Abstract
A nondestructive method of measurement is being developed for the purpose of investigation of the dynamic behavior of solids, especially concerned with nonlinear elasticity. In this paper, we discuss a method of generation of reproducible acoustic shock pulses in various solids, and also discuss the measurements of the stress-strain relationship using intensive acoustic shock pulses. Results obtained are the following: In aluminum samples, a linear relationship between stress and strain is found experimentally for acoustical pressures up to 130 bar before annealing and also up to 65 bar after annealing. On the other hand, after annealing the specimens, we found a variation of pulse shape and a decrease of peak value compared with the pulse shape before annealing. A qualitative discussion is given of photographs of changes in the shapes of the shock pulses that have propagated through solids.
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