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Durability Analysis of CFRP Adhesive Joints: A Study Based on Entropy Damage Modelling Using FEM
Summary
This paper is not relevant to microplastics research — it analyzes fatigue lifetime prediction methods for carbon fiber reinforced polymer adhesive joints using entropy-based damage models.
Experimental methodologies for fatigue lifetime prediction are time-intensive and susceptible to environmental variables. While the cohesive zone model is popular for predicting adhesive fatigue lifetime, entropy-based methods have also shown promise. This study aims to provide an understanding of the durability characteristics of CFRP adhesive joints by incorporating an entropy damage model within the context of the finite element method (FEM), examined the effects of different adhesive layer thicknesses on SLS models. As the adhesive layer increased in thickness, DAMAGE VARIABLES initially rose and then declined, peaking at 0.3mm. This finding provides crucial understanding into the stress behavior at the resin-CFRP interface and the resin's fatigue mechanisms.
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