Abstract
| Original language | English |
|---|---|
| Title of host publication | Proceedings |
| Subtitle of host publication | 13th International Conference on Fracture ICF 2013 |
| Place of Publication | Red Hook, NY, USA |
| Publisher | Curran Associates Inc. |
| Number of pages | 9 |
| ISBN (Print) | 978-1-62993-369-6 |
| Publication status | Published - 2013 |
| MoE publication type | Not Eligible |
| Event | 13th International Conference on Fracture 2013, ICF-13 - Beijing, China Duration: 16 Jun 2013 → 21 Jun 2013 |
Conference
| Conference | 13th International Conference on Fracture 2013, ICF-13 |
|---|---|
| Abbreviated title | ICF 2013 |
| Country | China |
| City | Beijing |
| Period | 16/06/13 → 21/06/13 |
Fingerprint
Keywords
- Master Curve
- cleavage fracture
- temperature dependence
Cite this
}
The Elusive temperature dependence on the Master Curve. / Wallin, Kim.
Proceedings: 13th International Conference on Fracture ICF 2013. Red Hook, NY, USA : Curran Associates Inc., 2013.Research output: Chapter in Book/Report/Conference proceeding › Conference article in proceedings › Scientific › peer-review
TY - GEN
T1 - The Elusive temperature dependence on the Master Curve
AU - Wallin, Kim
PY - 2013
Y1 - 2013
N2 - The Master Curve methodology for describing cleavage fracture toughness, scatter, size-effects and temperature dependence has been standardized in ASTM E1921. The scatter and size-effects predicted by the method are based on theory, whereas the temperature dependence is the result of empirical observations. The reason for the seemingly nearly invariant temperature dependence of the cleavage fracture toughness of different steels has until now eluded theoretical explanations. The standard fracture toughness temperature dependence is expressed in terms of the normalization fracture toughness K0. However, K0 is really the product of three separate parameters, Kmin, K0i and P(K8), all of which are temperature dependent. Kmin is related to the steepness of the stress distribution in front of the crack, K0i is connected to the likelihood of initiation and P(K8) describes the likelihood of cleavage crack propagation in a unified stress field. This presentation gives some more insight into the factors that lead to the experimentally observed temperature dependence. Finally, a new more material specific temperature dependence usable instead of the standard expression is given
AB - The Master Curve methodology for describing cleavage fracture toughness, scatter, size-effects and temperature dependence has been standardized in ASTM E1921. The scatter and size-effects predicted by the method are based on theory, whereas the temperature dependence is the result of empirical observations. The reason for the seemingly nearly invariant temperature dependence of the cleavage fracture toughness of different steels has until now eluded theoretical explanations. The standard fracture toughness temperature dependence is expressed in terms of the normalization fracture toughness K0. However, K0 is really the product of three separate parameters, Kmin, K0i and P(K8), all of which are temperature dependent. Kmin is related to the steepness of the stress distribution in front of the crack, K0i is connected to the likelihood of initiation and P(K8) describes the likelihood of cleavage crack propagation in a unified stress field. This presentation gives some more insight into the factors that lead to the experimentally observed temperature dependence. Finally, a new more material specific temperature dependence usable instead of the standard expression is given
KW - Master Curve
KW - cleavage fracture
KW - temperature dependence
M3 - Conference article in proceedings
SN - 978-1-62993-369-6
BT - Proceedings
PB - Curran Associates Inc.
CY - Red Hook, NY, USA
ER -