A hybrid-Trefftz element containing an elliptic hole
作者： Manicka Dhanasekar , Jianjun Han , Qinghua Qin
DOI: 10.1016/J.FINEL.2006.06.008
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摘要: Much work on special elements that simplify geometrical modelling of structures containing holes, cracks and/ or inclusions has been reported extensively in the literature. This paper presents a hybrid-Trefftz element elliptic hole formulated using Hellinger-Reissner principle by employing trial functions based mapping technique and Cauchy integral method. The presented this could be regarded as an improved formulation over Piltner [Special finite with holes internal cracks, Int. J. Numer. Methods Eng 21 (1985) 1471-1485] because chosen trail have provided relatively more stable solutions. use other ordinary displacement-based also yielded very accurate solutions even when coarse meshes relative to size used.
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