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首页> 外文会议>AMD-vol.256; American Society of Mechanical Engineers(ASME) International Mechanical Engineering Congress and Exposition; 20051105-11; Orlando,FL(US) >HIGH STRAIN RATE TENSILE BEHAVIOR OF CARBON FIBER REINFORCED ALUMINUM LAMINATES
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HIGH STRAIN RATE TENSILE BEHAVIOR OF CARBON FIBER REINFORCED ALUMINUM LAMINATES

机译：碳纤维增强铝层压板的高应变率拉伸性能

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摘要

In this paper, loading and loading-unloading tests of carbon fiber reinforced aluminum laminates (CRALL) have been carried out in a tensile impact apparatus, and quasi-static tensile tests have been performed on a MTS-810 machine. Complete stress-strain curves of composite in the strain rate range from 0.001-1200 1/s have been obtained. Experimental results show that CRALL composite is a strain rate sensitivity material, the tensile strength and failure strain both increased with increasing strain rate. A linear strain hardening model has been combined with Weibull distribution function to establish a constitutive equation for CRALL. The simulated stress-strain curves from model are in good agreement with the test data. The analysis of the model shows that the Weibull scale parameter, σ_0, increased with increasing strain rate, but Weibull shape parameter, β , can be regarded as a constant.
机译：在本文中，碳纤维增强铝层压板（CRALL）的装卸测试已在拉伸冲击设备中进行，准静态拉伸测试已在MTS-810机器上进行。已获得应变率范围为0.001-1200 1 / s的复合材料的完整应力-应变曲线。实验结果表明，CRALL复合材料是一种应变率敏感材料，其拉伸强度和破坏应变均随应变率的增加而增加。将线性应变硬化模型与Weibull分布函数相结合，以建立CRALL的本构方程。模型模拟的应力-应变曲线与试验数据吻合良好。对模型的分析表明，威布尔尺度参数σ_0随着应变率的增加而增加，但威布尔形状参数β可以视为常数。

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