There is increasing interest in the use of dislocation methods for stress analysis. In a recent paper, McKellar, Hills, and Sackfield presented a method for obtaining the stress field induced by a triangular area of constant dislocation density. The current paper describes a simplification of the formulae, which is more robust and easier to implement. This new formulation easily extends to any polygon.
McKellarD. K.HillsD. A.SackfieldA.Modelling plasticity using strain nuclei: Discretization of the dislocation field by uniform trianglesJ. Strain Analysis, 2003, 38 (2), 95–102.
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HillsD. A.LimmerL.Modelling plasticity using strain nuclei In Proceedings of the Fourth International Conference on Modern practice in stress and vibration analysis, Nottingham, 5–7 September 2000, pp. 445–457 (EMAS Limited, Solihull).