The Effect of Gravity upon the 'Melt-Through Time' of a Solid Subjected to a High Intensity Laser.
AIR FORCE INST OF TECH WRIGHT-PATTERSON AFB OHIO SCHOOL OF ENGINEERING
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An analysis was made of the effect of gravity upon the melt-through time of a solid subjected to a high intensity laser. The analysis was accomplished by dividing a slab into a number of finite elements and performing an energy and force balance for each finite element, resulting in a computer-programmed mathematical model. Two metals, aluminum and titanium, each having a thickness of either 0.08 or 0.127 cm, were considered using absorbed peak intensities that ranged from 2,000 to 256,000 wattssq cm. The effect of gravity upon the melt-through time was found to be dependent upon the physical properties of the solid, the magnitude of the absorbed peak intensity, the thickness of the solid and, to a lesser degree, upon the type of distribution of the incident radiation. Author Modified Abstract
- Lasers and Masers
- Solid State Physics