Behavior of short and long high amplitude pulses on an Al-W composite with cylindrical inclusions

The nature of short and long duration high amplitude pulses is explored in a periodic composite made of an Al matrix with W cylindrical inclusions using numerical calculations. Their wave nature is compared to the observed solitary like waves created by high amplitude short duration impact, or steady shock waves created by long duration high amplitude incoming pulses in Al-W laminates. Both composites have the same volume content of components to explore the role of mesostructure on the wave nature. The observed stress wave, in the case of short duration impact doesn’t propagate as a localized solitary like wave, as was the case in the laminate. For a long duration, high amplitude loading, a shock wave is observed similar to the one propagating in the laminate.