Abstract
Spot welded thin wall structures are widely used in carrying structure of vehicles. Presented finite element approach combines modeling of thin structural elements by shell elements, spot welded joints by beam (welded) elements and contact conditions between welded shits by gap elements. Improved Bathe-Dvorkin shell element with incompatible modes is used in combination with von Mises material model with mixed hardening assumption and the Ramberg-Osgood relation (incompressible plastic flow). The implicit stress integration procedure, according to the governing parameter method (GPM), is used. Gap elements are used to prevent penetration and overlapping of modeled surfaces. In this paper we analyze influence of modeling real contact conditions during process of girder deformation. Comparison to case when contact conditions are neglected is given. Presented approach is illustrated with example that demonstrate usability and efficiency.
| Original language | English (US) |
|---|---|
| Title of host publication | Computational Plasticity |
| Subtitle of host publication | Fundamentals and Applications - Proceedings of the 8th International Conference on Computational Plasticity, COMPLAS VIII |
| Publisher | International Center for Numerical Methods in Engineering |
| Pages | 1043-1046 |
| Number of pages | 4 |
| Edition | PART 2 |
| ISBN (Print) | 849599979X, 9788495999795 |
| State | Published - Jan 1 2005 |
| Event | 8th International Conference on Computational Plasticity: Fundamentals and Applications, COMPLAS VIII - Barcelona, Spain Duration: Sep 5 2005 → Sep 7 2005 |
Other
| Other | 8th International Conference on Computational Plasticity: Fundamentals and Applications, COMPLAS VIII |
|---|---|
| Country/Territory | Spain |
| City | Barcelona |
| Period | 9/5/05 → 9/7/05 |
Keywords
- Elasto-plastic deformation
- Gap
- Shell
- Spot welding
ASJC Scopus subject areas
- Computational Theory and Mathematics
- Theoretical Computer Science