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Study on stripping mechanism of steel plate strengthened with carbon fiber reinforced polymer by cohesive zone model
Advances in Structural Engineering ( IF 2.6 ) Pub Date : 2020-04-24 , DOI: 10.1177/1369433220912348
Xi-Zhi Wu 1, 2 , Wei-Kang Yang 3 , Xian-Jun Li 1
Affiliation  

When carbon fiber reinforced polymer is applied to reinforce a steel plate, the end of it tends to debond which could cause a failure. In this article, the finite element model of carbon fiber reinforced polymer–reinforced steel plate was established based on the cohesive zone model and validated by the linear elasticity model and experiments at bonding stage and stripping stage, through which the stripping mechanism of the adhesive layer was studied. It had been proved by the test results of carbon fiber reinforced polymer–reinforced steel plate that the shear stress was the main factor of stripping damage, the whole stripping process consisted of elastic deformation, softening and stripping, and that the stripping began from the end to the middle of carbon fiber reinforced polymer until complete failure. Therefore, the cohesive zone model was suitable for the analysis of carbon fiber reinforced polymer–reinforced steel plate.

中文翻译:

基于黏聚区模型的碳纤维增强聚合物增强钢板剥离机理研究

当碳纤维增强聚合物用于增强钢板时,它的末端往往会脱粘,这可能会导致失效。本文基于内聚区模型建立碳纤维增强聚合物增强钢板有限元模型,并通过线弹性模型和粘结阶段和剥离阶段的实验进行验证,通过该模型对胶层剥离机理进行了验证。被研究了。碳纤维增强聚合物增强钢板试验结果证明,剪切应力是剥离破坏的主要因素,整个剥离过程由弹性变形、软化和剥离组成,剥离从末端开始。到碳纤维增强聚合物中间直至完全失效。所以,
更新日期:2020-04-24
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