Strategic Study of CAE >> 2003, Volume 5, Issue 9
Optimizing Z-directional Steely Needlepoint Based on Fiber Bending and Elongation
1. College of Economics Management, Southeast University, Nanjing 210096 China
2. Nanjing Fiberglass Reseach & Design Institute, Nanjing 210012 China
Next Previous
Abstract
This paper analyzes the mechanism of fiber bending and elongation of integrated piercing process, and builds the mechanical model of steely needle, then discusses the increasing and decreasing relation between maximum bending stress, maximum shear stress and the resistance that acts on needlepoint and radius and length of needlepoint, then optimizes the form of needlepoint according to the result.
Keywords
integrated piercing ; bending stress ; shear stress ; radius of needlepoint ; length of needlepoint ; optimization
References
[ 1 ] 朱建勋, 蒋 云, 陆晓华, 等.三维编织机锭子、轨道及锭槽结构尺寸的选择[J].宇航材料工艺, 1998, (3) :49~53 link1
[ 2 ] 杜善义, 沃丁柱, 章怡宁, 等.复合材料及其结构的力学、设计、应用和评价 (第3册) [M ].哈尔滨:哈尔滨工业大学出版社, 2000.230~254
[ 3 ] RolincikPG .Propertiesandapplicationofmod3piercedfabriccomposites[A ].17thNationalSymposiumofSAMPE[C].Calif, USA .1972, (4) :11~13
[ 4 ] 朱建勋, 细编穿刺织物的结构特点及性能[J].宇航材料工艺, 1998, (1) :41~43 link1
[ 5 ] 朱建勋, 何建敏, 王海燕.正交叠层机织布整体穿刺工艺的纤维弯曲伸长机理[J].中国工程科学, 2003, 5 (5) :59~62 link1
[ 6 ] 纺织材料学编写组.纺织材料学[M ].北京:纺织工业出版社, 1982.306~380
[ 7 ] 张志民.复合材料结构力学[M ].北京:北京航空航天大学出版社, 1996.89~91 link1