三维机织复合材料弹性性能CAD  

CAD on elastic properties of 3D woven composites

作　　者：杨连贺[1] 

机构地区：[1]天津工业大学计算机技术与自动化学院,天津300160

出　　处：《天津工业大学学报》2005年第2期31-35,共5页Journal of Tiangong University

基　　金：天津市自然科学基金资助项目(033602611)

摘　　要：研究三维机织复合材料的弹性性能,提出纱态概念,将三维机织构件拓扑结构转换为数据库的二维表;基于纱态概念提出了新的纤维卷曲模型和交叉曲面板模型,借助三次样条曲线理论,建立了预报三维机织复合材料弹性性能的CAD模型,并以若干典型试验进行了验证.Elastic properties of 3D woven composites are researched and the concept of yarn contour is presented. The topology of 3D woven preform is converted into a 2D table in database. Based on the concept of yarn contour, a new crimp model of yarns and the across curve board model are expounded. With the help of cubic spline curves theory, the computer-aided design model is developed which forecasts the elastic modulus of 3D woven composites. In addition, the contrastive tests are done to verify the model.

关 键 词：三维机织复合材料 弹性性能 纱态 交叉曲面板模型 三次样备曲线 计算机辅助设计(CAD) 

分 类 号：TS106.69[轻工技术与工程—纺织工程] TP391.72[轻工技术与工程—纺织科学与工程]