A FUNDAMENTAL STUDY OF THE INTERACTION OF RESIDUAL STRESS AND APPLIED LOADING ON FRACTURE

C. J. Aird, M. J. Pavier, D. J. Smith

Research output: Chapter in Book/Report/Conference proceedingConference Contribution (Conference Proceeding)

Abstract

This paper presents the results of a fundamental finite-element based study of the crack-closure effects associated with combined residual and applied loading. First, an analytical expression for a representative two-dimensional residual stress field is derived. This residual stress field contains a central compressive region surrounded by an equilibrating tensile region. The analytical expression allows the size and shape of the field to be varied along with the magnitude of the residual stress. The residual stress field is then used as a prescribed initial stress field in a finite element model, in addition to a far field applied load. By introducing cracks of increasing length into these models, charts of stress-intensity-factor versus crack length are produced for different relative magnitudes of residual stress and applied load and for different sizes and shape of the residual stress field. These charts provide insight into the way in which crack-tip conditions evolve with crack growth under conditions of combined residual and applied loading and also enable conditions of crack closure and partial closure to be identified.

Original languageEnglish
Title of host publicationPROCEEDINGS OF THE ASME PRESSURE VESSELS AND PIPING CONFERENCE 2010, VOL 6, PTS A AND B
EditorsBJ Wiersma, B Bezensek, MPH Brongers, FW Brust, B Burdett, A Chakraborty, A Cockie, M Cohn, S Cravero, R Dennis, S Doctor, B Dogan, A Duncan, H Faria, Z Feng, J Fong, I Garcia, P Gilles, S Gosselin, K Hasegawa, O Hedden, J Helms, C Jaske, E Keim, YJ Kim, D Kwon, PS Lam, BS Lee, GQ Li, D Lidbury, AH Mahmoudi, P Marcal, M Mochizuki, D Moinereau, AH Mourad, A Motarjemi, N ODowd, S Ortner, SS Pang, HY Qian, WJ Ren, D Rudland, D Scarth, TL Sham, J Sharples, A Sherry, DJ Shim, A Sisan, R Swindeman, Y Tanaka, C Truman, JA Wang, B Wiersma, E Woldesenbet, K Yoon, XK Zhu
Place of PublicationNEW YORK
PublisherAmerican Society of Mechanical Engineers (ASME)
Pages1469-1475
Number of pages7
ISBN (Print)978-0-7918-4925-5
Publication statusPublished - 2010
EventASME Pressure Vessels and Piping Division/K-PVP Conference - Bellevue, United States
Duration: 18 Jul 201022 Jul 2010

Conference

ConferenceASME Pressure Vessels and Piping Division/K-PVP Conference
CountryUnited States
CityBellevue
Period18/07/1022/07/10

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