Sage Journals: Discover world-class research

Abstract

Nowadays, ductile adhesives are entering the arena of structural applications due to their high strains to failure that is able to tolerate possible stress—strain concentrations, and due to their high damping performance, which is useful for energy dissipation. In this article, dynamic properties of such an adhesive are investigated using a vibrating beam technique with free—free end conditions. For the measurements of flexural modulus and damping values of the adhesive, the free layer beam configuration with different layer thicknesses was used. It is shown that the technique is able to give the consistent results and the data can be used for design purposes. The results suggest that the dynamic properties of the adhesive are frequency dependent at room temperature, which means the adhesive has a viscoelastic behavior.

Keywords

dynamic properties flexural modulus damping vibrating beam test free layer beam.

Get full access to this article

View all access options for this article.

References

Bishopp, J.M. , Davies, L. and Haslam, J.J. (1993). Chemical and Mechanical Characterization of Adhesive Matrices, Int. J. Adhes. Adhes. , 13: 111-119.

Willaway, T.A. and White, R.G. (1989). The Effects of Matrix Complex Moduli on the Dynamic Properties of CFRP Laminae, Composites Science and Tech., 36(1): 77-94.

Barton, J.M. and Greenfield, D.C.L. ( 1986). The Use of Dynamic Mechanical Methods to Study the Effect of Absorbed Water on Temperature-Dependent Properties of an Epoxy-Resin Carbon-Fiber Composite, British Polymer Journal, 18(1): 51-56.

Kluesner, M.F. (1986). Comparison of Damping Material Properties by Various Test Methods, Damping 1986 Proceedings, Air Force Wright Aeronautical Lab. Tech. Report AFWAL-TR -86-3059.

Drake, M.L. and Sircar, A. ( 1989). Comparison of Complex Modulus Data Generated by Three Different Measurements Techniques, Proceedings of Damping’89 , Vol. II, Air Force Wright Aeronautical Lab. p. FAB-1.

ASTM E756-83 (1983). Standard Method for Measuring Vibration-damping Properties of Materials, American Society for Testing and Materials.

Ross, D. , Ungar, E.E. and Kerwin, E.M. ( 1959). Damping of Plate Flexural Vibrations by Means of Viscoelastic Laminae, Proc. Colloq. Struct. Damping ASME, Atlantic City, NJ, USA 49-87

Nashif, A.D. , Jones, D.I.G. and Henderson, J.P. ( 1985). Vibration Damping, John Wiley and Sons.

Guild, F.J. and Adams, R.D. ( 1981). A New Technique for the Measurement of the Specific Damping Capacity of Beam in Flexure, J. Physics E: Sci. Instrum. , 14: 355-363.

10.

Dewa, H. , Okada, Y. and Nagai, B. ( 1991). Damping Characteristics of Flexural Vibration for Partially Covered Beams with Constrained Viscoelastic Layers, JSME International Journal, Series III, 34(2): 210-217.

11.

Rao, M.D. and Crocker, M.J. (1990). Vibrations of Bonded Beams with a Single Lap Adhesive Joint, Journal of Sound and Vibration, 92(2): 299-309.

12.

Park, T.H. ( 1997). Vibration and Damping Characteristics of a Beam with a Partially Sandwiched Viscoelastic Layer, Journal of Adhesion , 61(1-4): 97-122.

13.

Douglas, B.E. and Yang, J.C.S. (1978). Transverse Compressional Damping in the Vibratory Response of Elastic-Viscoelastic Beams , AIAA Journal, 16(9): 925-930.

14.

Qian, G.L. , Hoa, S.V. and Xiao, X. ( 1997). A Vibration Method for Measuring Mechanical Properties of Composite, Theory and Experiment, Composite Structures , 39: 31-38.

15.

Singh, M.M. ( 1993). PhD Thesis, Department of Mechanical Engineering, University of Bristol.

16.

Graessner, E.J. and Wong, C.R. (1992). M3D: Mechanics and Mechanisms of Material Damping, ASTM STP, 1169: 316-343.

17.

Oberst, H. and Frankenfeld, K. ( 1952). Uber die Damfung der Biegeschwingungen dunner Bleche durch festhaftende Belage, Acustica, 2: 181-194.

18.

Thomson, W.T. (1993). Theory of Vibration with Applications, 4th edn, Chapman & Hall, London.

19.

Kadioglu, F. ( 2000). Ph.D. Thesis, Department of Mechanical Engineering, University of Bristol.

20.

Gaitonde, J.M. (1991). Ph.D. Thesis, Department of Mechanical Engineering, University of Bristol.

Application of Vibrating Beam Method to Determine Dynamic Properties of Flexible Adhesives

Abstract

Keywords

Get full access to this article

References