复合材料科学与工程Issue(12)：5-11,7.DOI:10.19936/j.cnki.2096-8000.20241228.001
碳纤维复合材料蜂窝结构制备及轴向压溃力学行为研究
Preparation of carbon fiber composite honeycomb structures and mechanical behavior of axial crush
摘要
Abstract
Carbon fiber reinforced composites(CFRP)have excellent mechanical properties,especially cushio-ning energy absorption properties.The structure type of the composite material products has a great influence on the mechanical properties,and a reasonable structural shape can better utilize the energy absorption and specific energy absorption potential of the composite material.The hexagonal column honeycomb structure of honey bees has been naturally selected to have good load-bearing stability.Bionic honeycomb structure,the periodic hexagonal cylinder honeycomb structure was prepared by assembling and bonding the single plates together,in which the single plate was obtained by vacuum hot-pressing method using T700 prepreg through a combination mold.The quasi-static im-pact experiments of the single plate were carried out by universal electronic material testing machine,and the pro-gressive failure and delamination damage mechanisms were analyzed.To better simulate the impact failure behavior of the composite honeycomb structure,a damage mechanism that simultaneously considers both the intralaminar and interlaminar damage mechanisms of the CFRP laminate was proposed based on the continuum medium damage me-chanics,and the incremental constitutive model in finite element form was developed,whose prediction results match well with the experimental results and verifies the feasibility of the finite element method.On this basis,simu-lations of the honeycomb structure were carried out to discuss the impact response of the honeycomb structure and analyze the failure modes and energy absorption effects under impact loading.The results of this paper demonstrate the stability and energy absorption characteristics of the honeycomb structure,which provides a reference for the de-sign and application of CFRP structures in cushioning energy absorption engineering.关键词
复合材料/蜂窝结构/破坏机制/渐进失效/缓冲吸能Key words
composite/honeycomb structure/damage mechanism/progressive failure/cushioning energy ab-sorption分类
通用工业技术引用本文复制引用
朱宏伟,刘轲,赵昌方..碳纤维复合材料蜂窝结构制备及轴向压溃力学行为研究[J].复合材料科学与工程,2024,(12):5-11,7.基金项目
中国博士后科学基金(2024M751640) （2024M751640）
国家资助博士后研究人员计划(GZC20231315) （GZC20231315）
