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Effects of welding-induced residual stress on ultimate strength of plates and stiffened panels

2011; Taylor & Francis; Volume: 6; Issue: 4 Linguagem: Inglês

10.1080/17445301003776209

1754-212X

Imtaz Khan, Shengming Zhang,

Concrete Corrosion and Durability

Abstract During the welding of steel-plated structures, geometric distortions and residual stresses are developed. The influence of welding-induced geometric distortions and residual stresses on the compressive ultimate strength in longitudinal direction of plates and stiffened panels were investigated using nonlinear finite element analyses considering a range of plate thicknesses with various levels of residual stresses. The residual stresses in plates and stiffened panels have been modelled carefully and their effects on these structures due to welding-induced imperfections only are studied. The results and insights observed from the current study are presented. Keywords: platesstiffened panelsultimate strengthgeometric distortionresidual stress Acknowledgements The authors would like to thank Mr. Tim Hall and their colleagues in Lloyd's Register for their support and comments. The views expressed in this paper are those of the authors and are not necessarily those of Lloyd's Register. Lloyd's Register, its affiliates and subsidiaries, and their respective officers, employees or agents are, individually and collectively, referred to in this clause as the 'Lloyd's Register Group'. The Lloyd's Register Group assumes no responsibility and shall not be liable to any person for any loss, damage or expense caused by reliance on the information or advice in this document or howsoever provided, unless that person has signed a contract with the relevant Lloyd's Register Group entity for the provision of this information or advice, and in that case any responsibility or liability is exclusively on the terms and conditions set out in that contract.