Theoretical and numerical modelling of a pulsed laser induced spallation test
The purpose of this work is to develop a reliable, quantitative method to determine the tensile strength of substrate/coating interfaces based on a pulsed laser spallation technique. The incident laser energy causes explosive evaporation of an absorbing material, sandwiched between the substrate and a confining plate, sending a compressive shock wave through the substrate towards the material interface. The adopted approach is based on the simultaneous solution of the radiation hydrodynamic equations and the equations of state of the energy absorbing agent. The developed model is calibrated against experimental data for the induced stress pulse, based on a piezoelectric device.
Bibliographic Reference: Paper presented: 4th International Symposium on Advanced Composites, Corfu (GR), September 18-22, 1995
Availability: Available from (1) as Paper EN 39182 ORA
Record Number: 199511346 / Last updated on: 1995-10-31
Original language: en
Available languages: en