WIT Press


An Implicit Integration Method For Solving Non-linear Problems In Mechanics Of Structures Under Complex Loading Histories

Price

Free (open access)

Paper DOI

10.2495/CMEM990361

Volume

22

Pages

10

Published

1999

Size

956 kb

Author(s)

M. Arzt, W. Brocks & R. Mohr

Abstract

An implicit integration method is discussed. This method allows for studying non- linear material behaviour, such as viscoplasticity. The material behaviour is de- scribed by so-called internal variables. The model applied here was developed by Lemaitre and Chaboche. The integration method is implemented in a user- subroutine in the commercial Finite-Element-Method package ABAQUS. The re- sults of a numerical analysis of the rotation of an aircraft turbine disk are presented. Cyclic loading conditions are studied, and the results are compared to numerical results found in literature. 1 Introduction Structures under cyclic loading conditions are studied. The inelastic behavio

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