Material Loss Due to Two Fatigue Cracks Growth in Coalescence Between Two Holes in Aluminum-Alloy Strip

WANG Fangwen; CHEN Yiheng

您当前的位置：

首页 >

文章列表页 >

Material Loss Due to Two Fatigue Cracks Growth in Coalescence Between Two Holes in Aluminum-Alloy Strip

更新时间：2025-07-09

- Material Loss Due to Two Fatigue Cracks Growth in Coalescence Between Two Holes in Aluminum-Alloy Strip
- Vol. 43, Issue 3, Pages: 121-124(2009)
- 作者机构：
  
  西安交通大学航天航空学院,西安,710049
- 作者简介：
- 基金信息：
- DOI：
  CLC： O346.4
- Online First：10 March 2009，
  
  Published：2009
- 稿件说明：
移动端阅览
WANG Fangwen, CHEN Yiheng. Material Loss Due to Two Fatigue Cracks Growth in Coalescence Between Two Holes in Aluminum-Alloy Strip[J]. 2009, 43(3): 121-124.
DOI：

WANG Fangwen, CHEN Yiheng. Material Loss Due to Two Fatigue Cracks Growth in Coalescence Between Two Holes in Aluminum-Alloy Strip[J]. 2009, 43(3): 121-124. DOI：

摘要

此文是航空铝合金薄板在疲劳载荷下2个相邻孔洞聚合的系列试验研究之一.研究发现:在某些情况下

2条初始的疲劳裂纹几乎同时产生在应力集中程度较高的2个相邻孔洞之间的区域

在2个孔洞内边缘各产生一条裂纹

同时在疲劳载荷下扩展

相互不连接

直至到达对方孔洞的边缘

也就是说孔洞的聚合是由2条裂纹导致的

而不是通常的由一条裂纹导致

最终孔洞的聚合导致大块材料的损失

而2个孔洞外边缘的疲劳裂纹在孔洞聚合导致材料损失后才继续扩展.这是一个新现象

超出了疲劳裂纹萌生的基本理论

也无法用经典的弹塑性分析理论来解释.

Abstract

This paper is one of a series of studies for the coalescence between two neighborly located holes in an aluminum-alloy strip under cyclic tensile loadings. Under some conditions

two initial fatigue cracks were found to nucleate at each hole's rim in the center region between the two holes

where the stress concentration is much more violent than that in other positions. These two cracks grew simultaneously and leaded to the coalescence of the two holes. Thus

a large material loss occurred in the center region between the two holes. Only after the material loss completed

the two outside fatigue cracks tended to grow at the outside rims of the two holes until final failure occurs. This is a new phenomenon

which is difficult to be explained with the classical theories.

关键词

Keywords

references

SCHÜUTZ W. The prediction of fatigue life in the crack initiation and propagation stages: a state of the art survey [J]. Engineering Fracture Mechanics, 1979, 11(2): 405-421.

BUCH A. Prediction of fatigue life under aircraft loading with and without use of material memory rules [J]. International Journal of Fatigue, 1989, 11(2): 97-106.

KAJAWSKI D, ELLYIN F. A unified approach to mean stress effect on fatigue threshold conditions [J]. International Journal of Fatigue, 1995, 17(2): 101-106.

SOCIE D. Multiaxial fatigue damage models [J]. ASME J Eng Mater Technol, 1987, 109(3): 293-298.

GOLOS K, ELLYIN F. Total strain-energy density theory for cumulative fatigue damage [J]. ASME J Press Vess Tech, 1988, 110(1): 36-41.

ZHENG Xiulin. A further study on fatigue crack initiation life: mechanical model for fatigue crack initiation [J]. International Journal of Fatigue, 1986, 8(1): 17-21.

DUPART D, DAVY A, BOETSCH R, et al. Fatigue damage calculation in stress concentration fields under uniaxial stress [J]. International Journal of Fatigue, 1996, 18(4): 245-253.

SOCIE D, WAILL L A, DITTMER D F. Biaxial fatigue of Inconel 718 including mean stress effects [M]∥MILLER K J, BROWN M W. Multiaxial Fatigue, ASTM STP 853. Philadelphia, PA, USA: ASTM, 1985: 463-481.

