Void Coalescence Model for Ductile Damage
Abstract
A model for void coalescence for high strain rate ductile damage in metals is presented. The basic mechanism is void linking through an instability in the intervoid ligament. The formation probability of void clusters is calculated, as a function of cluster size, imposed stress, and strain. A wave speed limiting is applied to the cluster size enhancement of cluster growth. Due to lack of space, model formulas are merely described and not derived.
- Publication:
-
Shock Compression of Condensed Matter
- Pub Date:
- July 2002
- DOI:
- 10.1063/1.1483613
- Bibcode:
- 2002AIPC..620..611T
- Keywords:
-
- Crystal Defects;
- Ductility;
- Fracturing;
- Metals;
- Shock Waves;
- Strain Rate;
- Voids;
- 62.20.Fe;
- 61.72.Qq;
- 81.05.Bx;
- 62.50.+p;
- Solid-State Physics;
- Deformation and plasticity;
- Microscopic defects;
- Metals semimetals and alloys;
- High-pressure and shock wave effects in solids and liquids