A continuum damage model for weld heat affected zone under low cycle fatigue loading

A continuum damage model for weld heat affected zone under low cycle fatigue loading

In this paper, the Low Cycle Fatigue (LCF) damage evolution of weld Heat Affected Zone (HAZ) is studied by use of Continuum Damage Mechanics. Based on a continuum damage variable, D, on the effective stress concept and on thermodynamics, a continuum damage model of isotropic LCF is derived, and is u...

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Veröffentlicht in:Engineering fracture mechanics 1990-01, Vol.37 (4), p.825-829
Hauptverfasser: Wang, Tiejun, Lou, Zhiwen
Format: Artikel
Sprache:eng
Schlagworte:
Applied sciences
Exact sciences and technology
fatigue
loading
Mechanical properties and methods of testing. Rheology. Fracture mechanics. Tribology
Metals. Metallurgy
stress
welds
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Zusammenfassung:In this paper, the Low Cycle Fatigue (LCF) damage evolution of weld Heat Affected Zone (HAZ) is studied by use of Continuum Damage Mechanics. Based on a continuum damage variable, D, on the effective stress concept and on thermodynamics, a continuum damage model of isotropic LCF is derived, and is used to analyse the LCF damage evolution of thermally simulated HAZ. A comparison between model and the experimental results is presented and a good agreement is found.
ISSN:0013-7944
1873-7315
DOI:10.1016/0013-7944(90)90081-Q