NASA NTRS · 19840007527
Orthotropic hole element
Abstract
A finite element was developed to adequately represent the state of stress in the region around a circular hole in orthotropic material experiencing reasonably general loading. This has been achieved through a complementary virtual work formulation of the stiffness and stress matrices for a square element with a center circular hole. The element has been incorporated into COSMIC/NASTRAN as a dummy element. Sample problems have been solved and these results are presented.
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Markham, J. W., Smith, C. V.. 1983-11-01. Orthotropic hole element. https://ntrs.nasa.gov/citations/19840007527
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