含槽口复合材料Ω型加筋壁板渐进损伤分析

复合材料科学与工程 ›› 2020, Vol. 0 ›› Issue (4): 13-18.

含槽口复合材料Ω型加筋壁板渐进损伤分析

余芬, 安伯宁, 刘武帅, 郭拓

中国民航大学航空工程学院,天津300300

收稿日期:2019-08-05 出版日期:2020-04-28 发布日期:2020-04-28
通讯作者: 何振鹏(1985-),男,博士,主要从事机械结构强度及复合材料失效方面的研究,hezhenpeng@tju.edu.cn。
作者简介:余芬(1963-),女,教授,主要从事航空复合材料制造与修理方面的研究。本文作者还有邓殿凯,何振鹏^*。
基金资助:
国家自然科学基金项目(U1633123,U1433202);天津市自然科学基金项目(18JCQNJC05400);中国民航局科技计划资助项目(MHRD20160106);中央高校基金(3122018D014);天津市教委自然科学项目(2018KJ240)

PROGRESSIVE DAMAGE ANALYSIS OF OMEGA STIFFENEDCOMPOSITE PANELS WITH DIFFERENT ORIENTED NOTCH

YU Fen, AN Bo-ning, LIU Wu-shuai, GUO Tuo

Aeronautical Engineering Institute, Civil Aviation University of China, Tianjin 300300, China

Received:2019-08-05 Online:2020-04-28 Published:2020-04-28

摘要/Abstract

摘要： 对含不同角度槽口的复合材料Ω型加筋壁板受轴向压缩载荷作用下承载强度和失效模式的研究具有重要意义。通过编写VUMAT子程序将选择的三维Hashin失效准则及刚度退化模式加入渐进损伤模型分析中。首先研究0°槽口模型的位移-载荷曲线、面外位移及失效模式,并将结果与实验及已有文献进行对照,验证建立模型的正确性,进一步研究不同角度槽口对加筋壁板的影响。结果表明:具有90°槽口的加筋壁板模型在轴向压缩下的承载能力最强,45°槽口模型承载能力次之,0°槽口模型承载能力最弱。0°槽口模型纤维压缩失效出现在模型的下侧,45°和90°槽口模型均出现在槽口两侧,且三种模型失效均沿与载荷垂直方向扩展。

关键词: 复合材料, Ω型加筋壁板, VUMAT, 三维Hashin失效准则, 渐进损伤模型

Abstract: It is of great significance to study the load-bearing strength and failure modes of omega stiffened composite panels with different oriented notches under axial compressive loads. By compiling VUMAT subroutine, the selected three-dimensional Hashin failure criterion and stiffness degradation mode were added to the progressive damage model analysis. Firstly, the displacement-load curve, out-of-plane displacement and failure mode of the 0° notch model were studied, and the results were compared with the experimental results and the literature to verify the correctness of the model, and the effect of different oriented notches on stiffened panels was further studied. The results show that the stiffened panel model with 90° notch has the strongest bearing capacity under axial compression, followed by 45° notch model and 0° notch model. The fiber compression failure of 0° notch model appears at the lower side of the model, 45° and 90° notch model appears at both sides of the notch, and the failure of the three models extends vertically with the load.

Key words: composite materials, omega stiffened composite panels, VUMAT, three-dimensional Hashin failure criterion, progressive damage model

中图分类号:

TB332

余芬, 安伯宁, 刘武帅, 郭拓. 含槽口复合材料Ω型加筋壁板渐进损伤分析[J]. 复合材料科学与工程, 2020, 0(4): 13-18.

YU Fen, AN Bo-ning, LIU Wu-shuai, GUO Tuo. PROGRESSIVE DAMAGE ANALYSIS OF OMEGA STIFFENEDCOMPOSITE PANELS WITH DIFFERENT ORIENTED NOTCH[J]. Composites Science and Engineering, 2020, 0(4): 13-18.

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