EFFECTS OF SPRAY GLUE ON COMPOSITES SHEAR MECHANICAL PROPERTIES OF WIND TURBINE BLADE

Abstract

Abstract: Effects of spray glue on composites shear properties of wind turbine blade in vacuum injection process were studied. The process of laying different type of fiber glass cloths on mould fixed by glue was simulated in the laboratory. Fiber glass reinforced polymer (epoxy resin) matrix composites (GFRP) were fabricated by vacuum injection process. The different groups of fiber glass content was tested by the method of calcined.The influence of fiber content on in-plane shear strength was analyzed in theory. Interlaminar shear strength of GFRP laminates was tested by mechanical testing machine. Results show that, the fiber glass content of the GFRP was almost the same as the spray glue was used on the undirectional fiber glass cloths, but for triaxial fiber glass cloths, it decreased by 6.9% in volume. Interlaminar shear strength of composites with unidirectional fiber glass cloths decreased by 61.4 %, and that of the composites with triaxial fabrics decreased by 18.8%. Therefore, spray glue on unidirectional fabric cloths should be prohibited. The triaxial cloths could be fixed by glue in moderation.

Key words: wind turbine, composites, vacuum injection process, shear strength

CLC Number:

TB332
TQ313

PAN Zu-jin, WU Jian-zhong, LIU Jian, SUN Yuan-rong. EFFECTS OF SPRAY GLUE ON COMPOSITES SHEAR MECHANICAL PROPERTIES OF WIND TURBINE BLADE[J]. Fiber Reinforced Plastics/Composites, 2016, 0(9): 39-43.

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