MADI Y, MATHERON P, RECHO N, et al. Low cycle fatigue of welded joints: new experimental approach [J].Nuclear Engineering and Design, 2004, 228(1/3): 161-177.

MADI Y, RECHO N, MATHERON P. Low-cycle fatigue of welded joints: coupled initiation propagation model [J]. Nuclear Engineering and Design, 2004, 228(1/3): 179-194.

HURLEY P J, WHITTAKER M T, WILLIAMS S J, et al. Prediction of fatigue initiation lives in notched Ti 6246 specimens [J]. International Journal of Fatigue, 2008, 30(4): 623-634.

DUPART D, CAMPASSENS D, BALZANO M, et al. Fatigue life prediction of interference fit fastener and cold worked holes [J]. International Journal of Fatigue, 1996, 18(8): 515-521.

吕宝桐,张建国,凌超,等. 15MnVN钢疲劳性能的实验研究[J].机械强度, 1992, 14(4): 70-75.

LÜ Baotong, ZHANG Jianguo, LING Chao. Experimental investigation into fatigue behaviour of 15MnVN steel [J]. Journal of Mechanical Strength, 1992, 14(4): 70-75.

LÜ Baotong, ZHENG Xiulin, LI D. Fatigue crack initiation and propagation in butt welds of an ultrahigh strength steel [J]. Welding Research Supplement, 1993, 2(2): 79-86.

LÜ Baotong, ZHENG Xiulin. Predicting fatigue crack initiation life of an aluminum alloy below room temperature [J]. Fatigue Fract Eng Mater Struct, 1992, 15(12): 1213-1221.

TAY C J, TAY T E, SHANG Huaimin, et al. Fatigue crack initiation studies using a speckle techniques [J]. International Journal of Fatigue, 1994, 16(6): 423-428.

ZHENG Xiulin, LING Chao. On the expression of fatigue crack initiation life considering the factor of overloading effect [J]. Engineering Fracture Mechanics, 1988, 31(6): 959-966.

ZHENG Xiulin. Modeling fatigue crack initiation life [J]. International Journal of Fatigue, 1993, 15(6): 461-466.

THAUVIN G. Influence of surface roughness on fatigue and corrosion fatigue behavior of 0.12C-12Cr-2.5Ni-1.8Mo-0.3V steel [C]∥Proceedings of the 7th International Fatigue Congress, FATIGUE'99. Beijing, China: Higher Education Press, 1999:2347-2352.

SCHOELER K, CHRIST H J. Influence of prestraining on cyclic deformation behavior and microstructure of a single-phase Ni-base superalloy [J]. International Journal of Fatigue, 2001, 23(9): 767-775.

王芳文,陈宜亨. 航空铝合金薄板在疲劳载荷下孔洞聚合的试验研究和一个新发现[J].西安交通大学学报, 2009, 43(1): 125-128.

WANG Fangwen, CHEN Yiheng. A new find in experimental research on coalescence between two holes in aluminum-alloy strip under cyclic tensile loading [J]. Journal of Xi'an Jiaotong University, 2009, 43(1): 125-128.

Views

下载量

CSCD

Alert me when the article has been cited

提交

Tools

Publicity Resources

A New Find in Experimental Research on Coalescence Between Two Holes in Aluminum Alloy Strip under Cyclic Tensile Loading

A New Find in Experimental Research on Coalescence Between Two Neighbor Cracks in a Copper Strip under Cyclic Tensile Loadings

High-Order Peak-Valley Identification Method for Real-Time Tracking of Wind Turbine Fatigue Life

Prediction and Regression Design of Bionic Piston Fatigue Life

A Discrete Element Method of Spring-Connecting Rigid for Numerical Simulation of Cracks Propagation

Related Author

陈宜亨

王芳文

GUO Yiwen

LI Liangxing

GUI Jiabin

于春燕 1

田为军 3

刘鸿涛 2

Related Institution

State Key Laboratory of Multiphase Flow in Power Engineering, Xi'an Jiaotong University

Engineering Training Center, Changchun Institute of Technology

State Key Laboratory for Manufacturing Systems Engineering, Xi'an Jiaotong University

⁰