Method and system for predicting bonding performance of carbon fiber reinforced composite material and steel in marine environment and medium

By constructing a method for predicting the bonding performance of carbon fiber reinforced composites and steel in a marine environment, and combining seawater exposure and air exposure factors, the problem of long-term degradation effects not being considered in existing models is solved, and accurate prediction of the bonding interface performance is achieved, thus improving the prediction accuracy.

CN122290772AActive Publication Date: 2026-06-26XIHUA UNIV
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Patent Information

Application Number
CN202610726021.4
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2026-05-25
Publication Date
2026-06-26
Estimated Expiration
2046-05-25

AI Technical Summary

Technical Problem

Existing models fail to adequately consider the long-term deterioration effects of seawater exposure duration, temperature changes, wet-dry cycles, and different surface treatment processes on the bonding interface performance between carbon fiber reinforced composites and steel in real marine environments, resulting in insufficient accuracy in predicting bonding performance.

Method used

A method for predicting the bonding performance of carbon fiber reinforced composites to steel in a marine environment is established. By obtaining a baseline performance model and an exponential decay model, and combining the seawater exposure factor, air exposure factor, and long-term performance asymptotic value, a performance degradation model is constructed to accurately characterize the performance retention rate decay law of the bonding interface.

Benefits of technology

It enables accurate prediction of the performance of the bonding interface, decouples the influence of marine environmental factors, improves the accuracy of the prediction of the bonding interface performance, and provides reliable technical support for the reinforcement design of marine engineering structures.

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Abstract

The invention provides a method and system for predicting the bonding performance of a carbon fiber reinforced composite material and steel in a marine environment and a medium, and belongs to the field of high-performance composite material application, and the method comprises the steps: obtaining a preset reference performance model of a bonding interface of the carbon fiber reinforced composite material and steel, obtaining an exponential decay model, and calculating the bonding performance of the carbon fiber reinforced composite material and the steel; the exponential decay model is obtained based on a seawater exposure factor, an air exposure factor and a long-term performance asymptotic value; wherein the seawater exposure factor represents the damage degree of seawater to the bonding interface, and the air exposure factor represents the damage degree of air to the bonding interface; coupling the exponential decay model with the reference performance model to obtain a performance degradation model of the bonding interface in the marine environment; and based on the performance degradation model, determining the bonding performance of the bonding interface in the marine environment. Through the method provided by the invention, the problem of long-term degradation effect of the real marine environment can be quantified, and the prediction precision of the bonding interface performance is improved.
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