Investigation of residual stress effects on creep crack initiation and growth using local out-of-plane compression》.pdf

Accepted Manuscript Investigation of residual stress effects on creep crack initiation and growth using local out-of-plane compression X.M. Song, G.Z. Wang, F.Z. Xuan, S.T. Tu PII: S0013-7944(15)00581-0 DOI: /10.1016/j.engfracmech.2015.10.002 Reference: EFM 4913 To appear in: Engineering Fracture Mechanics Received Date: 20 April 2015 Revised Date: 25 August 2015 Accepted Date: 5 October 2015 Please cite this article as: Song, X.M., Wang, G.Z., Xuan, F.Z., Tu, S.T., Investigation of residual stress effects on creep crack initiation and growth using local out-of-plane compression, Engineering Fracture Mechanics (2015), doi: /10.1016/j.engfracmech.2015.10.002 This is a PDF file of an unedited manuscript that has been accepted for publication. As a service to our customers we are providing this early version of the manuscript. The manuscript will undergo copyediting, typesetting, and review of the resulting proof before it is published in its final form. Please note that during the production process errors may be discovered which could affect the content, and all legal disclaimers that apply to the journal pertain. Investigation of residual stress effects on creep crack initiation and growth using local out-of-plane compression * X.M. Song, G.Z. Wang , F.Z. Xuan, S.T. Tu Key Laboratory of Pressure Systems and Safety, Ministry of Education, East China University of Science and Technology, Shanghai 200237, China Abstract The effects of residual stress on creep crack initiation and growth behavior were investigated. It has been shown that higher compressive residual stress ahead of crack tips delays creep crack initiation and increases creep initiation life. The mechanism of residual stress effect on the cr