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On the Thermoelastic Analysis of lmpact Damage on Foam-Cored Sandwich-Construction Composites

机译：泡沫芯夹芯结构复合材料冲击损伤的热弹性分析

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摘要

The paper describes some initial thermoelastic work carried out on impact damaged coupon specimens. The specimens are of a sandwich construction and are made up of a single skin of woven glass material and a Coremat polyester foam core in a polyester matrix. The specimens were subJected to controlled levels of impact damage and thermoelastic readings were taken from both undamaged and damaged specimens. A damage severity parameter based on thermoelastic signal is introduced. The thermoelastic data is presented as a function of this parameter, in order to assess the sensitivity of the response for different levels of impact.
机译：本文介绍了在冲击损坏的试样样本上进行的一些初始热弹性工作。样品为三明治结构，由编织玻璃材料的单层表皮和聚酯基质中的Coremat聚酯泡沫芯组成。样品受冲击破坏的控制水平，并且从未损坏和损坏的样品中获取热弹性读数。介绍了基于热弹性信号的损伤严重性参数。呈现热弹性数据作为该参数的函数，以便评估不同冲击程度时响应的敏感性。

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