Pressure pulse from a laser pulse acting on a composite
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These tests on quasistationary irradiated for polyethylene-matrix powder-filled composites show that the filler composition and content have marked effects on the damage.
There are ranges where the specific loss, the pressure, and the integral recoil pulse decrease as the power density increases because of changes in the damage mechanism, which are most prominent for zirconium oxide as filler. Bulk absorption contributes considerably, and causes various types of defect. Estimates have been made of the pressures arising in explosive matrix decomposition in the bulk together with the specific damage energies.
These measurements are useful in modeling laser effects on composites.
KeywordsZirconium Laser Pulse Explosive Power Density Pressure Pulse
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