Abstract
The Essential Work of Fracture (EWF) method is adopted to study the ductile tearing resistance of Dual-Phase steel (DP 780) sheet of 1 mm nominal thickness. All the three characterizing parameters, namely EWF, estimate of crack tip opening displacement (CTOD) for crack initiation and crack tip opening angle (CTOA), that can be determined by the EWF testing paradigm have been examined. It is concluded that, of these three parameters, the CTOA estimated by this easy and rapid procedure is the best choice both in terms of statistical robustness and for potential application in integrity assessment.
| Original language | English |
|---|---|
| Article number | 102278 |
| Journal | Theoretical and Applied Fracture Mechanics |
| Volume | 103 |
| Early online date | 19 Jun 2019 |
| DOIs | |
| Publication status | Published - Oct 2019 |
| Externally published | Yes |
Bibliographical note
Publisher Copyright:© 2019
Funder
Funding Information:The authors acknowledge M/s TATA Steel, India for providing the test material. SKR acknowledges the Ministry of Steel (Government of India) for financial support during the course of this investigation. RS acknowledges the fellowship received from Centre of Excellence, Technical Education Quality Improvement Programme. Jadavpur University, Kolkata for carrying out the present investigation.
Keywords
- CTOA
- CTOD
- DENT specimens
- Dual-phase steel
- EWF method
ASJC Scopus subject areas
- General Materials Science
- Condensed Matter Physics
- Mechanical Engineering
- Applied Mathematics