Exploració per tema "numerical differentiation"
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Consistent tangent matrices for substepping schemes
(1999-09)
Report de recerca
Accés obertA very simple and general expression of the consistent tangent matrix for substep- ping time-integration schemes is presented. If needed, the derivatives required for the computation of the consistent tangent moduli can ... -
Efficient and accurate approach for powder compaction problems
(2003-02)
Article
Accés obertIn this paper, a new approach for powder cold compaction simulations is presented. A density-dependent plastic model within the framework of finite strain multiplicative hyperelastoplasticity is used to describe the highly ...