Investigation of shake-down effects on residual stress redistribution in ship structures

Ms Elvin Eren, Professor Michael Fitzpatrick, Mr Jazeel Rahman Chukkan, Dr Joe Kelleher, Dr Amina Boughrara Salman, Mr Usama Javid, Miss Cui Seow, Dr Guiyi Wu & Mr Dibakor Boruah
The fact that residual stresses are redistributed or relaxed during operations shows the importance of understanding residual stress after a particular period. Elastic shakedown is a phenomenon in which the structure undergoes plastic deformation accompanied with a change in residual stress during the first few cycles followed by an elastic response. As a consequence, residual stresses are redistributed or relaxed. The principal aim of this experiment is to investigate the initial, as-welded distribution of residual...
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