Non fracture prediction of a C-Mn weld joint in brittle to ductile fracture transition temperature range. Part II: Determination of the stress-based criterion parameters and evaluation of its transferability

摘要

This paper evaluates the brittle fracture risk for a C-Mn weld in the brittle-to-ductile transition: the criterion considered is based on a critical stress sigma(th), with the failure probability related to the volume around the crack where the maximum principal stress exceeds sigma(th). In Part II, the criterion is calibrated using more fracture tests at lower temperature. The capacity of the criterion to predict the probabilities of failure is validated. Finally, its transferability to another geometry is evaluated and appears to be possible. (C) 2016 Elsevier Ltd. All rights reserved.