Combined effect of residual stress and loading history on brittle fracture

Hadidi-Moud, S; Mahmoudi, AH; Truman, CE; Smith, DJ

Abstract

The aim of this paper is to examine the influence of residual stress (RS) and loading history on the subsequent low-temperature cleavage fracture resistance of ferritic steel structures such as pressure vessels. Three dimensional finite element analyses of compact tension, C(T), specimen are carried out for various RS fields (i.e. local, global, combined. A Beremin type local approach [1] has been shown to predict the apparent fracture toughness for various situations and the predictions are evaluated using the data obtained from a test programme and through comparison with the as-received fracture data. The dominating role of warm pre-stressing in enhancement of cleavage fracture toughness depending on the significance of global RS field is also discussed. Finally the strengths and weaknesses of the adopted predictive model are discussed and suggestions to further generalisation of the model are provided.

• Presentation Conference Type: Conference Paper (unpublished)
• Conference Name: 9th International Conference on Mechanical Behaviour of Materials, ICM9
• Start Date: May 25, 2003
• End Date: May 29, 2003
• Deposit Date: Sep 15, 2024
• Peer Reviewed: Peer Reviewed
• Public URL: https://uwe-repository.worktribe.com/output/12889321
• Publisher URL: https://profdoc.um.ac.ir/articles/a/1011967.pdf