The code has been wrote by using the latest assembled developing tools - - visual c + + . net , under the environment of the microsoft windows 2000 . the mathematical model is defined for the process design on the basis of the microstructure of 3d braided composites 首先在分析三维编织复合材料内部细观组织特性，即材料单胞内纤维束与基体在空间上的几何分布规律的基础上，建立了三维编织物的数学模型，为工艺设计提供理论基础。
Abstract : the behavior of concrete beams reinforced with carbon / aramid fiber hybrid woven fabrics was experimentally investigated and theoretically analysed . the study was mainly focused on strength analysis of carbon / aramid fiber hybrid woven fabrics and the feasibility of hybrid fiber woven fabrics reinfowced concrete structures 文摘:对碳芳纶纤维混杂编织物增强混凝土梁的性能进行了试验和理论分析，主要是集中在纤维混杂编织物混凝土的强度分析以及找出混杂纤维织物增强混凝土结构应用的可行性
This paper a new process model for resin transfer molding ( rtm ) is proposed simulating the wetting out process which is the most critical stage in rtm by common windows . work is focused on such aspects as follows : firstly , we get the permeability in the flow direction through analyzing the tests data on special reinforcements 本课题主要研究数值模拟rtm工艺中的树脂充模流动过程，并实现了树脂充模流动过程在普通windows窗口下模拟显示。在研究过程中做了以下工作：首先针对特定的三维编织物进行树脂浸润过程的数据采样，通过对采样数据的分析获得该三维编织物的渗透率。
The research in this dissertation began with braiding process of three - dimensional textile perform . a new fabric architecture model ( fam ) was set up . the geometric structure of braided composites was recognized and the mechanical properties of the composites were analyzed 文中从三维编织物的编织工艺入手，得到编织复合材料的几何结构，建立了织物纱线构造模型( fam - fabricarchitecturemodel ) ，进而分析其力学性能；另外，通过试验研究了这种复合材料的力学性能。
According to three dimension braided composites for braided technology - four - step and technology - two - step procedure , and with reference to theories of braided fabric geometry and force models , a geometric model is built . in this model , the cross - section of thread is described as a circle and thread path as a cubic b - spline . braided - fabric structures in three dimensions are displayed by using solid - modeling techniques 本文三维编织物根据四步法和二步法编织工艺，从纱线的力学模型出发，建立了以圆形近似描述纱线的截面形态，以三次b样条曲线近似描述纱线的屈曲形态的织物空间几何模型，利用计算机三维实体造型技术，分别建立各自的编织物实体模型，用来模拟织物内部各纱线的空间位置，完成织物结构仿真。
