Product Code: ICAL05_1305

Thermo-Mechanical Modeling of Hybrid Welding
Authors:
Edward Reutzel, Applied Research Laboratory, Pennsylvania State University; State College PA USA
Michael Bugarewicz, Dept. of Nuclear and Mechanical Engineering, Pennsylvania State University; University Park PA USA
Panagiotis Michaleris, Dept. of Nuclear and Mechanical Engineering, Pennsylvania State University; University Park PA USA
Shawn Kelly, Applied Research Laboratory, Pennsylvania State University; State College PA USA
Richard Martukanitz, Applied Research Laboratory, Pennsylvania State University; State College PA USA
Presented at ICALEO 2005

A thermo-mechanical model for predicting the mechanical effects of hybrid welding is developed. Heat conduction analyses are performed to determine the temperature history followed by elasto-plastic analyses to evaluate residual stress and distortion. A heat input model is developed for hybrid welding and it is verified through calorimetry testing, weld sectioning and thermo-couple measurements. The mechanical analysis results are verified against distortion and residual stress measurements. Finite element analysis is used to scale the results from the small experimental specimens to large structures and evaluate the propensity of hybrid welding in causing buckling.