Characterization and optimization of interfacial properties parameters for carbon fiber reinforced plastic/ethylene propylene diene monomer

doi:10.19936/j.cnki.2096-8000.20250628.012

Abstract

Abstract: In order to obtain the interfacial properties parameters of carbon fiber reinforced plastic(CFRP)/ethylene propylene diene monomer (EPDM) adhesive for engines, this paper obtained the interfacial fracture energy and experimental curves based on DCB specimens and bilinear cohesive force models. Combined with the DCB simulation platform built using ABAQUS, the simulation curves were output. Based on the difference between the simulation curve and the experimental curve, establish a formula for the overlap between the simulation curve and the test curve as the optimization objective function. Use optimization algorithms such as response surface to solve for the minimum value of the function and its corresponding variable values, and obtain the accurate values of the interface properties parameters. This article uses a combination of properties testing, numerical simulation, and optimization calculation to obtain the properties parameters of the CFRP/EPDM adhesive interface, and verifies the parameters based on testing and simulation. The results are in good agreement, providing a criterion for interface failure and failure of engines in service engineering.

Key words: carbon fiber composite materials, adhesive interface, fracture energy, numerical simulation, inversion optimization

CLC Number:

TB332

FANG Shirui, DING Anxin, YANG Fan, TANG Zijia, ZHAO Fei. Characterization and optimization of interfacial properties parameters for carbon fiber reinforced plastic/ethylene propylene diene monomer[J]. COMPOSITES SCIENCE AND ENGINEERING, 2025, 0(6): 85-93.

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