[1]石小红,陈海立,周光明,等.基于渐进损伤模型的双搭接对接接头弯曲性能[J].南京理工大学学报(自然科学版),2014,38(04):464-469.
 Shi Xiaohong,Chen Haili,Zhou Guangming,et al.Bending of bilateral butt joints using progressive damage model[J].Journal of Nanjing University of Science and Technology,2014,38(04):464-469.
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基于渐进损伤模型的双搭接对接接头弯曲性能
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《南京理工大学学报》(自然科学版)[ISSN:1005-9830/CN:32-1397/N]

卷:
38卷
期数:
2014年04期
页码:
464-469
栏目:
出版日期:
2014-08-31

文章信息/Info

Title:
Bending of bilateral butt joints using progressive damage model
作者:
石小红1陈海立2周光明2王新峰2冯维超2
1.总参谋部第六十研究所 技术工艺中心,江苏 南京 210016; 2.南京航空航天大学 机械结构力学及控制国家重点实验室,江苏 南京 210016
Author(s):
Shi Xiaohong1Chen Haili2Zhou Guangming2Wang Xinfeng2Feng Weichao2
1.The Sixtieth Institute of the Headquarters of the General,Nanjing 210016,China; 2.State Key Laboratory of Mechanics and Control of Mechanical Structures,Nanjing University of Aeronautics and Astronautics,Nanjing 210016,China
关键词:
复合材料连接 弯曲强度 渐进损伤 搭接参数
Keywords:
composite joints bending strength progressive damage overlap parameters
分类号:
TB332
摘要:
为研究复合材料双搭接连接的搭接长度和搭接厚度对于对接接头弯曲强度的影响,使用ABAQUS进行了渐进损伤分析。该分析理论基于三维渐进损伤分析方法和粘聚区模型,并通过用户子程序编写的复合材料本构和Cohesive Contact来模拟复材损伤和胶接界面损伤。通过渐进损伤分析,得到不同搭接参数下接头的损伤过程和弯曲强度。结果表明:随着搭接长度的增加,接头强度先增大后趋于稳定,而随着搭接厚度的增加,接头强度先增大后减小。该文研究成果可为复合材料连接的承弯设计提供参考。
Abstract:
In order to study the influence of overlap length and thickness on the bending of bilateral butt joint,the software Abaqus is used for the progressive damage analysis.The method is built based on the three-dimensional progressive damage analysis(PDA)and the cohesive zone model(CZM).The constitutive equations for composite programmed by User-defined Material Mechanical Behavior(UMAT)subroutine and Cohesive Contact method are used to simulate respectively the damage progression in composites and that in the adhesive interface.The bending strength and damage process of joints are obtained.The results show,the strength of joints can be increased with the increase of the overlap length and may change little when the length reaches a definite value.But its strength increases at the beginning and decreases with increasing the overlap thickness.The results can provide reference material for the design of joints during bending.

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备注/Memo

备注/Memo:
收稿日期:2014-02-23 修回日期:2014-06-07
作者简介:石小红(1966-),男,高级工程师,主要研究方向:复合材料技术,E-mail:sxhong445@163.com; 通讯作者:周光明(1966-),男,博士,教授,主要研究方向:复合材料设计以及结构强度,E-mail:zhougm@nuaa.edu.cn。
引文格式:石小红,陈海立,周光明,等.基于渐进损伤模型的双搭接对接接头弯曲性能[J].南京理工大学学报,2014,38(4):464-469.
投稿网址:http://zrxuebao.njust.edu.cn
更新日期/Last Update: 2014-08-31