Title of article :
Tensile deformation behavior of stainless steel clad aluminum bilayer sheet
Author/Authors :
Choi، نويسنده , , Shi-Hoon and Kim، نويسنده , , Keun-Hwan and Oh، نويسنده , , Kyu Hwan and Lee، نويسنده , , Dong Nyung Lee، نويسنده ,
Issue Information :
روزنامه با شماره پیاپی سال 1997
Pages :
8
From page :
158
To page :
165
Abstract :
The deformation behavior of stainless steel clad aluminum sheet under uniaxial tension has been investigated. The warping phenomenon have been observed and the radius of curvature decreased with increasing uniaxial strain. The warping has been analyzed by an analytical method and FEM. A difference in plastic strain ratio of component layers of the bilayer sheet gives rise to warping of the tensile specimen. The analyzed radii of curvature of the warped specimens are in good agreement with the measured data. The transverse stresses developed in the component layers have been analyzed based on the assumption of an isostrain model and by the FEM in which the warping has been taken into account. The transverse stresses calculated by the FEM are lower than those by the isostrain hypothesis due to stress relaxation by the warping. The transverse stresses are negligible compared with the longitudinal stresses. Consequently, the flow stresses of the bilayer sheet follow the rule of mixtures.
Keywords :
Stainless steel , Finite element method , Warping , tensile deformation , Aluminum bilayer
Journal title :
MATERIALS SCIENCE & ENGINEERING: A
Serial Year :
1997
Journal title :
MATERIALS SCIENCE & ENGINEERING: A
Record number :
2132573
Link To Document :
بازگشت