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(a) Foam specimen as prepared for dynamic compression. (b) Foam specimen after dynamic compression showing several densified pieces among other crushed pieces. [(c) and (d)] Electron micrographs of a densified piece of a dynamically compressed foam.
Dynamic stress-strain response of foams of varying relative density (reported in % porosity) for strain rates of 3000.
A comparison of the stress-strain response of two 60% porosity foams under applied strain rates of 3500 and .
Relative strength plotted against relative density for foams tested under low and high applied strain rates. The inset shows a data for quasistatic and dynamic compression of aluminum foams (Ref. 19). Solid lines are power-law fits to the data.
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