Abstract
This paper presents the results of an experimental and numerical study carried out to investigate the effect of warm pre-stressing on cleavage fracture in ferritic steels using cracked and notched specimens. It is shown that the local approach based on Weibull theory predicts the increase in toughness following warm pre-stressing in highly constrained geometries. The observed effect of pre-loading in low constraint specimens such as round notched bars is less. The local approach could not predict the differences and it is suggested that the variation of triaxiality factor, the ratio of hydrostatic stress to Von Mises, in the plastic zone, is a contributing factor
| Original language | English |
|---|---|
| Pages (from-to) | 177-182 |
| Number of pages | 6 |
| Journal | KEM |
| Volume | 261-263 |
| DOIs | |
| Publication status | Published - 2004 |
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Bibliographical note
This paper is not available in Pure.Keywords
- Brittle Fracture
- Failure Probability
- Local Approach
- Triaxiality
Cite this
The Role of Constraint and Warm Pre-Stress on Brittle Fracture in Ferritic Steels. / Mirzaee-Sisan, A.; Hadidi-Moud, Saeid; Truman, Christopher E.; Smith, David J.
In: KEM, Vol. 261-263, 2004, p. 177-182.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - The Role of Constraint and Warm Pre-Stress on Brittle Fracture in Ferritic Steels
AU - Mirzaee-Sisan, A.
AU - Hadidi-Moud, Saeid
AU - Truman, Christopher E.
AU - Smith, David J.
N1 - This paper is not available in Pure.
PY - 2004
Y1 - 2004
N2 - This paper presents the results of an experimental and numerical study carried out to investigate the effect of warm pre-stressing on cleavage fracture in ferritic steels using cracked and notched specimens. It is shown that the local approach based on Weibull theory predicts the increase in toughness following warm pre-stressing in highly constrained geometries. The observed effect of pre-loading in low constraint specimens such as round notched bars is less. The local approach could not predict the differences and it is suggested that the variation of triaxiality factor, the ratio of hydrostatic stress to Von Mises, in the plastic zone, is a contributing factor
AB - This paper presents the results of an experimental and numerical study carried out to investigate the effect of warm pre-stressing on cleavage fracture in ferritic steels using cracked and notched specimens. It is shown that the local approach based on Weibull theory predicts the increase in toughness following warm pre-stressing in highly constrained geometries. The observed effect of pre-loading in low constraint specimens such as round notched bars is less. The local approach could not predict the differences and it is suggested that the variation of triaxiality factor, the ratio of hydrostatic stress to Von Mises, in the plastic zone, is a contributing factor
KW - Brittle Fracture
KW - Failure Probability
KW - Local Approach
KW - Triaxiality
U2 - 10.4028/www.scientific.net/kem.261-263.177
DO - 10.4028/www.scientific.net/kem.261-263.177
M3 - Article
VL - 261-263
SP - 177
EP - 182
JO - KEM
JF - KEM
ER -