Accession Number:

AD0759168

Title:

The Effect of Gravity upon the 'Melt-Through Time' of a Solid Subjected to a High Intensity Laser.

Descriptive Note:

Master's thesis,

Corporate Author:

AIR FORCE INST OF TECH WRIGHT-PATTERSON AFB OHIO SCHOOL OF ENGINEERING

Personal Author(s):

Report Date:

1972-03-01

Pagination or Media Count:

94.0

Abstract:

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

Subject Categories:

  • Lasers and Masers
  • Solid State Physics
  • Thermodynamics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE