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TECHNICAL PAPERS

Experimental and Analytical Investigations of the Dynamic Response of Adhesively Bonded Single Lap Joints

[+] Author and Article Information
A. Vaziri, H. Nayeb-Hashemi

Department of Mechanical, Industrial and Manufacturing Engineering, Northeastern University, Boston, MA 02115

H. R. Hamidzadeh

Department of Mechanical Engineering, Tennessee State University, Nashville, TN 37221

J. Vib. Acoust 126(1), 84-91 (Feb 26, 2004) (8 pages) doi:10.1115/1.1596550 History: Received July 01, 2001; Revised January 01, 2003; Online February 26, 2004
Copyright © 2004 by ASME
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References

Figures

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Schematic Model for a single lap joint
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Free body diagram for an element in region 2
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A typical dynamic response of a bonded joint struck by a wood block hammer, using an accelerometer to record the system response
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Frequency spectrum corresponding to the system response shown in Fig. 3, used to identify resonant frequencies obtained theoretically
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A typical dynamic response of a bonded joint struck by a wood block hammer, using a noncontact laser vibrometer
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Frequency spectrum corresponding to the system response shown in Fig. 5, used to identify resonant frequencies obtained theoretically
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A portion of a frequency response used to identify and to measure natural frequency and damping ratio ζ
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Transverse frequency response at the free end of the adhesively bonded joints with various adhesive loss factors. Joints were subjected to 1 N harmonic peeling load.
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Axial frequency response at the free end of the adhesively bonded joints with various adhesive loss factors. Joints were subjected to 1 N harmonic peeling load.
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Effect of the void size on the first three resonant frequencies of bonded joints
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Damping ratio of bonded joints vs. central void size
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First resonant frequency of the bonded joint vs. overlap length l2/l1, for joints with various h2/h1
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Variation of the first resonance frequency vs. h2/h1 for several Ea/E1
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Variation of the first resonance frequency vs. adhesive thickness, t/h1, for several h2/h1 ratios
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Distribution of peeling stress amplitude within the overlap for the bonded joint subjected to a 1 N harmonic force at five different frequencies. Adhesive was assumed to be elastic with η=0.
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Distribution of shear stress amplitude within the overlap for the bonded joint subjected to a 1 N harmonic force at five different frequencies. Adhesive was assumed to be elastic with η=0.

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