Rise time in shock consolidation of materials
The rise time of a strong shock wave propagating through a porous material is estimated by analyzing the finite deformation of an elastic/viscoplastic spherical shell under impulsive pressure loading. The analysis examines explicitly the effects of dynamic loading rate and initial temperature and explains the relatively large shock rise times observed in porous materials. Results of the analysis provide a consistent and realistic interpretation of available experimental data.
©1994 American Institute of Physics. Received 20 May 1994; accepted 22 September 1994. The authors would like to acknowledge the support for this research by the Division of Materials Research of the National Science Foundation through Grant No. DMR-9396132, Program Director, Dr. B. MacDonald.