A Simplified Model for the Effect of Weld-Induced Residual Stresses on the Axial Ultimate Strength of Stiffened Plates

A Simplified Model for the Effect of Weld-Induced Residual Stresses on the Axial Ultimate... The present work investigates the compressive axial ultimate strength of fillet-welded steel-plated ship structures subjected to uniaxial compression, in which the residual stresses in the welded plates are calculated by a thermo-elasto-plastic finite element analysis that is used to fit an idealized model of residual stress distribution. The numerical results of ultimate strength based on the simplified model of residual stress show good agreement with those of various methods including the International Association of Classification Societies (IACS) Common Structural Rules (CSR), leading to the conclusion that the simplified model can be effectively used to represent the distribution of residual stresses in steel-plated structures in a wide range of engineering applications. It is concluded that the widths of the tension zones in the welded plates have a quasi-linear behavior with respect to the plate slenderness. The effect of residual stress on the axial strength of the stiffened plate is analyzed and discussed. . . . Keywords Fillet weld Finite element analysis Residual stress Ultimate strength 1 Introduction the weld, balanced by lower compressive residual stresses elsewhere in the structure. Residual stresses induced by The strength of plate elements and stiffened plates has been an shrinkage of the molten region are http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Journal of Marine Science and Application Springer Journals

A Simplified Model for the Effect of Weld-Induced Residual Stresses on the Axial Ultimate Strength of Stiffened Plates

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Publisher
Harbin Engineering University
Copyright
Copyright © 2018 by Harbin Engineering University and Springer-Verlag GmbH Germany, part of Springer Nature
Subject
Engineering; Offshore Engineering; Machinery and Machine Elements; Power Electronics, Electrical Machines and Networks; Geotechnical Engineering & Applied Earth Sciences
ISSN
1671-9433
eISSN
1993-5048
D.O.I.
10.1007/s11804-018-0007-7
Publisher site
See Article on Publisher Site

Abstract

The present work investigates the compressive axial ultimate strength of fillet-welded steel-plated ship structures subjected to uniaxial compression, in which the residual stresses in the welded plates are calculated by a thermo-elasto-plastic finite element analysis that is used to fit an idealized model of residual stress distribution. The numerical results of ultimate strength based on the simplified model of residual stress show good agreement with those of various methods including the International Association of Classification Societies (IACS) Common Structural Rules (CSR), leading to the conclusion that the simplified model can be effectively used to represent the distribution of residual stresses in steel-plated structures in a wide range of engineering applications. It is concluded that the widths of the tension zones in the welded plates have a quasi-linear behavior with respect to the plate slenderness. The effect of residual stress on the axial strength of the stiffened plate is analyzed and discussed. . . . Keywords Fillet weld Finite element analysis Residual stress Ultimate strength 1 Introduction the weld, balanced by lower compressive residual stresses elsewhere in the structure. Residual stresses induced by The strength of plate elements and stiffened plates has been an shrinkage of the molten region are

Journal

Journal of Marine Science and ApplicationSpringer Journals

Published: Mar 29, 2018

References

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