SEDL / STP / STP1366-EB / STP12448S

An Investigation into the Origin and Nature of the Slope and x-axis Intercept of the Shear Punch-Tensile Yield Strength Correlation using Finite Element Analysis

Hankin, GL
Graduate Student and Professor, I.P.T.M.E., Loughborough University, Leicestershire,

Toloczko, MB
Graduate Student, Washington State University, Pullman, WA

Johnson, KI
Senior research engineer, Staff engineer, Senior staff scientist, Senior staff scientist, and Development engineer, Pacific Northwest National Laboratory, Richland, WA

Khaleel, MA
Senior research engineer, Staff engineer, Senior staff scientist, Senior staff scientist, and Development engineer, Pacific Northwest National Laboratory, Richland, WA

Hamilton, ML
Senior research engineer, Staff engineer, Senior staff scientist, Senior staff scientist, and Development engineer, Pacific Northwest National Laboratory, Richland, WA

Garner, FA
Senior research engineer, Staff engineer, Senior staff scientist, Senior staff scientist, and Development engineer, Pacific Northwest National Laboratory, Richland, WA

Davies, RW
Senior research engineer, Staff engineer, Senior staff scientist, Senior staff scientist, and Development engineer, Pacific Northwest National Laboratory, Richland, WA

Faulkner, RG
Graduate Student and Professor, I.P.T.M.E., Loughborough University, Leicestershire,

Pages: 11    Published: Jan 2000

Download this paper for $25 PDF (256K)          View License Agreement
Abstract

Recent studies have shown that for a variety of unirradiated and irradiated materials, a slope of ∼2 is obtained for a correlation between yield in a shear punch test and yield in a uniaxial tensile test. Application of the von Mises yield criterion would predict a slope of √3. A finite element model (FEM) of the shear punch test was developed to aid in understanding the experimentally obtained slope of ∼2. FEM simulations of the shear punch test were conducted using stress-strain data from uniaxial tensile tests on 316 stainless steel in four initial cold-work conditions. A correlation was developed between the FEM-evaluated effective shear yield strength and the experimentally-evaluated uniaxial yield strength. The slope from this correlation was found to be nearly the same as for the slope from the correlation between the experimentally-evaluated effective shear yield strength and the experimentally-evaluated uniaxial yield strength. The finite element model showed that stresses other than pure shear exist in a specimen during a shear punch test, and these other stresses may explain why the slope of the experimental yield strength correlation is different than √3.