Viscoplastic Materials - Maple Application Center
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Viscoplastic Materials

Author
: Prof. Josef Betten

Abstract

This worksheet is concerned with the linear and nonlinear theory of viscoplasticity. For example, in the following the rate-dependent deformation of a Fe-0.05 weight percent carbon steel at temperatures in excess of a homologous temperature of 0.5 has been discussed in coparison with suitable experiments.

   In order to describe the tensile tests at elevated temperatures, a viscoplastic constitutive eqution with three parametrs has been proposed. These parameters can be determined by using the LEVENBERG-MARQUARDT algorithm.

 

Keywords:  linear and nomlinear viscoplasticity; tensile tests at elevated temperature; viscoplastic constitutive equation; parameter identification; L-one and L-two error norms     

 

Application Details

Publish Date: January 27, 2010
Created In: Maple 12
Language: English

Tags

mechanics

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