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Prediction of stored energy in polycrystalline materials during cyclic loading

In English

Författare

Summary, in English

The effect of initial texture on the stored energy is investigated. Uniaxially loaded polycrystalline materials with initial textures based on the Goss component and

the Brass component are analyzed. For reference purposes a single crystal and an initial isotropic crystal orientation distribution are also analyzed. Special attention is directed at the thermomechanical behavior of polycrystalline material during cyclic loading, the temperature evolution and change in stored energy are studied. Cyclic loading of Cook’s membrane is also considered. The simulations are done using a rate-dependent crystal plasticity model for large deformations formulated within a thermodynamic framework. It is shown that incorporation of the latent-hardening into the Helmholtz free energy function and use of evolution laws of appropriate form allows a thermodynamically consistent heat generation due to plastic work.

Avdelning/ar

Publiceringsår

2008

Språk

Engelska

Sidor

1570-1586

Publikation/Tidskrift/Serie

International Journal of Solids and Structures

Volym

45

Issue

6

Dokumenttyp

Artikel i tidskrift

Förlag

Elsevier

Ämne

  • Mechanical Engineering

Nyckelord

  • Texture
  • Crystal plasticity
  • Heat generation

Status

Published

ISBN/ISSN/Övrigt

  • ISSN: 0020-7683