Title of Project
On fatigue life improvement using low transformation temperature weld material
Name of Advisor/s
Dr Greg Wheatley
College of Science & Engineering
Summary of Project
The process of welding often produces high tensile residual stresses. By using low transformation temperature welding wire, these high tensile residual stresses can be drastically reduced or transformed into compressive residual stresses. This in turn increases the fatigue life of the welded structure. The transformation strain of candidate welding material will be determined and compared to conventional welding wire. Fatigue specimens will be fabricated with the various welding materials and residual stresses obtained. The impact can then be determined. Finite element analysis (FEA) will be done to simulate the processes.
Welding, Residual Stress, finite element analysis (FEA), fatigue
Would suit an applicant who
has a sound academic background, research experience, an interest in mechanical engineering and strong experimental and computational skills.