Artículos de revistas
An Improved Numerical Integration Algorithm For Elastoplastic Constitutive Equations
Registro en:
Computers And Geotechnics. Elsevier Ltd, v. 64, n. , p. 1 - 9, 2015.
0266352X
10.1016/j.compgeo.2014.10.013
2-s2.0-84910603093
Autor
Cecilio D.L.
Devloo P.R.B.
Gomes S.M.
dos Santos E.R.S.
Shauer N.
Institución
Resumen
A simplified methodology is proposed for elastoplastic calculations which holds for associative models. It is based on the representation of the elastoplastic model based on a rotation of the principal stresses and the fact that, in such system of coordinates, the direction that minimizes the square of a distance between a trial stress and the plastic surface has the same direction as the plastic deformation evolution. Such an approach allows for the elastoplastic calculation of complex models to be simpler and more efficient computationally. The proposed methodology is verified by the application to the elastoplastic model of Sandler-DiMaggio. 64
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