Plastic energy dissipation rate during stable crack growth in a plate of finite thickness under biaxial loading

Raju, KN and Dash, PK (1979) Plastic energy dissipation rate during stable crack growth in a plate of finite thickness under biaxial loading. In: Proceedings of the International Conference on Fracture Mechanics in Engineering Application, 26-30 Mar 1979, Bangalore, India.

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Abstract

The mechanics of plastic energy dissipation for a stably growing crack in a finite-thickness plate under biaxial loading is investigated by approximate analysis. It is shown that plastic energy dissipation rate increases with the biaxial stress ratio more rapidly on the negative side than on the positive side. The increase becomes larger with greater values of the applied stress normal to the crack. For plane stress conditions, the minimum value of plastic energy dissipation rate occurs when the biaxial stress ratio is unity, while for plane strain conditions, the minimum rate corresponds to the biaxial stress ratio between 2 and 3.

Item Type: Conference or Workshop Item (Paper)
Uncontrolled Keywords: Axial loads;Crack propagation;Energy dissipation;Plate theory; Approximation;Plane stress;Rates(per time);Stress ratio;Tensile stress
Subjects: CHEMISTRY AND MATERIALS > Composite Materials
Division/Department: Materials Science Division, Materials Science Division
Depositing User: M/S ICAST NAL
Date Deposited: 04 Dec 2006
Last Modified: 24 May 2010 09:53
URI: http://nal-ir.nal.res.in/id/eprint/3592

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