EFFECTS OF INTERFACE POLLUTION ON COMPOSITEINTERLAMINAR FRACTURE TOUGHNESS

Abstract

Abstract: In order to analyze the effect of interface pollution on the composite inter-laminar performance of fiber glass reinforced composites (FRP), the double cantilever beam (DCB) specimens with interface pollution were tested. The crack propagation process of the DCBs was simulated using the finite element method with the virtual crack closure technique (VCCT). It is found that the mode Ⅰ inter-laminar fracture toughness of the specimens with interface pollution is lower than that of the specimens without interface pollution. The variance of the specimens with interface pollution is higher than that of the specimens without interface pollution. The simulation results are in good agreement with the experimental results. The prediction of delamination load using VCCT is feasible.

Key words: interface pollution, fiber glass reinforced composites, mode Ⅰ inter-laminar fracture toughness, vitual crack closure technique

CLC Number:

TB332

LI Zhan-ying, LI Jin-hua, LU Xiao-feng. EFFECTS OF INTERFACE POLLUTION ON COMPOSITEINTERLAMINAR FRACTURE TOUGHNESS[J]. Fiber Reinforced Plastics/Composites, 2018, 0(9): 58-62.

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