Author(s)

G. Kuhn & O. Kohler

Abstract

A boundary-domain integral method for 2D, 3D and axisymmetric problems at finite strains is presented, which is applicable to arbitrary hyperelastic constitutive laws. By introducing an intermediate configuration, elastoplas- tic problems can be treated, too. A total Lagrange scheme is used, so that the arising integrals have to be evaluated only once, which minimizes the numerical effort to compute the system matrices. In an incremental solu- tion procedure the nonlinear set of equations is solved by Newton's method in each load step. A significant reduction of computation time could be achieved by using an iterative solver (GMRES) within Newton's method to compute the corrections from the linea

Keywords