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RISA study of Cleavage Fracture of A508 Steel using Round Notched bar specimens
This paper presents the results of an experimental and numerical study carried out to investigate the
scatter in cleavage fracture in A508, a reactor pressure vessel steel, using a local fracture criterion based
on Weibull’s analysis...
Predicting cleavage fracture in presence of residual stresses
It is important to characterise the influence of initial residual stresses on cleavage fracture. Such stresses often arise from fabrication processes especially around welds, where the appearance of cracks is also a likely event. Using a specific...
Comparison of Global and Local Approaches to Predicting Warm Pre-stress effect on Cleavage Fracture toughness of ferritic steels
Potentially both global and local approaches may be used to predicting the effect of loading history on cleavage fracture toughness distribution of ferritic steels. In this paper the dramatic increase in the apparent lower shelf fracture toughness...
The Effects of Warm Pre-Stressing on Cleavage Fracture, Part 2: Finite element analysis
Finite element analyses have been performed to simulate and verify the findings of the extensive experimental
programme aimed to characterise the mechanical parameters and the cleavage fracture response following warm prestressing...
Comparison of Global and Local Approaches to Predicting Warm Pre-stress effect on Cleavage Fracture toughness of ferritic steels
Potentially both global and local approaches may be used to predicting the effect of loading
history on cleavage fracture toughness distribution of ferritic steels. In this paper the dramatic
increase in the apparent lower shelf...
Influence of initial stresses on cleavage fracture of pressure vessel containing a part circumferential surface crack
likely event) on cleavage fracture. Using a specific crack configuration, this paper explores the stress state at crack tip area under similar loading conditions with and without the presence of initial stresses as well as their interaction and compares...
The effects of warm pre-stressing on cleavage fractur, Part I: Evaluation of Experiments
on improvements in cleavage fracture toughness has been investigated. Scatter within experimental cleavage toughness
data has been described by using the model proposed by Wallin [Defect Assessment in Components, Fundamentals and
Applications, ESIS...
a local stress based approach to fracture following warm pre-stressing
Quantification of the enhancement in cleavage fracture toughness of ferritic steels following warm pre-stressing has received great interest in light of its significance in the integrity assessment of such structures as pressure vessels. A Beremin...
The Effects of WPS on Cleavage Fracture of ferritic steels
on improvements in cleavage fracture toughness has been investigated. Finite
element analyses have been performed to simulate and verify the findings of the experimental programme.
Scatter within experimental cleavage toughness data has been...