A void growth-based failure model to describe spallation
- 15 February 1989
- journal article
- Published by AIP Publishing in Journal of Applied Physics
- Vol. 65 (4) , 1521-1527
- https://doi.org/10.1063/1.342967
Abstract
A new dynamic failure model to describe void nucleation, growth, and coalescence in ductile metals is reported. The model is based on a pressure-dependent yield criterion for compressible plastic flow. This three-dimensional, plasticity-based continuum damage model is incorporated into a finite difference, wave propagation code. A procedure to determine the failure model parameters is proposed. In this procedure, the model parameters are calibrated based on the ability to match the experimental free-surface velocity history with code simulations. Model parameters for oxygen-free high-conductivity copper have been determined successfully using this procedure.This publication has 16 references indexed in Scilit:
- The response of materials to dynamic loadingInternational Journal of Impact Engineering, 1987
- Dynamic fracture (spalling) of metalsProgress in Materials Science, 1983
- Interpretation of shock-wave data for beryllium and uranium with an elastic-viscoplastic constitutive modelJournal of Applied Physics, 1981
- Dynamic fracture and spallation in ductile solidsJournal of Applied Physics, 1981
- A constitutive model for metals applicable at high-strain rateJournal of Applied Physics, 1980
- Spall studies in uraniumJournal of Applied Physics, 1977
- Theory of spall damage accumulation in ductile metalsJournal of the Mechanics and Physics of Solids, 1977
- Dynamic fracture criteria for a polycarbonateJournal of Applied Physics, 1973
- A criterion for the time dependence of dynamic fractureInternational Journal of Fracture, 1968
- A Criterion for Ductile Fracture by the Growth of HolesJournal of Applied Mechanics, 1968