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Alternative simulation techniques for distortion of thin plate due to fillet-welded stiffeners

Camilleri, D. and Mollicone, P. and Gray, T.G.F. (2006) Alternative simulation techniques for distortion of thin plate due to fillet-welded stiffeners. Modelling and Simulation in Materials Science and Engineering, 14 (8). pp. 1307-1327. ISSN 0965-0393

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Abstract

This study aims to develop and validate a wide-ranging simulation tool to predict welding distortion in stiffened plates and shells, with particular emphasis on out-of-plane deformation. The approach adopted in this study uncouples the thermal, elasto-plastic and structural effects leading to distortion. The computational models and results are supported by realistic welding tests and appropriate measurements to validate the simulated thermal fields and out-of-plane distortions. The simplest and most computationally efficient model makes use of algorithms, instead of numerical computation, to link the thermal welding strains to the elasto-plastic and structural responses of the welded assembly, via a static, single-load-step analysis. Alternative, more computationally intensive models are explored which simulate the full transient thermal and elasto-plastic structural responses in an uncoupled fashion. These provide a cross-reference for the more rudimentary but computationally efficient models. The experiments and computational strategies are applied to welded assemblies incorporating double-fillet-welded stiffeners.

Item type: Article
ID code: 5880
Keywords: residual-stresses, welding distortion, inherent strains, prediction, Mechanical engineering and machinery, Mechanics of Materials, Modelling and Simulation, Materials Science(all), Computer Science Applications, Condensed Matter Physics
Subjects: Technology > Mechanical engineering and machinery
Department: Faculty of Engineering > Mechanical and Aerospace Engineering
Related URLs:
    Depositing user: Strathprints Administrator
    Date Deposited: 28 Apr 2008
    Last modified: 03 Jul 2014 15:47
    URI: http://strathprints.strath.ac.uk/id/eprint/5880

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