Fatigue Life Prediction in Aluminium Welds for Thin-sheet Structures

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dc.contributor.authorKristiansson, Robin
dc.contributor.authorNorberg, Filip
dc.contributor.departmentChalmers tekniska högskola / Institutionen för mekanik och maritima vetenskapersv
dc.contributor.examinerEkberg, Anders
dc.contributor.supervisorHanneberg, Mikael
dc.date.accessioned2022-06-30T09:26:51Z
dc.date.available2022-06-30T09:26:51Z
dc.date.issued2022sv
dc.date.submitted2020
dc.description.abstractCurrent codes and recommendations used for fatigue analysis of welded joints are mainly developed for the civil and maritime sectors where the material thickness used is typically more than 5 mm. This is a problem when studying welded components in the automotive industry where the general structure is thinner. This thesis aims to propose and compare two methods with different level of modelling detail developed for thin-walled structures with a material thickness of less than 5 mm. The methods proposed are found from a study of relevant research and are implemented on two different joints. A series of different load cases were simulated and a comparison of the results was made with the aim of finding any discrepancies between the methods, both concerning fatigue resistance data and stress extraction. The findings suggests that the major deviation between the methods is related to the fatigue resistance data which is determined from different experimental sources. More interesting was the difference between the methods related to the stress extraction where the deviation in the results depends on the ratio between membrane and bending stresses in the welded joints.sv
dc.identifier.coursecodeMMSX30sv
dc.identifier.urihttps://hdl.handle.net/20.500.12380/304960
dc.language.isoengsv
dc.relation.ispartofseries2022:45sv
dc.setspec.uppsokTechnology
dc.subjectweldssv
dc.subjectfatiguesv
dc.subjectthin-walled structuressv
dc.subjectaluminiumsv
dc.subjectFEAsv
dc.subjectVolvo methodsv
dc.subjectnotch stress methodsv
dc.titleFatigue Life Prediction in Aluminium Welds for Thin-sheet Structuressv
dc.type.degreeExamensarbete för masterexamensv
dc.type.uppsokH
local.programmeApplied mechanics (MPAME), MSc
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