Continuation of some solutions in potential theory and their applications to elastic contact and crack problems |
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Authors: | V I Fabrikant |
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Institution: | (1) Cote-Ste.-Luc, 5525 Trent ave., apt. 504, H4W 2B8 Montreal, Canada |
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Abstract: | The following mixed boundary value problem is considered: arbitrary tangential displacements are prescribed inside a circle, while the tangential and normal stresses outside the circle are zero. In this case, a direct and simple formula is derived for the tangential displacements outside the circle in terms of prescribed displacements inside, thus making the tangential displacement known all over the boundary. The original problem is no longer mixed, and the complete solution becomes readily available. Another solution for the case, when arbitrary tangential displacements are prescribed outside a circle, is derived in a similar manner. The reciprocal theorem is used to derive the continuation formulae for the tangential stresses inside and outside a circle. Application of these results to contact and crack problems is demonstrated. |
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