A damage mechanics based approach for developing a quantitative understanding of ductile fracture.
- William R.
- Davis L.
- Daniel S.
A self-consistent damage mechanics approach for describing ductile fracture is introduced. This approach consists of damage quantification of incipiently failed specimens resulting from well-controlled and diagnosed experiments that span a wide parameter space of stress triaxiality, strain rate, and equivalent plastic strain. Numerical simulations are performed of these experiments using damage constitutive models and the simulation predictions are compared with the experimental measurements and post-mortem damage quantification, with the goal of developing, validating, and calibrating the damage constitutive models. New developments are described, such as the coupling between void and deformation bands.
- Research Organization:
- Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)
- Sponsoring Organization:
- USDOE
- OSTI ID:
- 977864
- Report Number(s):
- LA-UR-04-6559; TRN: US201012%%778
- Resource Relation:
- Conference: Submitted to: Plasticity 2005 Meeting, Jan. 2005, Kauai
- Country of Publication:
- United States
- Language:
- English
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