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- W307884022 abstract "The isoparametric nine-node membrane element(EAS-QPM9) with 11-parameter enhanced assumed strain (EAS) field is used for analyzing two dimensional plane stress/strain problem with isotropic and anisotropic materials. The EAS method based on Hu-Washizu principle, recently proposed by Simo and Rifai(1990), contains the classical incompatible displacement method proposed by Wilson(1973) as special cases and is equivalent to assumed stress hybrid/miked method based on Hellinger-Reissner principle. The EAS-QPM9 element has no spurious locking, volumetric locking or Poisson's locking caused by nearly incompressible condition, and no membrane locking under in-plane loading. The EAS-QPM9 using Legendre Polynomials with orthogonality condition passes the patch test. The various numerical examples such as straight and curved geometry, isotropic and anisotropic materials are tested. The numerical results show that the EAS-QPM9 applied by a simple process in stresses calculation rapidly converges to exact solution without regard to severe distorted mesh and coarse mesh for not only nodal displacements but also stresses, and has considerable advantage for curved geometry in particular." @default.
- W307884022 created "2016-06-24" @default.
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- W307884022 date "2004-01-01" @default.
- W307884022 modified "2023-09-24" @default.
- W307884022 title "Analysis of Plane Stress/Strain Problem using an Improved Enhanced Assumed Strain(EAS) Nine-Node Membrane Element" @default.
- W307884022 hasPublicationYear "2004" @default.
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