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On eigenstresses in a semi-infinite solid

Published online by Cambridge University Press:  24 October 2008

K. Aderogba
Affiliation:
Engineering Analysis Unit, University of Lagos, Nigeria

Abstract

A uniform eigenstrain is prescribed within a spherical subregion of an isotropic linearly elastic half-space. Combining an application of potential theory with the stress-function approach of Papkovitch and Neuber, and starting with Eshelby's well-known solution for the homogeneous infinite solid, it is shown that the residual problem of potential to be solved is the determination of Boussinesq's first and second three-dimensional logarithmic potentials of volume distributions. Although explicit results are supplied only for the case of a spherical inclusion, the dependence of the solution on the infinite solid solution holds good for an arbitrarily shaped transforming inclusion. This can be established on the basis of the principle of superposition, considering that an arbitrary volume is essentially made up from an infinite spectrum of spherical regions.

Type
Research Article
Copyright
Copyright © Cambridge Philosophical Society 1976

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References

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