Control of Welding Distortion in Thin-Plate Fabrication: Design Support Exploiting Computational Simulation

Overview

The intense temperature fields caused by heat sources in welding frequently lead to distortions and residual stresses in the finished product. Welding distortion is a particular problem in fabricating thin plate structures such as ships. Based on pioneering research by the authors, Control of Welding Distortion in Thin-Plate Fabrication reviews distortion test results from trials and shows how outcomes can be modeled computationally. The book provides readers with an understanding of distortion influences and the...

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Control of Welding Distortion in Thin-Plate Fabrication: Design Support Exploiting Computational Simulation

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Overview

The intense temperature fields caused by heat sources in welding frequently lead to distortions and residual stresses in the finished product. Welding distortion is a particular problem in fabricating thin plate structures such as ships. Based on pioneering research by the authors, Control of Welding Distortion in Thin-Plate Fabrication reviews distortion test results from trials and shows how outcomes can be modeled computationally. The book provides readers with an understanding of distortion influences and the means to develop distortion-reducing strategies.

The book is structured as an integrated treatment. It opens by reviewing the development of computational welding mechanics approaches to distortion. Following chapters describe the industrial context of stiffened plate fabrication and further chapters provide overviews of distortion mechanics and the modeling approach. A chapter on full-scale welding trials is followed by three chapters that develop modeling strategies through thermal process and thermo-mechanical simulations, based on finite-element analysis. Simplified models are a particular feature of these chapters. A final sequence of chapters explores the simulation of welding distortion in butt welding of thin plates and fillet welding of stiffened plate structures, and shows how these models can be used to optimize design and fabrication methods to control distortion.

Control of Welding Distortion in Thin-Plate Fabrication is a comprehensive resource for metal fabricators, engineering companies, welders and welding companies, and practicing engineers and academics with an interest in welding mechanics.

  • Allows practitioners in the field to minimize distortion during the welding of thin plates
  • Provides computational tools that can give insight into the effects of welding and fabrication procedures
  • Demonstrates how welding distortion in thin plate fabrications can be minimized through design
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Product Details

Meet the Author

Tom Gray is a Professor at the University of Strathclyde, UK.

Duncan Camilleri is a Senior Lecturer at the University of Malta, Malta.

Norman McPherson is a Welding Manager at BAE Systems, Surface Ships, UK.

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Table of Contents

Introduction: Development of computational welding mechanics approach to welding distortion; Fabrication of stiffened thin-plate structures and the problem of welding distortion; Tools to deal with welding distortion: Predictive modelling and research on in-process techniques; Understanding welding distortion: Thermal fields and thermo-mechanical effects; Computational simulation of welding distortion: An overview; Experimental investigation of models of welding distortion: Methods, results and comparisons; Modelling thermal processes in welding; Computationally efficient methods for modelling welding processes; Finite-element thermo-mechanical techniques for welding distortion prediction; Simulating welding distortion in butt welding of thin-plates; Simulating welding distortion in fillet welding of stiffened plate structures; Exploiting welding distortion models: Examples of design and manufacturing strategies to optimise fabrication

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