Abstract
In this study the emergence of the critical status of crack growth in the chevron-notch fracture test on elastic-plastic materials is discussed. The theoretical analysis and experimental results showed that the critical crack length for elastic-plastic materials is not a constant, and that it is not only a function of material properties, but also a function of the speed of crack growth. In particular, it is shown theoretically that for elastic-plastic materials the critical status of crack growth often occurs after the peak load.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 343-353 |
| Number of pages | 11 |
| Journal | Engineering Fracture Mechanics |
| Volume | 61 |
| Issue number | 3-4 |
| DOIs | |
| State | Published - Sep 1998 |
Bibliographical note
Funding Information:This study was supported by MDRCBB and the 3M Company, Dental Products Division.
Keywords
- Chevron-notch fracture test
- Critical crack length
- Critical status of crack growth
- Fracture toughness of elastic-plastic materials