Three-dimensional braided materials based on space group p4 symmetry

Abstract

The invention discloses a three-dimensional braided material based on space group P4 symmetry. According to the braided material, a novel three-dimensional braided geometric structure meeting the space group P4 symmetry and derived by taking representative volume elements meeting point group 4 symmetry as basic structural units is adopted to analyze the motion law of a yarn carrier in a braiding process, and the novel three-dimensional braided material variety having higher fiber volume percentage than the traditional three-dimensional braided material is obtained through research on the technology feasibility and prediction of the fiber volume percentage of the corresponding three-dimensional braided fabric. Meanwhile, the braiding technological method is simple and convenient to implement, the geometric structure of the obtained three-dimensional braided material is more stable, and the mechanical properties are excellent.

Description

Technical field [0001] The invention relates to the technical field of three-dimensional braided materials, in particular to a space group-based Symmetrical three-dimensional woven material. Background technique [0002] Because of its high specific strength, specific modulus, high damage tolerance, fracture toughness, impact resistance, no delamination, crack resistance and fatigue resistance, three-dimensional braided composite materials have been used in high-temperature structures such as aviation and aerospace. It has been widely used and continuously expanded to the medical, sports, automotive and other industries. However, due to the constraints of processing technology and other factors at this stage, there are too few varieties of three-dimensional braided composite materials, low processing efficiency and high process cost, which are not conducive to optimizing the performance of composite materials. To obtain three-dimensional braided composite materials with better ...

AI Technical Summary

Problems solved by technology

However, due to the constraints of processing technology and other factors at this stage, the variety of three-dimensional braided composite materials is too small, the processing efficiency is low, and the process cost is high, which is not conducive to optimizing the performance of composite materials.

In order to obtain 3D braided composite materials with better comprehensive performance, it is urgent to develop more 3D weaving processes, and the research work on the prediction of new 3D weaving methods is still in its infancy

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