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Analysis of structures based on a characteristic-strain model of creep

Abstract

A companion paper [Bolton J. In: A characteristic-strain model for creep, ECCC/I.Mech.E. conference on creep and fracture in high-temperature components, London, September 2005] describes a creep model based on a constant 'characteristic strain' at any temperature. The present paper discusses the application of such a model, first to simple structures and then to engineering components of general form under steady loading. A basis is proposed for identifying the stress within a structure, or within the critical part of a structure, which can be considered to govern both its overall and local deformations. The concept is similar to skeletal-point stress but is more readily applied to components of any shape. The implementation of the concept of 'structural stress' is discussed in the context of finite-element creep calculations. Consideration is given to the analysis of cracked structures, where very high strains at the crack tip must be accommodated.
Authors:
Bolton, J. , E-mail: janjohn.bolton@virgin.net [1] 
  1. Alstom Power, Newbold Road, Rugby CV21 2NH (United Kingdom)
Publication Date:
Jan 15, 2008
Product Type:
Journal Article
Resource Relation:
Journal Name: International Journal of Pressure Vessels and Piping; Journal Volume: 85; Journal Issue: 1-2; Conference: ECCC international creep conference, London (United Kingdom), 12-14 Sep 2005; Other Information: DOI: 10.1016/j.ijpvp.2007.06.013; PII: S0308-0161(07)00071-3; Copyright (c) 2007 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved; Country of input: International Atomic Energy Agency (IAEA)
Subject:
42 ENGINEERING; CRACKS; CREEP; DEFORMATION; ENGINEERING; FINITE ELEMENT METHOD; FRACTURES; STRAINS; STRESSES
OSTI ID:
21079212
Country of Origin:
United Kingdom
Language:
English
Other Identifying Numbers:
Journal ID: ISSN 0308-0161; PRVPAS; TRN: GB08R2306091881
Availability:
Available from http://dx.doi.org/10.1016/j.ijpvp.2007.06.013;INIS
Submitting Site:
GBN
Size:
page(s) 108-116
Announcement Date:
Oct 06, 2008

Citation Formats

Bolton, J. , E-mail: janjohn.bolton@virgin.net. Analysis of structures based on a characteristic-strain model of creep. United Kingdom: N. p., 2008. Web. doi:10.1016/j.ijpvp.2007.06.013.
Bolton, J. , E-mail: janjohn.bolton@virgin.net. Analysis of structures based on a characteristic-strain model of creep. United Kingdom. https://doi.org/10.1016/j.ijpvp.2007.06.013
Bolton, J. , E-mail: janjohn.bolton@virgin.net. 2008. "Analysis of structures based on a characteristic-strain model of creep." United Kingdom. https://doi.org/10.1016/j.ijpvp.2007.06.013.
@misc{etde_21079212,
title = {Analysis of structures based on a characteristic-strain model of creep}
author = {Bolton, J. , E-mail: janjohn.bolton@virgin.net}
abstractNote = {A companion paper [Bolton J. In: A characteristic-strain model for creep, ECCC/I.Mech.E. conference on creep and fracture in high-temperature components, London, September 2005] describes a creep model based on a constant 'characteristic strain' at any temperature. The present paper discusses the application of such a model, first to simple structures and then to engineering components of general form under steady loading. A basis is proposed for identifying the stress within a structure, or within the critical part of a structure, which can be considered to govern both its overall and local deformations. The concept is similar to skeletal-point stress but is more readily applied to components of any shape. The implementation of the concept of 'structural stress' is discussed in the context of finite-element creep calculations. Consideration is given to the analysis of cracked structures, where very high strains at the crack tip must be accommodated.}
doi = {10.1016/j.ijpvp.2007.06.013}
journal = []
issue = {1-2}
volume = {85}
place = {United Kingdom}
year = {2008}
month = {Jan}
}