蜂窝状三维整体机织复合材料的弯曲性能及其有限元模拟

doi:10.13475/j.fzxb.20170400606

纺织学报 ›› 2017, Vol. 38 ›› Issue (11): 56-60.doi: 10.13475/j.fzxb.20170400606

蜂窝状三维整体机织复合材料的弯曲性能及其有限元模拟

收稿日期:2017-04-05 修回日期:2017-08-23 出版日期:2017-11-15 发布日期:2017-11-15

Bending properties and finite element method simulation of honeycomb 3-D integrated woven composites

Received:2017-04-05 Revised:2017-08-23 Online:2017-11-15 Published:2017-11-15

摘要/Abstract

摘要：

为解决蜂窝状复合材料在黏合压制过程中整体性差的问题，经合理设计在普通织机上织造截面为三角形的蜂窝状三维机织物，并采用真空辅助树脂传递模塑成型工艺将蜂窝状三维机织物制备成复合材料。通过实验和Abaqus有限元模拟的方法，对比分析材料在不同加载速度下的载荷位移曲线、最大载荷速度曲线、最大吸能及破坏模式。结果表明，实验方法和有限元模拟得到的结果具有很好的统一性。使用模型可预测截面为三角形蜂窝状三维机织复合材料的力学性能，为高冲击损伤容限的蜂窝状三维机织复合材料优化设计提供理论参考。

关键词: 蜂窝状, 三维机织结构, 弯曲性能, 真空辅助树脂传递模塑成型工艺, 有限元模拟

Abstract:

In order to solve the poor integrity of common boneycomb composites made by bonding planar materials with pressing, but the integrity of composites was bad. In order to solve this problem, honeycomb three-dimensional integrated woven fabric with triangle section shape were fabricated on common loom by reasonable design. The honeycomb three-dimensional integrated woven composites were prepared by VARTM molding process (vacuum assisted resin transfer molding process). Then, after the comparison of load-displacement curves, maximum load-velocity curves, maximum energy absorption and failure modes of experiments and Abaqus FEM simulation at different speeds, it showed that they had better consistency. It also proved that the Abaqus mode was right, we could use this mode to predict the mechanical properties of honeycomb 3D woven composites with triangle section shape and this provided theory for the honeycomb 3D woven composites in the high impact damage tolerance.

Key words: honeycimb, three-dimensional woven structure, bending property, vacuum assisted resin transfer molding process, finite element method

吕丽华黄耀丽崔婧蕊. 蜂窝状三维整体机织复合材料的弯曲性能及其有限元模拟[J]. 纺织学报, 2017, 38(11): 56-60.

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蜂窝状三维整体机织复合材料的弯曲性能及其有限元模拟

Bending properties and finite element method simulation of honeycomb 3-D integrated woven composites

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