An internal state variable plasticity/damage model was employed in explicit and implicit finite element codes to predict forming limit diagrams. The finite element analyses showed that either the explicit or implicit methods can be used to determine sheet metal thickness effects, temperature and rate effects, and loading history effects. A novel way of introducing instability was introduced by different initial void volume fractions in neighboring materials. Shell elements can be used to shorten cpu times, given that shell bending assumptions are not violated.
Predicting Forming Limit Diagrams with Explicit and Implicit Finite Element Codes
Sae Technical Papers
International Congress & Exposition ; 1994
1994-03-01
Aufsatz (Konferenz)
Englisch
Predicting forming limit diagrams with explicit and implicit finite element codes
Kraftfahrwesen | 1994
|Predicting Forming Limit Diagrams with Explicit and Implicit Finite Element Codes
British Library Conference Proceedings | 1994
|Implicit and Explicit Finite Element Methods for Crash Safety Analysis
SAE Technical Papers | 2007
|Implicit and explicit finite element methods for crash safety analysis
Kraftfahrwesen | 2007
|