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A DAE approach for solving the elasto-plastic boundary value problem

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Author

Summary, in English

In this study an alternative integration scheme for elasto-plasticity based on a Diagonal Implicit Runge-Kutta (DIRK) scheme originally proposed by Ellsiepen (1999) is investigated. In contrast to clasical approaches, the DIRK scheme is applied to the balance of momentum as well as the constitutive evolution equations. The presented numerical algorithm is applied to an elastoplastic

bounadry value problem and the examples reveal that a significant increase in accuracy can be obtained at virtually no cost using the DIRK scheme.

Department/s

Publishing year

2012

Language

English

Document type

Conference paper

Topic

  • Mechanical Engineering

Keywords

  • Differential Algebraic Equation
  • DAE
  • DIRK
  • Elasto-Plasticity
  • Finite strains
  • Damage

Conference name

Nordic Seminar On Computional Mechanics

Conference date

2011-11-03 - 2011-11-04

Conference place

Helsingfors, Finland

Status

Published