结果之间的差异更高。然而，理论模型的应用被发现是验证实验结果的有效指南。

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