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首页> 外文会议>Proceedings of the American Society for Composites Twenty-Ninth technical conference, Proceedings of the 16th US-JAPAN conference on composite materials ASTM-D30 meeting >A Study of Compression and Shear Behavior of Two Types of Thermoplastic Composites
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A Study of Compression and Shear Behavior of Two Types of Thermoplastic Composites

机译：两种热塑性复合材料的压缩和剪切行为研究

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摘要

This paper summarizes an experimental effort to characterize the compression andrnin-plane shear behavior of two different thermoplastic composites reinforced withrnaramid fabrics and long glass fibers, respectively. The combined loading compressionrnand the V-notched rail shear test approaches described in the ASTM standards werernemployed in the investigation. For the compression behavior, it was observed that therntwo composite materials investigated exhibited similar stiffness behavior, as well asrnfailure mode. It was demonstrated that molding induced flow resulted in significantrnanisotropic behavior for the long fiber thermoplastic composite in compression. In thernin-plane shear test, the engineering shear strain was measured by two strain gaugesrnplaced at ±45° with respect to the loading direction. It was observed that bothrncomposites exhibited non-linear stress-strain behavior but failed at different strainrnvalues. In particular, the aramid fabric laminates did not break during testing.rnFurthermore, two representative failure modes were identified for the two types ofrncomposites tested.
机译：本文总结了一个实验工作，以表征两种分别由芳纶纤维织物和长玻璃纤维增​​强的热塑性复合材料的压缩和平面内剪切行为。在研究中采用了ASTM标准中描述的组合载荷压缩方法和V型槽口剪切试验方法。对于压缩行为，观察到所研究的两种复合材料表现出相似的刚度行为以及破坏模式。结果表明，模压诱导的流动导致长纤维热塑性复合材料在压缩时具有明显的各向异性。在平面热剪试验中，通过两个相对于载荷方向成±45°的应变仪测量工程剪切应变。观察到两种复合材料均表现出非线性应力-应变行为，但在不同的应变值下失效。特别是，芳纶织物层压板在测试过程中不会破裂。此外，对于两种测试的复合材料，确定了两种代表性的破坏模式。

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