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Fundamentals of evaluation and diagnostics of welded structures

A Nedoseka, E.O. Paton Electric Welding Institute (PEWI) of the National Academy of Sciences, Ukraine

Woodhead Publishing Series in Welding and Other Joining Technologies No. 77

Experience has shown that the problem of guaranteeing the safe operation of structures can be divided into certain key requirements. We are pleased to say that this manual completely meets these requirements.
Professor B. E. Paton, President of the National Academy of Sciences of Ukraine (from the Foreword)

Fundamentals of evaluation and diagnostics of welded structures provides an essential guide to the key principles and problems involved in the analysis of welded structures. Chapter one discusses design issues, key equations and calculations, and the effects of varied heat sources in relation to the temperature field in welding. Chapter two goes on to explore welding stresses and strains. Fracture mechanics and the load-carrying capacity of welded structures are the focus of chapter three. Chapter four considers diagnostics and prediction of the residual life of welded structures, whilst acoustic emission techniques for the analysis of welded structures are reviewed in Chapter five. Finally, chapter six supplies supplementary information on numerical techniques and other tests for welded structures.

With its distinguished author and detailed coverage, Fundamentals of evaluation and diagnostics of welded structures is an indispensable guide for welding and structural engineers as well as those researching this important topic.

Published in association with Cambridge International Science Publishing

£190.00 / US$325.00 / €230.00

An e-book version of this title is available to purchase as part of a Collection or Pick n Mix or by Chapter. Visit Woodhead Publishing Online

About the author

Professor Anatoliy Yakovlevich Nedoseka is head of the Technical Diagnostics and Non-destructive Testing (NDT) Department at the E.O. Paton Electric Welding Institute (PEWI) of the National Academy of Sciences, Ukraine.

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Contents

The temperature field in welding
 - General
 - Brief information on the theory of integral transformations
 - Thermal conductivity equation
 - Examples of temperature field calculation in welding
 - Continuous and moving heat sources
 - Dependence of temperature fields in welding on some of the process features

Welding stresses and strains
 - Thermophysical and mechanical properties of materials
 - Welding stresses and strains at concentrated heating
 - Residual stresses in butt welding and patches welding-in
 - Integral transformations and numerical methods for solving temperature problems
 - Welding stresses and strains in a three-axial stressed state
 - Principal estimated dependences used in measurement of thermophysical and mech anical quantities
 - Measurement of residual stresses and strains
 - Measurement errors

Load-carrying capacity of welded structures
 - Peculiarities of calculation of strength of welded joints containing different defects under different external conditions and using different loading methods
 - Elements of fracture mechanics
 - Pre-fracture state and fracture of welded joints and materials
 - Elements of quantum fracture mechanics
 - Bending of round plate with residual stresses
 - Method of fictitious forces to solve problems of stability of plates containing welds
 - Variation and energy methods used in problems of stability of plates
 - Welding strains and distortions

Diagnostics and prediction of the residual life of welded structures
 - General problems of technical diagnostics
 - Strength prediction methods
 - Diagnostics and residual life of structures
 - Estimation of life of structure materials by the acoustic emission method

Acoustic emission techniques for the analysis of welded structures
 - The essence of acoustic emission
 - Theoretical issues of acoustic emission
 - Acoustic emission equipment
 - Application of acoustic emission

Supplementary sections. Numerical techniques and tests for welded structures
 - Method for mathematical processing of test results
 - Estimation of errors of numerical calculations
 - Empirical formulas
 - Mechanical and technological tests of materials
 - Stressed state of pressure vessels
 - Concentration of stresses