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首页> 外文期刊>Materials Science and Engineering. A, Structural Materials: Properties, Microstructure and Processing >High strain rate behavior of woven fabric composites under compressive loading
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High strain rate behavior of woven fabric composites under compressive loading

机译：压缩载荷下机织织物复合材料的高应变速率行为

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摘要

Investigations on high strain rate behavior of composites under compressive loading are presented. Compressive split Hopkinson pressure bar (SHPB) apparatus was used for the studies. Compressive properties of typical plain weave E-glass/epoxy and plain weave carbon/epoxy were evaluated along all the principal directions in the strain rate range of 680-2890 s~(-1). It is generally observed that the compressive strength is enhanced at high strain rate loading compared with that at quasi-static loading. During SHPB testing of the specimens, it was observed that the peak force obtained from the strain gage mounted on the transmitter bar is lower than the peak force obtained from the strain gage mounted on the incident bar. The explanation for this is provided based on stress wave attenuation studies.
机译：提出了复合材料在压缩载荷下高应变速率行为的研究。使用压缩分流霍普金森压力棒（SHPB）装置进行研究。在680-2890 s〜（-1）的应变速率范围内，沿所有主要方向评估了典型的平纹E-玻璃/环氧树脂和平纹碳/环氧树脂的压缩性能。通常观察到，与准静态载荷相比，高应变率载荷下的抗压强度有所提高。在对样本进行SHPB测试期间，观察到从安装在发射杆上的应变仪获得的峰值力低于从安装在入射杆上的应变仪获得的峰值力。基于应力波衰减研究提供了对此的解释。

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