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dc.contributor.supervisor Yunhua, Luo (Mechanical Engineering) en_US
dc.contributor.author Subramanian, Eniyavan
dc.date.accessioned 2016-04-12T18:10:17Z
dc.date.available 2016-04-12T18:10:17Z
dc.date.issued 2015
dc.identifier.uri http://hdl.handle.net/1993/31204
dc.description.abstract Heavy vehicle structures are made from welded carbon steel frames. During operation these frames are subjected to random dynamic loads, which induce fatigue at the welded joints. A Finite Element based process for calculating fatigue life of welded joint under single excitation random loading is proposed in this study. The proposed method com-bines Equivalent Equilibrium Structural Stress (E2S2) method for weld fatigue and PSD based vibration fatigue technique for handling random loads. Fatigue life of a welded T-joint is analysed using the proposed method in frequency domain and validated against a transient dynamic analysis. The main advantage of the proposed method is the analysis run time is reduced almost 12 times compared to transient analysis. Effect of geometric changes on weld fatigue life is studied. It is found the tube thickness increase at lower thickness ranges significantly increases the fatigue life compared to higher thickness ranges. en_US
dc.subject FEA, Weld fatigue, Vibration fatigue, PSD en_US
dc.title Estimation of fatigue life of welded joint using vibration-fatigue computational model en_US
dc.degree.discipline Mechanical Engineering en_US
dc.contributor.examiningcommittee Olanrewaju, Ojo (Mechanical Engineering) Jun, Cai (Electrical Engineering) en_US
dc.degree.level Master of Science (M.Sc.) en_US
dc.description.note May 2016 en_US


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