Boundary integral equations of unique solutions in elasticity |
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Authors: | Zhou Shenjie Cao Zhiyuan Sun Shuxun |
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Institution: | 1. Department of Chemical Engineering, Shandong University of Technology, Jinan 250061, P.R.China;2. Department of Engineering Mechanics, Tongji University, Shanghai 200092, P.R.China;3. Institute of Engineering Mechanics, Shandong University of Technology, Jinan 250061, P.R.China |
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Abstract: | The properties of the fundamental solution are derived in linear elastostatics. These properties are used to show that the conventional displacement and traction boundary integral equations yield non_unique displacement solutions in a traction boundary value problem. The condition for the existence of unique displacement solutions is proposed for the traction boundary value problem. The degrees of freedom of the displacement solution are removed by the condition to obtain the boundary integral equations of unique solutions for the traction boundary value problems. Numerical example is presented to demonstrate the accuracy and efficiency of the present equations. |
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Keywords: | boundary integral equation boundary element method elasticity |
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