论文:2012,Vol:30,Issue(2):160-164
引用本文:
殷之平, 郭今, 黄其青. 基于材料各向异性的整体梁裂纹转折分析[J]. 西北工业大学
Yin Zhiping, Guo Jin, Huang Qiqing. Analyzing Crack Turn of Wing-Beam Integrated Structure Based on Anisotropic Mechanical Properties of Aluminum Alloy[J]. Northwestern polytechnical university

基于材料各向异性的整体梁裂纹转折分析
殷之平, 郭今, 黄其青
西北工业大学 航空学院,陕西 西安 710072
摘要:
考虑铝合金材料 S-T-L 方向材料性能的差异, 运用 Abaqus/Explicit 及其子程序 VUMAT 进行整体翼梁稳定裂纹扩展路径的准静态模拟, 研究了整体翼梁结构在进行剩余强度试验时准静态裂纹扩展特性, 并与试验结果进行对比。分析结果显示, 考虑材料各向异性损伤失效的材料模型可以很好的描述准静态裂纹扩展, 并且可以较好的模拟整体梁裂纹在腹板45°转折和筋条附近90°转折。
关键词:    整体翼梁结构    准静态裂纹扩展路径    材料各向异性    损伤   
Analyzing Crack Turn of Wing-Beam Integrated Structure Based on Anisotropic Mechanical Properties of Aluminum Alloy
Yin Zhiping, Guo Jin, Huang Qiqing
College of Aeronautics,Northwestern Polytechnical University,Xi'an 710072,China
Abstract:
Sections 1 through 3 of the full paper explain the analysis mentioned in the title. Their core consists of:(1) taking into consideration the differences among mechanical properties of aluminum alloy in the directions of S-T-L, we perform the quasi-static simulation of the crack propagation path of the wing-beam integrated structure withAbaqus/Explicit and its VUMAT subroutine interface; (2) we analyze the quasi-static crack propagation character-istics of the wing-beam integrated structure under residual strength test and then compare the simulation results asshown in Figs. 5, 6 and 7 with the results of experiments performed by us, given in Fig. 2. The comparison resultsshow preliminarily that, in designing a wing-beam integrated structure and analyzing a crack turn with the anisotrop-ic yielding standard, the anisotropic mechanical properties must be considered because it is these properties thatcause the 90�turn near the rib of the wing-beam integrated structure under residual strength test.
Key words:    aircraft    aluminum alloys    analysis    anisotropy    calculations    computational geometry    computer soft-ware    crack propagation    deformation    experiments    failure analysis    finite element method    mechan-ical properties    models    numerical methods    residual stresses    schematic diagrams    simulation    standards    stresses    wings;wing-beam integrated structure    quasi-static crack propagation   
收稿日期: 2011-05-12     修回日期:
DOI:
通讯作者:     Email:
作者简介: 殷之平(1977-),西北工业大学讲师,主要从事飞机结构疲劳与损伤容限技术研究。
相关功能
PDF(788KB) Free
打印本文
把本文推荐给朋友
作者相关文章
殷之平  在本刊中的所有文章
郭今  在本刊中的所有文章
黄其青  在本刊中的所有文章

参考文献:
[1] 王生楠, 张妮娜, 秦剑波. 整体机身结构纵向裂纹转折与止裂特性分析. 西北工业大学学报, 2007, 25(4):472-477Wang Shengnan, Zhang Nina, Qin Jianbo. Exploring Engineering Significance of Turning of Longitudinal Crack in Integral Air-frame Structure. Journal of Northwestern Polytechnical University, 2007, 25(4):472-477 (in Chinese)
[2] 黄其青, 刘进征, 殷之平. 整体翼梁结构断裂特性分析方法与研究. 航空计算技术, 2006, 3:114-116Huang Qiqing, Liu Jinzheng, Yin Zhiping. Fracture Characteristics Analysis Method and Study of Wing-Beam Integrated Struc-ture. Aeronautical Computing Technique, 2006, 36(2): 114-119 (in Chinese)
[3] 翟新康. 飞机整体翼梁结构损伤容限试验及分析研究:[硕士学位论文]. 西安:西北工业大学, 2007Zhai Xinkang. Damage Tolerance Test and Analysis on Wing-Beam Integrated Structure. Master Degree Dissertation. Xi'an:Northwestern Polytechnical University, 2007 (in Chinese)
[4] 秦剑波. 整体加筋结构裂纹转折理论及其应用研究:[硕士学位论文]. 西安:西北工业大学, 2006Qin Jianbo. Studies on the Crack Turning Theories for Integrally Stiffened Structures and Its Application. Master Degree Disser-tation. Xi'an: Northwestern Polytechnical University, 2006 (in Chinese)
[5] Fang Wang, Wei Chengcui, Jeom KeePaik. Residual Ultimate Strength of Structural Members with Multiple Crack Damage.Thin-Walled Structures, 2009, 47:1439-1446
[6] 吴学仁. 飞机结构金属材料力学性能手册(第一卷). 北京:航空工业出版社, 1996Wu Xueren. Handbook of Mechanical Properties of Aircraft Structural Metals. Beijing: Aviation Industry Press, 1996 (in Chinese)
[7] 王涛全, 车有金. Ⅰ-Ⅱ型复合裂纹初始裂纹开裂的三角函数表达式及其相应断裂判据分析. 中国锅炉压力容器安全, 2003, 19:27-30Wang Taoquan, Che Youjin. Expression of Trigonometric Function and Crack Criterion Analysis of the Initial Crack Angle of theCompound Crack Mode Ⅰ-Ⅱ. Chinese Boiler Pressure Container Safety, 2003, 19(4): 27-30 (in Chinese)
[8] 翟新康, 黄其青, 殷之平等. 飞机整体翼梁结构裂纹扩展试验与分析. 机械强度. 2007, 29(6):987-991Zhai Xinkang, Huang Qiqing, Yin Zhiping, et al. Crack Propagation Experiment and Analysis of Wing Beam Integrated Struc-ture. Journal of Mechanical Strength, 2007, 29(6):987-991 (in Chinese)
[9] 刘腾喜, 黄世请, 傅衣铭. 正交各向异性材料的混合硬化弹塑性本构方程. 应用数学和力学, 2003, 24(2):192-196Liu Tengxi, Huang Shiqing, Fu Yiming. The Constitutive Equations for Mixed Hardening Orthotropic Material. Applied Mathe-matics and Mechanics, 2003, 24(2):192-196 (in Chinese)
[10] 袁祖培, 郑 耀. 对于正交异性材料屈服与流动的探讨. 应用数学和力学, 1990, 11(3):233-238Yuan Zupei, Zheng Yao. A Study on Yield and Flow of Orthotropic Materials. Applied Mathematics and Mechanics, 1990, 11(3):233-238 (in Chinese)