Stress Computations for Nearly Incompressible Materialsby Barna A. Szabó, Washington Univ, United States,
Document Type: Proceeding Paper
Part of: Computer Utilization in Structural Engineering
Computation of stresses by the finite element method (FEM) in the case of nearly incompressible isotropic elastic materials is discussed. It is shown that for moderately high Poisson's ratios (up to about 0.49) no special procedures are required when the p- or hp-versions of the FEM is used. For higher Poisson ratios the differences of normal stresses and the shear stresses can be computed accurately but computation of the sum of normal stresses requires special procedures. An example, suitable for benchmark computations, is presented.
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