A Method of Mechanical Properties Temperature Dependence Test by Two-sided Laser Irradiation Heating

摘要

For mechanical properties temperature dependence test in high temperature rising rate, a method of heatingspecimen using two-sided laser irradiation is proposed. Simulation about different materials in laser heating about differentlaser power density and different laser duration were conducted. The result shows that two-sided laser irradiation canobviously improve the temperature field of the specimen in normal laser irradiating. The simulation shows that this methodis better for metal than composite materials because of the heating pyrolisys may have a bad influence on the thermalbalance. Based on this method, the tensile strength temperature dependence of the T700 carbon fiber laminate was obtained.The result is close to the parameter obtained in electrical mechanical machine by furnace heating. The research can makea reference for the mechanical properties test of composite materials or metal in high temperature with high heating rate.