Significance of Yield Surface Corner-Like Effects in Inelastic Stability Solutions

by Donald W. White, Purdue Univ, United States,

Document Type: Proceeding Paper

Part of: Serviceability and Durability of Construction Materials

Abstract: This paper presents the author's experiences with finite element prediction of the inelastic stability of steel plate structures. The implications of linear versus nonlinear flow theories of plasticity for the modeling of inelastic stability are addressed. Specifically, the poor performance of linear flow theory for prediction of inelastic stability in certain types of problems is discussed. Possible solutions to the problem through use of phenomenological corner theories are reviewed.

Subject Headings: Linear flow | Steel structures | Inelasticity | Steel plates | Structural stability | Nonlinear analysis | Finite element method | Plasticity

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