CALCULATION OF ELASTIC THERMAL-STRESS AT QUASI-STEADY-STATE WITH LASER TREATMENT OF NONMELTING SURFACE

A distribution model of the internal thermal stress for the material s urface scanned by laser with arbitary power distribution is reduced in terms of thermal elastic theory of continuous medium and is based on the regard radiation surface as semi-infinity. Because of introducing to concept of imaginary sources, the result acquired by reduced can be used to simulate the thermal stress distribution of practical parts w ith parts with parallelepipedic boundary.