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TECHNICAL PAPERS

Influence of Interference and Clamping on Fretting Fatigue in Single Rivet-Row Lap Joints

[+] Author and Article Information
K. Iyer

Department of Mechanical Engineering, University of Michigan, Ann Arbor, MI 48109

C. A. Rubin, G. T. Hahn

Department of Mechanical Engineering, Vanderbilt University, Nashville, TN 37203

J. Tribol 123(4), 686-698 (Dec 08, 2000) (13 pages) doi:10.1115/1.1352746 History: Received January 12, 1999; Revised December 08, 2000
Copyright © 2001 by ASME
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References

Figures

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(a) Multi-riveted, single rivet-row lap joint, of which one half-unit is considered for the three-dimensional half-symmetry finite element model. (b) The thickness of each panel is t=1.53 mm. The rivet is countersunk with a shank diameter of 6.12 mm; the rivet head diameter and height are 9.792 mm and 3.83 mm, respectively. (c) Plan view of the mesh. The overall length of the model is 306 mm, the length of the overlap region is 30.6 mm and the width of the model (half the repeat distance) is 15.3 mm.
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Schematic representation of different material constitutive (hardening) behaviors and their implications on the cyclic stress-strain history produced with a fixed mean stress and stress amplitude: (a) isotropic hardening; (b) elastic-linear-kinematic-plastic (ELKP) hardening.
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Finite element and analytical solutions for the contact pressure distribution in a pinned connection with an infinite sheet
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Comparisons of computed distributions of (a) the normalized contact pressure, p/σ and (b) interfacial slip distance obtained from the two-dimensional (2D) and three-dimensional (3D) finite element models
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Validity of the three-dimensional finite element model based on comparisons of measured and computed values of (a) overall in-plane joint displacement, and (b) and (c) out-of-plane panel movement near the rivet location
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Profile of a deformed mesh showing important rivet versus panel contact locations with (a) non-countersunk rivets, (b) countersunk rivets, and (c) definition of angular locations and depth in the three-dimensional models. Field D is absent with non-countersunk rivets.
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Important fretting fields observed in laboratory tested riveted lap joints
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(a) Variation of contact pressure at the shank-hole interface with angular location and depth for Model A0; (b) variation of contact pressure with angular location at depth z=t, where contact pressures peak, for Models A1 and A2.
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(a) Angular variation of contact pressure at the shank-hole interface in Models A3 and A4 at z=t, depth at which the pressures peak, (b) variation of in-plane displacement between the panel hole and rivet in Model A0.
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(a) Variation of in-plane slip amplitude at the shank-hole interface with angular location and depth for Model A0, (b) Angular variation in Models A1–A4 at depth z=t, where slip amplitudes peak
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(a) Variation of circumferential tensile stress, σθθ, in the panel and immediately adjacent to the hole surface under maximum load, with angular location and depth for Model A0, (b) variation with angular location at z=t, depth at which tensile stresses are greatest, for Models A1–A4
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Variation of conventional fatigue parameters at the rivet shank-panel hole interface at z=t for Models A0–A4: (a) cyclic stress range, Δσ; (b) mean stress, σm.
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Variation of fretting parameters with angular location at z=t, the depth at which the parameters peak, for Models A0–A4: (a) fretting wear parameter, F1; (b) fretting fatigue parameter, F2.
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(a) Variation of contact pressure at the shank-hole interface with angular location and depth for Model B0, (b) variation of contact pressure with angular location at depth z=t, where contact pressures peak, for Models B1 and B2
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(a) Angular variation of contact pressure at the shank-hole interface in Models B3 and B4 at z=t, depth at which the pressures peak, (b) Variation of in-plane slip between the panel hole and rivet in Model B0
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(a) Variation of in-plane slip amplitude at the shank-hole interface with angular location and depth for Model B0, (b) angular variation in Models B1–B4 at depth z=t, where slip amplitudes peak
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(a) Variation of circumferential tensile stress, σθθ, in the panel and immediately adjacent to the hole surface under maximum load, with angular location and depth for Model B0, (b) variation with angular location at z=t, depth at which tensile stresses are greatest, for Models B1–B4
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Variation of conventional fatigue parameters at the rivet shank-panel hole interface at z=t for Models B0–B4: (a) cyclic stress range, Δσ; (b) mean stress, σm.
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Variation of fretting parameters with angular location at z=t, the depth at which the parameters peak, for Models B0–B4: (a) fretting wear parameter, F1; (b) fretting fatigue parameter, F2.

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