TY  - EJOU
AU  - Providakis, C.P . 

TI  - BEM / FEM Comparison Studies for the Inelastic Dynamic Analysis of Thick Plates on Elastic Foundation
T2  - Computer Modeling in Engineering \& Sciences

PY  - 2000
VL  - 1
IS  - 3
SN  - 1526-1506

AB  - Boundary and Finite Element methodologies for the determination of the inelastic response of thick plates resting on Winkler-type elastic foundations are compared and critically discussed. For comparison reasons the domain/boundary element and the finite element methodology use isoparametric elements of the same accuracy level. After a discretizaton of the integral equations of motion in both methodologies an efficient step-by-step time integration algorithm is used to solve the resulting matrix equations. Comparison studies are shown for impacted elastoplastic thick plates with smooth boundaries and supported on different Winkler-type foundations. The numerical results reveal that boundary element method appears to be a better choice in modelling the plate-foundation interaction.
KW  - Boundary Element Method
KW  -  Finite Element Method
KW  -  Dynamic Analysis
KW  -  Elastoplasticity
KW  -  Thick Plates
KW  -  Winkler type elastic foundation

DO  - 10.3970/cmes.2000.001.425