STUDY ON PROCESS AND MECHANICAL PROPERTIES OF THE VARI FORMING FOAM-CORE SANDWICH COMPOSITE BY DIFFERENT HANDING METHODS

Abstract

Abstract: In this paper, two kinds of methods were taken: grooves and holes to process foam core in advance, VARI molding process was used to prepare foam-core sandwich composite, the non-destructive test, the molding efficiency, the surface quality and the mechanical properties of the foam-core sandwich composite were studied. The results show that grooves and holes could improve the molding efficiency of the foam-core sandwich composite effectively, whose surface quality was good. The combine between foam core and skin of sandwich of three kinds of foam-core sandwich composite was tight, and poor glue and delaminations were not existing. The peel strength of the foam-core sandwich composite was decreased somewhat, while the bending strength and the edge compressive strength were increased slightly after the handing methods of grooves. The peel strength, the bending strength and the edge compressive strength of the foam-core sandwich composite were all decreased to some extent after the handing methods of holes. In general, different processes have little influence in mechanical properties of the VARI forming foam-core sandwich composite.

Key words: VARI, foam-core sandwich, composite, groove, hole

CLC Number:

TB332

SUN Yu, LIU Qiang, HUANG Feng, MA Jin-rui. STUDY ON PROCESS AND MECHANICAL PROPERTIES OF THE VARI FORMING FOAM-CORE SANDWICH COMPOSITE BY DIFFERENT HANDING METHODS[J]. Fiber Reinforced Plastics/Composites, 2017, 0(9): 89-92.

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