J. Phys. IV France
Volume 110, September 2003
Page(s) 893 - 898

J. Phys. IV France
110 (2003) 893
DOI: 10.1051/jp4:20020807

Coalescence rate model for ductile damage in metals

D.L. Tonks, A.K. Zurek and W.R. Thissell

Los Alamos National Laboratory, Los Alamos, NM 87545, U.S.A.

A cell model for void coalescence for ductile damage in metals is presented. The basic mechanism is void linking through an instability in the intervoid ligament. The model treats the average void and intervoid ligament behavior after the onset of the instability. The model can be used for the porosity evolution and point of fracture. Practical numerical models for hydrocode use are developed.

© EDP Sciences 2003