Abstract
The Essential Fracture Work Method was simulated by elastic-plastic finite element analysis by using the crack-tip opening angle fracture criterion (CTOA) and the constitutive relation of the material under consideration. The load-displacement curves and JR-curves for samples with different ligament length could be calculated for any given specimen geometry. Finite element analyses was carried out for deep double-edge-notched tension (DENT), deep centre-notched tension (DCNT), single-edge-notched tension (SENT) and centre-lined ligament loading (CLLL) samples. For a grade of high-density polyethylene (HDPE) thin sheets very good agreement between numerical predicted results and experimental data was obtained for DENT and DCNT specimens. Linear relationships between the specific total fracture work and ligament length as well as the final elongation and ligament length were found for all DENT, DCNT, SENT and CLLL samples. The equivalence between we and Jc was also confirmed.
| Original language | English |
|---|---|
| Pages (from-to) | 175-186 |
| Number of pages | 12 |
| Journal | European Structural Integrity Society |
| Volume | 27 |
| Issue number | C |
| DOIs | |
| Publication status | Published - 2000 |
| Externally published | Yes |
Keywords
- Essential work of fracture method
- J-integral
- numerical simulations
- specific essential fracture work
ASJC Scopus subject areas
- Civil and Structural Engineering
- Mechanics of Materials