复合材料科学与工程 ›› 2023, Vol. 0 ›› Issue (1): 34-43.DOI: 10.19936/j.cnki.2096-8000.20230128.004

• 基础研究 • 上一篇    下一篇

插层补强复材构件中插层锯齿状边界处的厚度分析

张浩天, 王显峰*, 高天成, 叶帆   

  1. 南京航空航天大学,南京210016
  • 收稿日期:2022-01-10 出版日期:2023-01-28 发布日期:2023-02-24
  • 通讯作者: 王显峰(1980—),男,博士,副教授,主要从事缠绕、铺带、铺丝等复合材料自动化成型技术方面的研究,wangxf@nuaa.edu.cn。
  • 作者简介:张浩天(1996—),男,硕士研究生,主要从事先进复合材料自动化成型方面的研究。
  • 基金资助:
    承接国家重大科研项目(CJGJZD20200617102400001)

Thickness analysis at the jagged boundary of the inserted layer in the inserted-layer reinforced composite member

ZHANG Haotian, WANG Xianfeng*, GAO Tiancheng, YE Fan   

  1. Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China
  • Received:2022-01-10 Online:2023-01-28 Published:2023-02-24

摘要: 为了对含插层的铺层进行厚度计算,本文首先引入边界剩余量概念和表示方法,来对锯齿状边界三角形区域的大小进行定量评价;然后对插层轨迹中心线离散化,计算轨迹中心线端点沿切向至插层边界的距离,从而对不同情况下的边界剩余量进行计算,同时,利用边界剩余量对边界处产生的三角区进行划分并定量化计算,为单层铺层的厚度分布计算奠定基础;最后通过对芯模曲面的网格化和内、外侧三角区以及铺放缺陷区域在各层铺层的曲面赋型,获取三角面片顶点处厚度,求取三角面片三个顶点位置厚度的平均值作为三角面片整体厚度,从而对铺层整体进行厚度分析。

关键词: 先进复合材料, 自动铺丝, 轨迹规划, 插层, 边界剩余量

Abstract: In order to calculate the thickness of the layers containing the inserted layer, this paper first introduces the concept and representation of the boundary residual to quantitatively evaluate the size of the triangular region of the jagged boundary. Then, by discretizing the centerline of the inserted layer trajectory, the distance from the endpoint of the trajectory centerline along the tangential direction to the inserted layer boundary is calculated, so that the boundary residuals in different cases can be calculated. And at the same time, the triangular area generated at the boundary is divided and quantified by using the boundary residuals to lay the foundation for the calculation of the thickness distribution of the single-layer pavement. Finally, the thickness at the apex of the triangular surface sheet is obtained by meshing the surface of the core mold and the surface assignment of the inner and outer triangular areas and the laydown defect area in each layer of the pavement, and the average value of the thickness at the three apex locations of the triangular surface sheet is obtained as the overall thickness of the triangular surface sheet, so that the thickness analysis of the pavement as a whole can be performed.

Key words: advanced composites materials, automatic fiber laying, trajectory planning, inserted layer, boundary residual

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