WP 3 Goals

• Develop constitutive equations tailored for residual stress prediction that capture the most relevant micro-structural effects in high strength steels.
• Establish a reliable method by which the parameters in these constitutive equations can be experimentally identified and determined.

WP 3 Research challenges

• Quantify phase changes and distribution during relevant temperature histories in the heat affected zone.
• Quantify how the stress during plastic deformation depend upon the instantaneous phase distribution.

WP 3 Project results

• Constitutive models & testing.
• A new method has been established by which the temperature and microstructural dependency of the flow stress in welding stress simulation tools such as WeldsimS can be relatively easily determined.
• The residual stress simulation tool WeldsimS has been established.

Contact
WP3 Leader: Mohammed Mhamdi, Mohammed.Mhamdi@sintef.no