DEVELOPMENT　OF　BRAIDED－PULTRUSION　PROCESS　AND　STRUCTURE－PROPERTY　RELATIONSHIPS　FOR　TUBULAR　COMPOSITES  

作　　者：J.H. Byun S.-K.Lee and B.S. Kim (Korea Institute of Machinery and Materials, P.O. Box 41, Changwon, Korea 

出　　处：《Acta Metallurgica Sinica(English Letters)》1996年第6期555-564,共10页金属学报（英文版）

摘　　要：In order to realize the potential of composite materials, it is imperative to develop a manufacturing process, to understand the microstructures, and to assess the structural performance of the composite. The braided-pultrusion process, which combines the pultrusion process with the braiding technology, has been developed by utilizing a novel resin impregnation device. The goal of the development is to achieve both costeffectiveness and performance of the composite. The tubular composites of diameter 5.3 mm have been produced using Kevlar 49 fiber and polyester resin. In order to assess the mechanical performance of the composites, an analytical method for predicting the elastic constants has been developed. The analysis includes the geometric model of a unit cell, coordinate transformation, and averaging of stiffness and compliance constants of the constituent materials. The analytic predictions compared favorably with experimental results.In order to realize the potential of composite materials, it is imperative to develop a manufacturing process, to understand the microstructures, and to assess the structural performance of the composite. The braided-pultrusion process, which combines the pultrusion process with the braiding technology, has been developed by utilizing a novel resin impregnation device. The goal of the development is to achieve both costeffectiveness and performance of the composite. The tubular composites of diameter 5.3 mm have been produced using Kevlar 49 fiber and polyester resin. In order to assess the mechanical performance of the composites, an analytical method for predicting the elastic constants has been developed. The analysis includes the geometric model of a unit cell, coordinate transformation, and averaging of stiffness and compliance constants of the constituent materials. The analytic predictions compared favorably with experimental results.

关 键 词：braided pultrusion IMPREGNATION structural performance 

分 类 号：TG356.5[金属学及工艺—金属压力加工]