• CN:11-2187/TH
  • ISSN:0577-6686

机械工程学报 ›› 2024, Vol. 60 ›› Issue (18): 116-127.doi: 10.3901/JME.2024.18.116

• 材料科学与工程 • 上一篇    下一篇

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整体加筋结构疲劳损伤研究进展

高冲1,2, 董丽虹2, 王海斗3, 刘彬4, 吕晓仁1   

  1. 1. 沈阳工业大学机械工程学院 沈阳 110870;
    2. 陆军装甲兵学院装备再制造技术国防科技重点实验室 北京 100072;
    3. 陆军装甲兵学院机械产品再制造国家工程研究中心 北京 100072;
    4. 江苏科技大学材料科学与工程学院 镇江 212003
  • 收稿日期:2023-12-05 修回日期:2024-05-08 出版日期:2024-09-20 发布日期:2024-11-15
  • 作者简介:高冲,女,1989年出生,博士研究生。主要研究方向为机械制造、疲劳分析、表面工程。E-mail:ritagaochong@sina.com
    董丽虹(通信作者),女,1972年出生,副研究员,主要研究方向为材料无损检测与再制造后的寿命预测。E-mail:lihong.dong@126.com
  • 基金资助:
    国家重大(ZD-302-12)和国家自然科学基金(52175206,52130509)资助项目。

Research Progress on Fatigue Damage of Integrally Stiffened Structure

GAO Chong1,2, DONG Lihong2, WANG Haidou3, LIU Bin4, Lü Xiaoren1   

  1. 1. School of Mechanical Engineering, Shenyang University of Technology, Shenyang 110870;
    2. National Key Lab for Remanufacturing, Army Academy of Armored Forces, Beijing 100072;
    3. National Engineering Research Center for Remanufacturing, Army Academy of Armored Forces, Beijing 100072;
    4. School of Materials Science and Engineering, Jiangsu University of Science and Technology, Zhenjiang 212003
  • Received:2023-12-05 Revised:2024-05-08 Online:2024-09-20 Published:2024-11-15

摘要: 大型金属回转体加筋构件作为关键承力结构广泛应用于航空、航天、导弹及潜艇等高端运载装备中。整体加筋结构是大型金属回转体加筋构件的典型结构之一,具有较高的比强度和比刚度,符合新一代航空航天飞行器、战略导弹和船舶等装备向大型化、轻量化、高可靠性的需求。疲劳失效是整体加筋结构的主要失效方式之一,结构的各向异性造成结构内应力分布不均匀,因此疲劳裂纹在整体加筋结构中扩展路径复杂多变。从裂纹在整体加筋结构中沿筋、穿筋两种典型扩展形式出发,总结了加强筋对结构的止裂机理及其影响因素。从断裂力学角度,对应力强度因子KJ积分、裂纹张开位移等定量描述结构断裂性能参量的研究方法及研究进展进行概述。从损伤力学理论及数值模型角度,对内聚力模型、GTN及其修正模型在整体加筋结构韧性损伤行为的研究情况进行梳理和分析,进一步指出当前所存在的问题及将来的发展趋势。

关键词: 整体加筋结构, 疲劳裂纹扩展, 断裂力学, 损伤模型, 止裂性能

Abstract: Large sized metal rotator components are widely used as the bearing part in high-end industrial equipment such as aerospace industry, missiles and submarines. Integrally stiffened structure is one of the typical structures of large sized metal rotary components, which has high specific strength and stiffness. It meets the requirements of new generation of aerospace vehicles, strategic missiles and ships and other equipment to be large-scale, lightweight, high reliability. Fatigue failure is one of the main failure mode of integral stiffened plate structure. The anisotropy of the integrally stiffened structure lead to uneven stress distribution, causing the propagation path of fatigue crack in the integrally stiffened structure is complex and changeable. Based on crack turning and across reinforcement, the two typical crack propagations, the crack arrest mechanism of the stiffener on the structure and its influencing factors are summarized. From the perspective of fracture mechanics, the research methods and research progress of stress intensity factor K, J integral and crack opening displacement parameters are summarized. From the perspective of damage mechanics theory and numerical model, the research situation of cohesive zone model, GTN and its modified model in the ductile damage of integrally stiffened structure is sorted out and analyzed, and the existing research problems and future development trend are further pointed out.

Key words: integrally stiffened structure, fatigue crack growth, fracture mechanics, damage model, crack arrest performance

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