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Stress determination for fatigue analysis of welded components

Edited by E Niemi, Lappeenranta University of Technology, Finland

Woodhead Publishing Series in Welding and Other Joining Technologies No. 19

A Special Report from the International Institute of Welding which introduces definitions of the terminology relevant to stress determination for fatigue analysis of welded structures. The various stress concentrations, stress categories and fatigue analysis methods are defined, and recommendations for applying finite element methods and experimental methods for stress determination are given.

ISBN 1 85573 213 0
ISBN-13: 978 1 85573 213 1
April 1995
80 pages  297 x 210mm  paperback  
£130.00 / US$220.00 / €155.00

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Contents

Scope and field of application

Stresses considered in fatigue analysis
 - Stress categories
 - Stress range
 - Static stress
 - Loads and load combinations
 - Multi-axial stress states

Stress raisers
 - Effects of macro-geometry and concentrated load areas
 - Effects of structural discontinuities
 - Effects of local notches
 - Special case: joints between structural hollow section

Fatigue analysis approaches
 - Nominal stress approach
 - Hot spot stress or strain approach
 - Notch stress/strain approaches
 - Fracture mechanics approach
 - Summary

Guidelines for the choice of fatigue analysis method
 - Nominal stress approach
 - Hot spot stress approach
 - Notch stress/strain approaches
 - Fracture mechanics approach

Guidelines for finite element analysis
 - General notes
 - Element types
 - Boundary element analysis
 - Resolution of nominal stresses
 - Resolution of hot spot stress
 - Resolution of nonlinear stress peaks
 - Superposition of the effects of micro-geometry and structural discontinuity

Experimental determination of stresses
 - General
 - Introduction to strain gauge technology
 - Application of strain gauges
 - Configurations for various criteria
 - Application examples
 - Stress spectrum and cumulative fatigue damage