中北大学学报（自然科学版）2025，Vol.46Issue(1)：27-34,8.DOI:10.62756/jnuc.issn.1673-3193.2024.04.0005
平头弹冲击下复合材料层合板抗侵彻特性研究
Research on the Anti-Penetration Characteristics of Composite Laminates Under Impact of Flat-Nosed Projectile
摘要
Abstract
In order to investigate the mechanical response and damage failure mechanism of carbon fiber reinforced polymer(CFRP)under high-speed impact loading,the penetration resistance characteristics and response mechanism of carbon fiber composite laminates was studied.Based on the Hashin damage criterion,and using Cohesive interface elements,a numerical simulation model of carbon fiber composite laminates considering delamination damage under flat-nosed projectile penetration was established.The numerical simulation was used to study the energy absorption characteristics and damage failure modes of composite laminates under high-speed impact penetration.According to the classical ballistic limit theory,the ballistic limit of the CFRP laminates was determined,and the damage evolution process of the CFRP laminates under high-speed impact loading was studied,meanwhile the damage mechanism of the laminate was analyzed.The results show that the energy absorption characteristics of the CFRP laminate exhibit a bilinear relationship.With the increase of impact energy,the energy absorption of the laminate first rapidly increases and then gradually leveles off.Under the impact of high-speed penetration,the CFRP laminates first experiences fiber tension fracture at the impact point,followed by the spreading of damage rupture areas along stress weak paths,leading to matrix compression and the formation of bulges on the back of the laminate,subsequently evolving into delamination damage,and finally resulting in fracture modes such as fiber bundle splitting.The degree of damage in the lower layer region of the laminate gradually increases under high-speed impact loading.The differential laying angles of the fiber layers causes the change in the interlayer stress conditions of the laminate,and leades to various damage areas among the layers.关键词
碳纤维复合材料层合板/抗侵彻/弹道极限/能量吸收/冲击载荷Key words
carbon fiber composite laminate/penetration resistance/ballistic limit/energy absorption/impact loading分类
通用工业技术引用本文复制引用
郭安肖,高经武,蔡宣明,于弘兴,马沛冉..平头弹冲击下复合材料层合板抗侵彻特性研究[J].中北大学学报（自然科学版）,2025,46(1):27-34,8.基金项目
省部共建动态测试技术国家重点实验室基金资助项目(2022-SYSJJ-03) （2022-SYSJJ-03）
