论文信息 - Shock pulse attenuation in a nonlinear viscoelastic solid

Shock pulse attenuation in a nonlinear viscoelastic solid

Abstract T hin , one-dimensional shock pulses were generated in a nonlinear viscoelastic material (polymethyl methacrylate) by a new experimental technique. The observed pulse attenuation was compared with an approximate theory based on the viscoelastic shock amplitude equation. The central assumption of this approximate theory is that the unloading wave propagates as a simple wave. Given an initial pulse shape it is shown that the attenuation and the pulse shape at any later time are accurately approximated. The calculated attenuation in polymethyl methacrylate agreed well with the experimental results.

K. W. Schuler | J. W. Nunziato | J. Nunziato

[1] J. Nunziato,et al. Acoustical determination of stress relaxation functions for polymers , 1973 .

[2] J. Asay,et al. Determination of Material Relaxation Properties from Measurements on Decaying Elastic Shock Fronts , 1972 .

[3] G. E. Duvall,et al. Stress relaxation behind elastic shock waves in rocks , 1966 .

[4] K. W. Schuler,et al. Critical-Induced Acceleration for Shock Propagation in Polymethyl Methacrylate , 1971 .

[5] G. R. Fowles. Attenuation of the Shock Wave Produced in a Solid by a Flying Plate , 1960 .

[6] M. Gurtin,et al. On the growth of one-dimensional shock waves in materials with memory , 1970 .

[7] L. M. Barker,et al. Interferometer Technique for Measuring the Dynamic Mechanical Properties of Materials , 1965 .

[8] K. W. Schuler. Propagation of steady shock waves in polymethyl methacrylate , 1970 .