In this paper is introduced the basic principle of surface braiding Angle of three dimensional composite material preform.
本文介绍了三维编织复合材料预制件表面编织角的检测与不匀分析的基本原理。
Meanwhile, the failure modes were also discussed, and the results show that, braiding fabric and the braiding Angle are the main factors that affect the failure mode.
同时，对试样的破坏模式也进行了讨论，发现编织结构和编织角是影响材料破坏模式的重要因素。
A system consisting of CCD sensor and computer may be used to test surface braiding Angle of three dimensional composite material preform, and analyse its unevenness.
该系统以CCD为传感器，与微型计算机连接，进行三维编织复合材料预制件表面编织角的检测，并对其进行不匀分析。
The experiment results show that composites with large braiding Angle have complex crack forms under uniaxial tensile loading and the tensile stress-strain curves take on nonlinear characters.
实验数据表明：大编织角复合材料在单向拉伸作用下的破坏形式较为复杂，其应力-应变曲线呈现非线性特性。
The experiment results show that composites with large braiding Angle have complex crack forms under uniaxial tensile loading and the tensile stress-strain curves take on nonlinear characters.
实验数据表明：大编织角复合材料在单向拉伸作用下的破坏形式较为复杂，其应力-应变曲线呈现非线性特性。
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