Study on the analysis method and influence factors of the repair of composite laminate by adhesive bonding

doi:10.19936/j.cnki.2096-8000.20240328.013

Abstract

Abstract: The strength characteristics analysis and evaluation method of composite laminates after repair and repair by bonding were studied, and a numerical analysis method was proposed to simulate the gradual failure process and strength prediction of composite repair and repair structures. The tensile tests of non-destructive specimens and wedge repair specimens were designed and completed to verify the validity and accuracy of the calculation model. Finally, using the proposed numerical analysis model, the influence analysis of composite material repair parameters is carried out. It is found that 5° is the optimal repair angle, and the thickness of the adhesive layer is 0.1 mm. When the 0° and ±45° layers in the patch layer account for 50% respectively, the repair laminate has the highest bearing capacity.

Key words: composite materials, bonding repair, strength, failure analysis, repair parameters

CLC Number:

TB332

SONG Guibin, HUANG Guangqi, YANG Shengchun. Study on the analysis method and influence factors of the repair of composite laminate by adhesive bonding[J]. COMPOSITES SCIENCE AND ENGINEERING, 2024, 0(3): 91-96.

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