Mechanistic investigation of reinforcement in carbon fiber reinforced polymer (CFRP)  page-type adhesive-bonded joints

doi:10.19936/j.cnki.2096-8000.20260828.013

Abstract

Abstract: A comb-shaped page type adhesive joint structure was proposed to enhance the tensile performance of carbon fiber reinforced polymer (CFRP) connections. A finite element analysis model of the joint was established based on the Hashin failure criterion and cohesive zone model (CZM), while page-type joints and single-lap joints were designed, fabricated, and subjected to tensile tests. Results demonstrate that: the simulated failure load of the page-type joint is 19 666 N, with an experimental mean value of 16 729 N (14.9% deviation). The failure modes include cohesive damage in the adhesive layer and fiber tearing in CFRP adherends, and the consistent failure morphologies between simulation and experiments validate the accuracy of the finite element model. Compared with single-lap joints of the same dimensions, the page-type joint exhibits a 4.09-fold increase in average failure load. Structural optimization of the page-type joint enables balanced strength design between the adhesive layer and adherends, providing an efficient design solution for lightweight composite connections.

Key words: carbon fiber reinforced ploymer, page type adhesive joint, finite element analysis, tensile stren-gth, damage mechanism

CLC Number:

TB332

YANG Mo, XI Jianan, WAN Shuai, HU Jinkai, XUAN Hao, ZHOU Yuebin. Mechanistic investigation of reinforcement in carbon fiber reinforced polymer (CFRP) page-type adhesive-bonded joints[J]. COMPOSITES SCIENCE AND ENGINEERING, 2026, 0(8): 102-108.

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Mechanistic investigation of reinforcement in carbon fiber reinforced polymer (CFRP) page-type adhesive-bonded joints

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