EXPERIMENTAL STUDY ON BULKING DEFECTS EFFECTING ON COMPRESSION BEHAVIOR OF THICK FRP LAMINATES

Abstract

Abstract: FRP(fiber reinforced polymer) materials made from VARTM (Vacuum-Assisted Resin Transfer Molding) could be manufactured with various bulking defects. This article employs thick-slab FRP members which was manufactured by steel molds of high precision to derive the load-displacement curve of normal specimen and bulking specimen under compression. The experiment shows that the compression capacity of bulking members is merely 66.4% of the normal specimen, with the axial cracks occurring near the outward resin part. With FEM methods, a strength criterion of Mises stress of resin is derived and testified.

Key words: VARTM, composite materials, bulking, compression strength, damage mode, ultimate bearing capacity

CLC Number:

TB332

XU Song-jian, SUN Qi-li, WANG Jia-ji, FENG Peng. EXPERIMENTAL STUDY ON BULKING DEFECTS EFFECTING ON COMPRESSION BEHAVIOR OF THICK FRP LAMINATES[J]. COMPOSITES SCIENCE AND ENGINEERING, 2014, 0(4): 27-31.

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EXPERIMENTAL STUDY ON BULKING DEFECTS EFFECTING ON COMPRESSION BEHAVIOR OF THICK FRP LAMINATES

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