About this Abstract |
| Meeting |
2025 AWS Professional Program
|
| Symposium
|
2025 AWS Professional Program
|
| Presentation Title |
Residual Stress and Deformation in Basic Welded Joints and Practical Structures |
| Author(s) |
Ninshu Ma |
| On-Site Speaker (Planned) |
Ninshu Ma |
| Abstract Scope |
The residual stress and deformation distributions in various basic welded joints analyzed using author developed software “JWRIAN” based on based on thermal elastic-plastic theory and finite element method (FEM) as well as measured in experiments were summarized.
To predict the welding deformation in large-scale practical structures, welding inherent deformation modes and their magnitude were induced based on inherent strain theory. Furthermore, an interface element formulation was derived for modelling the assembly deformation by closing welding gap induced in previous welds.
Using welding inherent deformation database established by performing finite element analysis or experimental measurement on basic welded joints, both welding deformation and assembly deformation in practical structures were efficiently predicted.
Finally, application examples of welding deformation control strategy are demonstrated based on the predicted results. |
| Proceedings Inclusion? |
Undecided |