0

Full Content is available to subscribers

Subscribe/Learn More  >

A Statistical Framework for Analysing Weld Residual Stresses for Structural Integrity Assessment

[+] Author Affiliations
Brahim Nadri, Christopher E. Truman, David J. Smith

University of Bristol, Bristol, UK

Peter J. Bouchard

British Energy Generation Ltd., Gloucester, UK

Paper No. PVP2008-61339, pp. 369-376; 8 pages
doi:10.1115/PVP2008-61339
From:
  • ASME 2008 Pressure Vessels and Piping Conference
  • Volume 6: Materials and Fabrication, Parts A and B
  • Chicago, Illinois, USA, July 27–31, 2008
  • Conference Sponsors: Pressure Vessels and Piping
  • ISBN: 978-0-7918-4829-6
  • Copyright © 2008 by ASME

abstract

Thermal and mechanical processes during welding introduce complex three-dimensional distributions of residual stress. Management of residual stresses represents a major challenge for engineers in order to achieve safe and reliable operation of existing engineering plants. Consideration of how such stresses vary through the wall within welded components is critical in structural integrity assessments. Development of more accurate and realistic weld residual stress profiles through statistical analysis of high quality measured data is highly desirable. This can not be achieved without adequate interpretation of measured weld residual stress data through the development of an appropriate framework. This paper proposes a framework for analysing measured data at four levels of complexity depending on its spatial distribution. The framework provides clear guidance on how to perform appropriate statistical analyses of residual stress data and proposes how to deal with some practical issues that may arise from various stress measurements; for example the gauge size, spatial distribution, measurement uncertainties and data analysis assumptions. Parts of the proposed framework are then applied to measured stress data in a simple welded laboratory test specimen.

Copyright © 2008 by ASME

Figures

Tables

Interactive Graphics

Video

Country-Specific Mortality and Growth Failure in Infancy and Yound Children and Association With Material Stature

Use interactive graphics and maps to view and sort country-specific infant and early dhildhood mortality and growth failure data and their association with maternal

NOTE:
Citing articles are presented as examples only. In non-demo SCM6 implementation, integration with CrossRef’s "Cited By" API will populate this tab (http://www.crossref.org/citedby.html).

Some tools below are only available to our subscribers or users with an online account.

Related Content

Customize your page view by dragging and repositioning the boxes below.

Related eBook Content
Topic Collections

Sorry! You do not have access to this content. For assistance or to subscribe, please contact us:

  • TELEPHONE: 1-800-843-2763 (Toll-free in the USA)
  • EMAIL: asmedigitalcollection@asme.org
Sign In