J Shanghai Jiaotong Univ Sci

J Shanghai Jiaotong Univ Sci ›› 2016, Vol. 21 ›› Issue (5): 562-568.doi: 10.1007/s12204-016-1763-7

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Investigation of the capabilities of yield functions on describing the deformation behavior of 5754O aluminum alloy sheet under combined loading paths

Wang H.; Liu Y.; Chen Z.; Wan M.; Nie H.   

  1. School of Mechanical and Materials Engineering, North China University of Technology, Beijing, 100144, China; School of Mechanical Engineering and Automation, Beihang University, Beijing, 100191, China
  • Published:2025-06-27

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Abstract: The combined loading tests of 5754O aluminum alloy sheet are used to verify the yield function. Three yield functions are implemented into the commercial finite element model (FEM) code ABAQUS as a user material subroutine UMAT for the FEM simulation of the combined loading tests. The comparison of the simulating and experimental results shows that the modified Yld2000-2d yield function can describe the mechanical behavior of 5754O aluminum alloy sheet under combined loading paths reasonably while other three yield functions do not. The performance of the modified Yld2000-2d yield function on describing the mechanical behavior under combined loading paths is analyzed in detail. It is concluded that the modified Yld2000-2d yield function can be adopted to describe the deformation behavior of 5754O aluminum alloy sheet for industrial applications. © 2016, Shanghai Jiaotong University and Springer-Verlag Berlin Heidelberg.

Key words: aluminum alloy sheet; combined loading; finite element model (FEM); yield function