Thermal And Mechanical Response Analasis Of Thin-walled Structures Irradiated By Laser

When a thin-walled structure is irradiated by intense laser, a very hightemperature gradient can be produced within the thin-walled structure, and the rangeof the influence of the temperature gradient is mainly reflected in the laser spot region.For purpose of further research the thermal and mechanical response of thethin-walled structure under laser irradiation, the present thesis analyzed and calculatedthe temperature field, the displacement and the thermal stress field of the thin-walledstructure under laser irradiation (partial heated). The main research contentsincluding:(1) Modeling and simulating the temperature field of a thin-walled circular plateunder laser irradiation using Abaqus software, and comparing the results with the testresults to verify the accuracy of the numerical simulation model(2) Simulating the temperature field of the composite thin-walled plate undervarious laser pot radius, laser power intensity and various boundary condition, andanalyzing the influence of the change of the parameter of the laser and the change ofthe boundary condition to the temperature filed distribution of the compositethin-walled plate;(3) Simulating the displacement field and the thermal stress field of thecomposite thin-walled plate under various laser pot radius, laser power intensity andvarious boundary condition, and analyzing the influence of the change of theparameter of the laser and the change of the boundary condition to the displacementfiled and the thermal stress field distribution of the composite thin-walled plate.