Stress intensity factor of cracks in bolted joints based on three-dimensional finite element analysis

被引：2

作者：

Yu D. ^{[1
]}

Chen Y. ^{[2
]}

机构：

[1] Department of Airborne Vehicle Engineering, Naval Aeronautical and Astronautical University

[2] Qingdao Branch, Naval Aeronautical and Astronautical University

来源：

Jixie Gongcheng Xuebao/Journal of Mechanical Engineering | 2011年 / 47卷 / 20期

关键词：

Bolted joint; Finite element method; Multiple cracks; Stress intensity factor;

D O I：

10.3901/JME.2011.20.121

中图分类号：

学科分类号：

摘要：

One of the major strength problems for bolted joint of aircraft is the onset and growth of cracks due to fatigue loading. But at present, the analysis of stress intensity factor (SIF) for bolted joint with crack are mainly based on two-dimensional finite element model. For that, three-dimensional (3D) finite element model of a bolted joint with cracks has been developed using the non-linear finite element code MSC Marc. Issues in modeling non-linear touching, and the friction between the joint parts, and the pre-stress force of bolt are all taken into account. SIF solutions along the thickness of bolted joint are obtained for different damage models. The results show that K I is dominant, and K II and K III have small contributions although the crack model beside hole is complex. SIF reaches maximum at the faying surface and minimum at the outside surface for all crack length. For a given crack length, SIF of a symmetric crack is always higher than the one of an asymmetric crack. SIF at the faying surfacing for countersunk is higher than that for straight hole for same crack length. But the trend of SIF at the outside surface is opposite. In other words, the type of fastener hole has a great influence on SIF of bolted joint. © 2011 Journal of Mechanical Engineering.

引用

页码：121 / 126

页数：5

共 11 条

[1]

Guo Z., Jiang J., Ke Y., Stiffness of postural alignment system based on 3-axis actuators for large aircraft components, Chinese Journal of Mechanical Engineering, 23, 4, pp. 524-531, (2010)

[2]

Chen Y., Yu D., Yang M., Et al., Finite element analysis of stress intensity factors of lap joint with multiple site damage, Acta Aeronautica Astronautica Sinica, 28, 3, pp. 615-619, (2007)

[3]

Huang Q., Zou C., Yin Z., Study on stress intensity factors of multiple-hole connected structure with multi-cracks, Journal of Mechanical Strength, 27, 5, pp. 661-665, (2005)

[4]

Chen Y., Yu D., Yang M., Et al., Study on stress intensity factors of multi hole riveted stiffened panels with multiple site damage, Acta Aeronautica Astronautica Sinica, 30, 2, pp. 270-275, (2008)

[5]

Camanho P.P., Matthews F.L., Delamination onset prediction in mechanically fastened joins in composite laminates, J. Composite Mater., 33, 10, pp. 906-927, (1999)

[6]

Mccarthy M.A., Mccarthy C.T., Finite element analysis of the effects of clearance on single shear, composite golted joints, J. Plastic, Rubbers Composites, 32, 2, pp. 65-70, (2003)

[7]

Wu J., Wang Q., Zhang X., Analytical closed form solution of load-displacement curve for cracked plates considering thickness effect of resistance curve, Journal of Mechanical Engineering, 46, 4, pp. 65-73, (2010)

[8]

Zhang Z., Zhang X., Lu W., Numerical method based on compatible manifold element for thin plate bending, Chinese Journal of Mechanical Engineering, 23, 1, pp. 100-109, (2010)

[9]

Wang J., Gao N., Gong W., Abrasive waterjet machining simulation by coupling smoothed particle hydrodynamics/finite element method, Chinese Journal of Mechanical Engineering, 23, 5, pp. 568-573, (2010)

[10]

Szolwinski M.P., Farriss T.N., Experimental observation of the effect of contact parameters on fretting crack nucleation, Proceedings of the 1995 USAF Structural Integrity Program Conference, pp. 237-252, (1995)

← 1 2 →