Bending behavior of needle-punched carbon/carbon composites: Efficient computation model

被引:0
作者
Han, Meng [1 ]
Zhang, Xingyu [1 ]
Wang, Zhichao [1 ]
Zhou, Chuwei [2 ]
Silberschmidt, Vadim V. [3 ]
Bi, Qinsheng [1 ]
机构
[1] Jiangsu Univ, Fac Civil Engn & Mech, Zhenjiang 212013, Peoples R China
[2] Nanjing Univ Aeronaut & Astronaut, State Key Lab Mech & Control Mech Struct, Nanjing, Peoples R China
[3] Loughborough Univ, Wolfson Sch Mech Elect & Mfg Engn, Loughborough, England
来源
ZAMM-ZEITSCHRIFT FUR ANGEWANDTE MATHEMATIK UND MECHANIK | 2025年 / 105卷 / 02期
基金
中国国家自然科学基金;
关键词
CARBON-FIBER COMPOSITES; MECHANICAL-PROPERTIES; CFRP COMPOSITES; COMPRESSION; FRACTURE; FATIGUE; FAILURE; CVI;
D O I
10.1002/zamm.202400734
中图分类号
O29 [应用数学];
学科分类号
070104 ;
摘要
Needle-punched carbon/carbon composites (NP C/Cs) are advanced materials widely used in aerospace applications. The needle-punching technique improves the structural integrality of carbon-fiber plies; however, it also introduces many defects affecting the mechanical behavior of NP C/Cs. To investigate the behavior of needle-punched carbon/carbon composites under bending loads, a circular-arc beam element with a needle-hole defect is developed to model the punched carbon fibers and an extended spring element is suggested to model the matrix. This model allows quick predictions of the bending modulus, strength and progressive damage of NP C/Cs. It is shown that efficient numerical predictions agree well with the experimental results, thus validating the proposed method.
引用
收藏
页数:16
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