Abstract
This paper addresses the accuracy of the experimental J estimation equation based on the load-CMOD curve for SE(B) specimens, proposed by Kirk and Dodds. Systematic investigations, based on 2-D FE analysis with realistic stress strain data for various materials, show that the estimation equation by Kirk and Dodds is not sensitive to the material but shows a large error for very deep cracks such as a/W=0.7. Based on slip line field analysis, a slight modification to the J estimation equation by Kirk and Dodds is given, then provides consistent results for all possible crack lengths.
| Original language | English |
|---|---|
| Pages (from-to) | 133-138 |
| Number of pages | 6 |
| Journal | Key Engineering Materials |
| Issue number | 187 PART 1 |
| Publication status | Published - 2000 |
| Externally published | Yes |
Keywords
- Finite Element Analysis
- J-Integral
- Limit Analysis
- Toughness Testing Standards
ASJC Scopus subject areas
- General Materials Science
- Mechanics of Materials
- Mechanical Engineering