Fatigue crack propagation of new aluminum lithium alloy bonded with titanium alloy strap

被引：0

作者：

Sun Zhenqi ^{[1
,2
]}

Huang Minghui ^{[1
,2
]}

机构：

[1] School of Mechanical and Electrical Engineering, Central South University

[2] State Key Laboratory of High Performance Complex Manufacturing, Central South University

来源：

Chinese Journal of Aeronautics | 2013年 / 03期

关键词：

Aluminum lithium alloy; Bonding; Fatigue crack growth; Fatigue life; Stiffness ratio;

D O I：

暂无

中图分类号：

V252.2 [有色金属（总论）];

学科分类号：

0805 ; 080502 ;

摘要：

A new type of aluminum lithium alloy (Al-Li alloy) Al-Li-S-4 was investigated by test in this paper. Alloy plate of 400 mm · 140 mm · 6 mm with single edge notch was made into samples bonded with Ti-6Al-4V alloy (Ti alloy) strap by FM 94 film adhesive after the surface was treated. Fatigue crack growth of samples was investigated under cyclic loading with stress ratio (R) of 0.1 and load amplitude constant. The results show that Al-Li alloy plate bonded with Ti alloy strap could retard fatigue crack propagation. Retardation effect is related with width and thickness of strap. Flaws have an observable effect on crack propagation direction.

引用

页码：601 / 605

页数：5

共 7 条

[1] 局部加强的含裂纹板应力强度因子分析(英文) [J].

姜翠香 ;

赵耀 ;

刘土光 .

船舶力学, 2004, (03) :85-94

[2]

A modelling technique for calculating stress intensity factors for structures reinforced by bonded straps. Part I: Mechanisms and formulation[J] . M. Boscolo,X. Zhang.Engineering Fracture Mechanics . 2010 (6)

[3]

A modelling technique for calculating stress intensity factors for structures reinforced by bonded straps. Part II: Validation[J] . M. Boscolo,X. Zhang.Engineering Fracture Mechanics . 2010 (6)

[4]

The response of aluminium/GLARE hybrid materials to impact and to in-plane fatigue[J] . F. Bagnoli,M. Bernabei,D. Figueroa-Gordon,P.E. Irving.Materials Science & Engineering A . 2009 (1)

[5] Experimental study of fatigue crack growth behaviour in adhesively reinforced steel structures [J].

Liu, Hongbo ;

Al-Mahaidi, Riadh ;

Zhao, Xiao-Ling .

COMPOSITE STRUCTURES, 2009, 90 (01) :12-20

[6]

Effects of stress ratio and temperature on fatigue crack growth in a Ti–6Al–4V alloy[J] . J. Ding,R. Hall,J. Byrne.International Journal of Fatigue . 2005 (10)

[7] Investigation of a cracked thick aluminum panel repaired with a bonded composite patch [J].

Schubbe, JJ ;

Mall, S .

ENGINEERING FRACTURE MECHANICS, 1999, 63 (03) :305-323

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