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Ultra-violet(UV)curing is an efficient method for composite molding.Firstly,thermophysical properties of UV cured glass-fiber reinforced plastics are conducted.Material properties are studied for various kinds of postcuring modes.Then the UV curing method is suggested in manufacturing V-crimp folded core for sandwich panels.Two kinds of processing schemes for V-crimp folded core manufacturing using UV curing are presented.Finally,the effect of post-curing on the mechanical properties of folded core sandwiches is experimentally studied,and optimum modes of post-curing are determined.The experimental results show that the ultimate compressive strength of the folded sandwiches is increased by 60% after post-curing with the optimum post-curing mode.
Ultra-violet (UV) curing is an efficient method for composite molding. Firstly, thermophysical properties of UV cured glass-fiber reinforced plastics are conducted. Material properties are studied for various kinds of postcuring modes.Then the UV curing method is suggested in manufacturing V-crimp folded core for sandwich panels. Two kinds of processing schemes for V-crimped folded core manufacturing using UV curing are presented. Finally, the effect of post-curing on the mechanical properties of folded core sandwiches is experimentally studied, and optimum modes of post-curing are determined that the ultimate compressive strength of the folded sandwiches is increased by 60% after post-curing with the optimum post-curing mode.