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RESEARCH PAPERS

Solving Three-Dimensional Stress Analysis Problems by a Surface Representation Alone

[+] Author and Article Information
M. Thompson

British Gas Corporation, Research and Development Division, Engineering Research Station, Killingworth, Newcastle upon Tyne, England

J. Energy Resour. Technol 101(2), 105-111 (Jun 01, 1979) (7 pages) doi:10.1115/1.3446898 History: Received August 02, 1978; Revised February 20, 1979; Online August 19, 2010

Abstract

A numerical procedure is devised for the solution of three-dimensional static problems in an homogeneous linear elastic medium by means of a surface distribution of potential functions. Once the surface distribution is known, the solution in the interior is found by integration of the distribution over the surface. The procedure involves division of only the surface into discrete areas which is an advantage over the volume divisions of the finite element method. The procedure has the benefits in initially conceiving the problem, in formalizing the data, in reduced size of matrices to solve and in ease of handling discontinuous boundary conditions. The potential function approach is extended to bodies of more than one medium and to multi-seam mining where the horizons may be differing linear elastic properties and the seam may be nonelastic and even time dependent. It is shown that the case of axisymmetry cannot be reduced to two potential functions in two dimensions.

Copyright © 1979 by ASME
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