Strain , particle velocity , and stress waves in a smooth plane wave front calculated for , , and . The heavy solid line is the curve connecting the rears of the steady precursors. The heavy dotted line is the Sano’s decay curve up to .
Schematic diagrams of (a) first, (b) second, and (c) third types of the dynamic stress -strain relation in LiF . The first type is caused by a weak-discontinuity plane wave composed of a precursor, a follower C, and a plastic wave, the second by that composed of a precursor, a follower I or II, and a plastic wave, and the third by that composed of a precursor, a follower or , and a plastic wave. The slopes of the tangent at the point on the relation immediately behind the kink for the followers C, I, II, , and , , , , , and , satisfy inequalities , , , , and , respectively. Here , is the slope at the time immediately before the follower I changes into the follower II.
Stress-time profiles measured by Arvidsson et al. (Ref. 4) for 1060-0 aluminum specimens of thicknesses 1.38, 1.58, 3.03, 3.60, 4.65, 7.86, and .
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