首页 | 本学科首页   官方微博 | 高级检索  
     

缝纫层合板的本构关系研究(I)——缝纫单层板有效弹性常数分析
引用本文:桂良进,范子杰,陈宗渝,郦正能.缝纫层合板的本构关系研究(I)——缝纫单层板有效弹性常数分析[J].复合材料学报,2002,19(1):95-100.
作者姓名:桂良进  范子杰  陈宗渝  郦正能
作者单位:1. 清华大学,汽车工程系,汽车安全与节能国家重点实验室,北京,100084
2. 北京航空航天大学,飞行器设计与应用力学系,北京,100083
摘    要:建立了缝纫单层板的有效弹性常数分析模型。通过考虑缝纫引起的铺层纤维的面内弯曲和非均匀分布,分析了缝纫参数(如缝纫行距、针距和缝线半径)对等效弹性常数的影响。结果表明,当缝纫方向垂直于铺层纤维方向时,随缝纫行距的减小或缝线半径的增大,纵向模量逐渐下降,而横向模量和剪切模量则逐渐提高;缝纫针距对纵向模量影响很小。

关 键 词:缝纫单层板  有效弹性常数  缝纫参数
文章编号:1000-3851(2002)01-0095-06
收稿时间:2001-01-15
修稿时间:2001-03-12

STUDY ON CONSTITUTIVE RELATIONSHIP OF STITCHED LAMINATES --Analysis of Effective Elastic Constants of Stitched Lamina
GUI Liang-jin,FAN Zi-jie,CHEN Zong-yu,LI Zheng-neng.STUDY ON CONSTITUTIVE RELATIONSHIP OF STITCHED LAMINATES --Analysis of Effective Elastic Constants of Stitched Lamina[J].Acta Materiae Compositae Sinica,2002,19(1):95-100.
Authors:GUI Liang-jin  FAN Zi-jie  CHEN Zong-yu  LI Zheng-neng
Affiliation:1. State Key Laboratory of Automotive Safety and Energy, Department of Automotive Engineering, Tsinghua University, Beijing 100084, China; 2. Department of Flight Vehicle Design and Applied Mechanics, Beijing University of Aeronautics and Astronautics,Beijing 100083, China
Abstract:A model fordetermining theeffective elastic constantsof stitched lamina is established,in which the effectsof stitching parameterson elastic constantsofstitched lamina areanalyzed by consid- ering the nonuniform distribution and in- plan waviness of fibers induced by stitching.The results show that,when the stitching direction isperpendicularto the fiber direction,the longitudinalmodu- lus decreases but transverse modulus and shear modulus increase gradually with decreasing row spac- ing or increasing stitch thread radius.
Keywords:stitched lamina  effective elastic constants  stitching parameters
本文献已被 CNKI 维普 万方数据 等数据库收录!
点击此处可从《复合材料学报》浏览原始摘要信息
点击此处可从《复合材料学报》下载全文
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号