Table 2 Calculated values of rate of evolution of void fraction for the various strain rate (s−1) using a velocity of 1 km/s and varying pulse durations for the piston for the various polycrystalline Al microstructures.

From: The Quasi-Coarse-Grained Dynamics Method to Unravel the Mesoscale Evolution of Defects/Damage during Shock Loading and Spall Failure of Polycrystalline Al Microstructures

Grain Size (nm)

Strain Rate, \(\dot{\varepsilon }\) (s−1)

Void Growth rate, \({\dot{V}}_{f}\) (ps−1)

50 (MD)

7.17 × 109

0.0075

100 (L2)

3.46 × 109

0.0034

200 (L4)

1.74 × 109

0.0017

400 (L8)

8.17 × 108

0.00089

800 (L16)

4.43 × 108

0.00051

3200 (L64)

1.15 × 108

0.00014

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