Abstract
This article presents an energy-based method to simulate ductile tearing under dynamic loading conditions. The strain rate-dependent material properties are characterized by the Johnson-Cook-type model. The damage model is defined based on the multi-axial fracture strain energy concept. The proposed damage model is applied to simulate the fracture toughness test of SA508 Gr. 1a under four different test speeds. Simulated results show a good overall agreement with the experimental results.
| Original language | English |
|---|---|
| Pages (from-to) | 177-189 |
| Number of pages | 13 |
| Journal | Journal of Strain Analysis for Engineering Design |
| Volume | 52 |
| Issue number | 3 |
| DOIs | |
| Publication status | Published - 2017 Apr 1 |
| Externally published | Yes |
Keywords
- Ductile fracture
- finite element damage analysis
- high strain rate condition
- multi-axial fracture strain energy locus
- strain rate effect
ASJC Scopus subject areas
- Modelling and Simulation
- Mechanics of Materials
- Mechanical Engineering
- Applied Mathematics