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| Titel: |
COUPLED THERMOELASTIC-PLASTIC STRESS ANALYSIS OF SOLIDS BY FINITE-ELEMENT METHOD |
| Auteur: |
Banas, A. Hsu, T. R. Sun, N. S. |
| Verschenen in: |
Journal of thermal stresses |
| Paginering: | Jaargang 10 (1987) nr. 4 pagina's 319-344 |
| Jaar: |
1987 |
| Inhoud: |
This paper presents a finite-element formulation of a coupled thermoelastic-plastic stress analysis of solid structures. The formulation is based on a selected phenomenological energy dissipation model and elastic-plastic constitutive equations for both isotropic and kinematic hardening schemes. Numerical illustrations involving this coupling effect on a uniaxially loaded solid rod and on a thick-walled cylinder subject to internal pressure are included, using assumed values of dissipation factors. Temperature rises induced by one mechanical load cycle in both cases were computed. Numerical results indicate that the maximum effective strain in the solids from an uncoupled analysis can be as much as 10% larger than that from a coupled analysis under the same mechanical load. Coupled thermomechanical analysis is thus considered to be significant. The present method may readily be incorporated into a thermoelastic-plastic finite-element analysis and used to predict the healing of machine components produced by permanent deformation induced by repeated mechanical load cycles. |
| Uitgever: |
Taylor & Francis |
| Bronbestand: |
Elektronische Wetenschappelijke Tijdschriften |
Details van artikel 2 van 8 gevonden artikelen
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