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Anisotropic Aspects of Material Damage and Application of Continuum Damage Mechanics

  • Sumio Murakami
Part of the International Centre for Mechanical Sciences book series (CISM, volume 295)

Abstract

The application of continuum mechanics to the anisotropic aspect of material damage is discussed. The microstructual change due to material damage usually depends significantly on the direction of the local stress and local strain, and is intrinsically anisotropic. Thus, the oriented nature observed in various kinds of damage and its effect on mechanical behaviour of the materials are first reviewed. Then, the modeling of the anisotropic damage states of materials in terms of mechanical variables is discussed. Definition of damage variables in terms of effective area reduction, change of elastic constants and microscopic character of cavity configuration are reviewed. Damage models based on scalar, vector, and tensor variables are presented. Finally, application of anisotropic damage theories developed by use of these variables will be discussed with special emphasis on elastic damage, elastic-plastic damage, spall damage, creep damage and the coupling of these kinds of damage.

Keywords

Damage State Damage Variable Material Damage Creep Damage Rupture Time 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer-Verlag Wien 1987

Authors and Affiliations

  • Sumio Murakami
    • 1
  1. 1.Department of Mechanical EngineeringNagoya UniversityChikusa-Ku NagoyaJapan

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