
Accession Number : AD0759168
Title : The Effect of Gravity upon the 'MeltThrough Time' of a Solid Subjected to a High Intensity Laser.
Descriptive Note : Master's thesis,
Corporate Author : AIR FORCE INST OF TECH WRIGHTPATTERSON AFB OHIO SCHOOL OF ENGINEERING
Personal Author(s) : Camburn,Gilbert L.
Report Date : MAR 1972
Pagination or Media Count : 94
Abstract : An analysis was made of the effect of gravity upon the 'meltthrough 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 computerprogrammed 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 watts/sq cm. The effect of gravity upon the 'meltthrough 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)
Descriptors : (*COHERENT RADIATION, MELTING), (*METAL PLATES, MELTING), MATHEMATICAL MODELS, HEAT TRANSFER, GRAVITY, TITANIUM, ALUMINUM, COMPUTER PROGRAMS, THESES, TIME
Subject Categories : Lasers and Masers
Solid State Physics
Thermodynamics
Distribution Statement : APPROVED FOR PUBLIC RELEASE