Strength properties of an aluminum melt at extremely high tension rates under the action of femtosecond laser pulses

Abstract

The dynamics of the melting of a surface nanolayer and the formation of thermal and shock waves in metals irradiated by femtosecond laser pulses has been investigated both experimentally and theoretically. A new experimental-computational method has been implemented to determine the parameters of laser-induced shock waves in metallic films. Data on the strength properties of the condensed phase in aluminum films at an extremely high strain rate ( $$ \dot V $$ /V ∼ 109 s−1)under the action of a laser-induced shock wave have been obtained.