Reissner-Mindlin Plate Element for Large Deflection Problem
The primary objective of this work is to develop a simple and practical displacement finite element model for elastic-plastic large deflection problems of thin plates. The applicability of existing Mindlin plate elements to the problem is examined for this purpose. It is revealed that the Mindlin element with low order of interpolation results in poor accuracy for geometrically nonlinear problems. To overcome the deficiency, element with heterogeneous interpolation is proposed. Also, locking associated with the element is discussed and a proper technique to remove it is proposed.
KeywordsTransverse Shear Transverse Displacement Thinness Ratio Mindlin Plate Internal Constraint
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