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Yielding of plates with hardening and large deformations
Author(s) -
Eggers Hans,
Kröplin Bernd
Publication year - 1978
Publication title -
international journal for numerical methods in engineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.421
H-Index - 168
eISSN - 1097-0207
pISSN - 0029-5981
DOI - 10.1002/nme.1620120501
Subject(s) - finite element method , hardening (computing) , anisotropy , lagrange multiplier , mathematics , structural engineering , normality , backward euler method , yield (engineering) , mathematical analysis , materials science , euler equations , mathematical optimization , engineering , composite material , physics , statistics , layer (electronics) , quantum mechanics
A mixed finite element technique is used to study the influence of yielding on buckled plates. Orthogonal anisotropic hardening is determined solely by a yield condition, which is introduced into a mixed functional for the elastic plate by Lagrange Multipliers. The Euler equations of the constrained functional include Prager's normality rule. Numerical results are given for rectangular plates of different size calculated for various material properties.