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Date of Publication:2022-10-06

Journal:船舶力学

Affiliation of Author(s):运载工程与力学学部

Issue:2

Page Number:277-282

ISSN No.:1007-7294

Abstract:Usually, heating after the structure welded is used as an impediment in accuracy control of the angular distortion in shipyards. In this paper, another effective impediment is offered to control the angular distortion: impose elastic reversed angular distortion before welding. The welding process of no reversed angular distortion is simulated by using thermal elasto-plastic finite element techniques to evaluate the residual angular distortion of the T-joint in fillet weld, then the welding process imposing reserved angular distortion. Sequentially, a series of welding processes was calculated, which is different in both the thickness of the plate and heat flux, and the rule of weld reversed angular distortion was analyzed: all the structures reversed angular distortion is almost horizontal alter weld.

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