基于均匀网格的复合材料层合板分层损伤建模

中国民航大学学报 ›› 2023, Vol. 41 ›› Issue (6): 50-58.

基于均匀网格的复合材料层合板分层损伤建模

钱若力，李梁轶，李顶河，蔡舒妤

（中国民航大学航空工程学院，天津 300300）

收稿日期:2021-10-20 修回日期:2022-01-12 出版日期:2024-01-12 发布日期:2024-01-12
作者简介:钱若力（1962—），男，天津人，副教授，硕士，研究方向为复合材料结构力学.
基金资助:
天津市自然科学基金项目（17JCQNJC02600）；国家自然科学基金项目（11502286）；中央高校基本科研业务费专项（3122017021，3122017034）

Delamination damage modeling of composite laminate based on uniform grid

QIAN Ruoli, LI Liangyi, LI Dinghe, CAI Shuyu

(College of Aeronautical Engineering, CAUC, Tianjin 300300, China)

Received:2021-10-20 Revised:2022-01-12 Online:2024-01-12 Published:2024-01-12

摘要/Abstract

摘要： 基于扩展逐层法（XLWM，extendedlayerwisemethod）、多维最大熵原理和分层前缘跟踪算法，建立了一种用于分析复合材料层合板分层损伤的均匀网格快速建模和分析方法（FUGD，fastuniform-griddelamina鄄tion）。利用该方法可通过C扫描（或X射线）图像和二维均匀有限元网格快速建立分层损伤分析模型。首先，基于多维最大熵原理和扫描图像上的像素点灰度值重建分层区域，处于分层区域的有限元节点被标记为分层节点；然后，通过分层前缘跟踪算法和已标记为分层的节点精确地跟踪分层前缘；最后，以含方形、圆形、双圆形分层区域的方形层合板为例，验证该方法的有效性。

关键词: 复合层, 层合板, 分层损伤, 扩展逐层理论, 最大熵原理, 虚拟裂纹闭合技术

Key words: composite layer, laminate , delamination damage , extended layerwise method (XLWM), maximum entropy principle, virtual crack closure technique (VCCT)

中图分类号:

TB332

钱若力, 李梁轶, 李顶河, 蔡舒妤. 基于均匀网格的复合材料层合板分层损伤建模[J]. 中国民航大学学报, 2023, 41(6): 50-58.

QIAN Ruoli, LI Liangyi, LI Dinghe, CAI Shuyu. Delamination damage modeling of composite laminate based on uniform grid[J]. Journal of Civil Aviation University of China, 2023, 41(6): 50-58.

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