CALCULATION OF THE NONSTATIONARY, NONLINEAR THREE-DIMENSIONAL 
PROBLEM OF HEAT CONDUCTION BY THE FINITE-ELEMENT METHOD 
IN CONTINUOUS LASER HEATING

E. I. Degtyarev

UDC 536.2

The process of nonstationary high-intensity laser surface 
heating of a three-dimensional body in the shape of a rectangular 
parallelepiped by a continuous laser with a normal distribution of 
the power density in the heating spot has been investigated numerically 
with the finite-element method. Consideration has been given to the 
process of formation of the heat-affected zone and its geometry. Thermal 
cycles of zonal points and their characteristics have been investigated.

N. E. Bauman Moscow 
State Technical University, Moscow, Russia; email: degtyarev@box.vsi.ru. 
Translated from Inzhenerno-Fizicheskii Zhurnal, Vol. 76, No. 6, pp. 
156-160, November-December, 2003. Original article submitted 
September 17, 2002; revision submitted March 24, 2003.