Sai Zhao , Jia Huang , Junchao Cao , Yong Chen , Xiaobiao Zuo , Kai Yi , Chao Zhang
{"title":"厚度对碳/凯芙拉混合复合材料弹道冲击行为的影响","authors":"Sai Zhao , Jia Huang , Junchao Cao , Yong Chen , Xiaobiao Zuo , Kai Yi , Chao Zhang","doi":"10.1016/j.compscitech.2024.110692","DOIUrl":null,"url":null,"abstract":"<div><p>Carbon fiber composites have poor impact resistance that constrains their wider application in advanced engineering structures, and hybridizing carbon fibers with Kevlar fibers is an effective method to enhance their impact resistance. The ballistic impact resistance can be optimized through regulating the hybridization layout and hybrid ratio, which requires systematically exploration on the inherent failure mechanism. In this work, the ballistic impact behavior of hybrid carbon/Kevlar fiber reinforced epoxy laminates against flat-head projectile are systematically investigated. Hybrid specimens with different thicknesses and hybridization ratios are designed, tested and compared. The results reveal the strong correlation between thickness and ballistic impact performance. When laminates are relatively thin, Kevlar fiber layers at the back surface impart superior impact resistance. In contrast, the opposite result is observed when the thickness is beyond a threshold value. With an increase in the Kevlar fiber hybridization ratio, this threshold value will occur in thinner laminates. Further analysis indicates that this phenomenon is related to a shear plugging effect that dominates the different modes of impact failure.</p></div>","PeriodicalId":283,"journal":{"name":"Composites Science and Technology","volume":null,"pages":null},"PeriodicalIF":8.3000,"publicationDate":"2024-05-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Thickness effect on ballistic impact behavior of hybrid carbon/Kevlar composites\",\"authors\":\"Sai Zhao , Jia Huang , Junchao Cao , Yong Chen , Xiaobiao Zuo , Kai Yi , Chao Zhang\",\"doi\":\"10.1016/j.compscitech.2024.110692\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><p>Carbon fiber composites have poor impact resistance that constrains their wider application in advanced engineering structures, and hybridizing carbon fibers with Kevlar fibers is an effective method to enhance their impact resistance. The ballistic impact resistance can be optimized through regulating the hybridization layout and hybrid ratio, which requires systematically exploration on the inherent failure mechanism. In this work, the ballistic impact behavior of hybrid carbon/Kevlar fiber reinforced epoxy laminates against flat-head projectile are systematically investigated. Hybrid specimens with different thicknesses and hybridization ratios are designed, tested and compared. The results reveal the strong correlation between thickness and ballistic impact performance. When laminates are relatively thin, Kevlar fiber layers at the back surface impart superior impact resistance. In contrast, the opposite result is observed when the thickness is beyond a threshold value. With an increase in the Kevlar fiber hybridization ratio, this threshold value will occur in thinner laminates. Further analysis indicates that this phenomenon is related to a shear plugging effect that dominates the different modes of impact failure.</p></div>\",\"PeriodicalId\":283,\"journal\":{\"name\":\"Composites Science and Technology\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":8.3000,\"publicationDate\":\"2024-05-29\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Composites Science and Technology\",\"FirstCategoryId\":\"88\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/S0266353824002628\",\"RegionNum\":1,\"RegionCategory\":\"材料科学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q1\",\"JCRName\":\"MATERIALS SCIENCE, COMPOSITES\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Composites Science and Technology","FirstCategoryId":"88","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0266353824002628","RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"MATERIALS SCIENCE, COMPOSITES","Score":null,"Total":0}
Thickness effect on ballistic impact behavior of hybrid carbon/Kevlar composites
Carbon fiber composites have poor impact resistance that constrains their wider application in advanced engineering structures, and hybridizing carbon fibers with Kevlar fibers is an effective method to enhance their impact resistance. The ballistic impact resistance can be optimized through regulating the hybridization layout and hybrid ratio, which requires systematically exploration on the inherent failure mechanism. In this work, the ballistic impact behavior of hybrid carbon/Kevlar fiber reinforced epoxy laminates against flat-head projectile are systematically investigated. Hybrid specimens with different thicknesses and hybridization ratios are designed, tested and compared. The results reveal the strong correlation between thickness and ballistic impact performance. When laminates are relatively thin, Kevlar fiber layers at the back surface impart superior impact resistance. In contrast, the opposite result is observed when the thickness is beyond a threshold value. With an increase in the Kevlar fiber hybridization ratio, this threshold value will occur in thinner laminates. Further analysis indicates that this phenomenon is related to a shear plugging effect that dominates the different modes of impact failure.
期刊介绍:
Composites Science and Technology publishes refereed original articles on the fundamental and applied science of engineering composites. The focus of this journal is on polymeric matrix composites with reinforcements/fillers ranging from nano- to macro-scale. CSTE encourages manuscripts reporting unique, innovative contributions to the physics, chemistry, materials science and applied mechanics aspects of advanced composites.
Besides traditional fiber reinforced composites, novel composites with significant potential for engineering applications are encouraged.