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An experimental study on the tensile behavior of Kevlar fiber reinforced aluminum laminates at high strain rates

Material type: TextSeries: ; Materials Science and Engineering: A, 381(1-2), p.355-362, 2004Contained works:
  • Zhoua, Y
  • Wang, Y
  • Mallick, P.K
Subject(s): Online resources: Abstract: In this paper, tensile behavior of Kevlar fiber reinforced aluminum laminates (KRALL)has been determined at strain rates 100, 500 and 1300 s-1. Yield strength, tensile strength and failure strain of the composite all increased with increasing strain rate. The application of pre-stress on KRALL increased the yield strength, decreased the failure strain, but had no effect on the tensile strength. A linear damage model has been combined with Weibull distribution function to establish a constitutive equation for KRALL. The results show that strength of KRALL obeyed the bimodal Weibull distribution, and the strength of pre-stressed KRALL obeyed unimodal Weibull istribution.
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In this paper, tensile behavior of Kevlar fiber reinforced aluminum laminates (KRALL)has been determined at strain rates 100, 500 and 1300 s-1. Yield strength, tensile strength and failure strain of the composite all increased with increasing strain rate. The application of pre-stress on KRALL increased the yield strength, decreased the failure strain, but had no effect on the tensile strength. A linear damage model has been combined with Weibull distribution function to establish a constitutive equation for KRALL. The results show that strength of KRALL obeyed the bimodal Weibull distribution, and the strength of pre-stressed KRALL obeyed unimodal Weibull istribution.

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