Measurement of transverse stress and determination of yield stress for OFHC copper subjected to planar shock

FAN Chun-lei; HU Jin-wei; CHEN Da-nian; WANG Huan-ran; XIE Shu-gang

doi:10.11883/1001-1455(2008)02-0110-06

Volume 28 Issue 2

Sep. 2014

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FAN Chun-lei, HU Jin-wei, CHEN Da-nian, WANG Huan-ran, XIE Shu-gang. Measurement of transverse stress and determination of yield stress for OFHC copper subjected to planar shock[J]. Explosion And Shock Waves, 2008, 28(2): 110-115. doi: 10.11883/1001-1455(2008)02-0110-06

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Measurement of transverse stress and determination of yield stress for OFHC copper subjected to planar shock

doi: 10.11883/1001-1455(2008)02-0110-06

1.
Mechanics & Materials Science Research Center, Ningbo University, Ningbo 315211, Zhejiang, China

Publish Date: 2008-03-25

Abstract

Abstract

Planar shock wave experiments for OFHC copper were carried out, and the yield stresses of OFHC copper were obtained from the longitudinal and transverse stresses recorded by the manganin gauges. Numerical simulations of the planar shock tests for OFHC copper were performed by using the constructed seven constitutive models and compared with the experimental results. Constitutive models at high pressures and high strain rates were discussed. Results indicate that the Johnson-Cook or Zerilli-Armstrong constitutive models determined by the SHPB tests can not be applied to planar shock experiments.
- solid mechanics,
- yield stress,
- planar shock wave test,
- OFHC,
- manganin gauge

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