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A numerical and experimental study of the yield surfaces in cross shaped aluminium plates
Author(s) -
Olivito R. S.,
Stumpo P.,
Surace L.
Publication year - 1993
Publication title -
strain
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.477
H-Index - 47
eISSN - 1475-1305
pISSN - 0039-2103
DOI - 10.1111/j.1475-1305.1993.tb00841.x
Subject(s) - yield surface , aluminium , materials science , yield (engineering) , offset (computer science) , deformation (meteorology) , hardening (computing) , composite material , strain hardening exponent , structural engineering , constitutive equation , finite element method , computer science , engineering , layer (electronics) , programming language
The behaviour of metals can be described through knowledge of its yield surfaces and constitutive relationships. Starting from this point, numerical and experimental analyses were developed about the yield surface evolution in aluminium cross shaped sheets subjected to incremental hardening. The results of using both the Szczepinski & Miastkowski experimental technique and an F.E.M. code for solving non‐linear stress and strain problems, which uses a macro‐programming language, were compared. The influence of the chosen offset and of the loading path on the shape and evolution of the yield surfaces were analysed. The determination of such surfaces and their evolution with the increase in plastic deformation is still of great importance.