THE WHOLE AND LOCAL FLEXURAL PERFORMANCE OF SANDWICH BEAMS WITH DIFFERENT FACE THICKNESS

Abstract

Abstract: This paper presents the work on the whole and local flexural performance of sandwich beams with three different face thickness. First, three point bending tests were carried out to explore their flexural behavior. Test results show that, the failure mode of the sandwich beams concluded core indentation failure and core shear failure. Second, high-order theory base on variational principles was proposed to analyze the deflection and the strain distribution of the top and bottom faces at different location. Finally, analysis of failure load of the sandwich beams were conducted and gained good agreement with the experimental results.

Key words: composite, sandwich beam, face thickness, bending, local indentation, VARTM

CLC Number:

TB332

ZHANG Fu-bin, LIU Wei-qing, QI Yu-jun, FANG Hai. THE WHOLE AND LOCAL FLEXURAL PERFORMANCE OF SANDWICH BEAMS WITH DIFFERENT FACE THICKNESS[J]. COMPOSITES SCIENCE AND ENGINEERING, 2015, 0(5): 21-26.

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