"Free Flexural Vibrations Response of Composite Mindlin Plates or Panels with a Centrally Bonded Symmetric Double Lap Joint (or Symmetric Double Doubler Joint)"

Date

2005-11-11

Author

Yuceoglu, U.
Guvendik, O.
Ozerciyes, V.

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The present study is concerned with the "Free Flexural Vibrations Response of Composite Mindlin Plates or Panels with a Centrally Bonded Symmetric Double Lap Joint (or Symmetric Double Doubler Joint). The plate "adherends" and the plate "doublers" are considered as dissimilar, orthotropic "Mindlin Plates" with the transverse and the rotary moments of inertia. The relatively, very thin adhesive layers are taken into account in terms of their transverse normal and shear stresses. The mid-center of the bonded region of the joint is at the mid-center of the entire system. In order to facilitate the present solution technique, the dynamic equations of the plate "adherends" and the plate "doublers" with those of the adhesive layers are reduced to a set of the "Governing System of First Order ordinary Differential Equations" in terms of the "state vectors" of the problem. This reduced set establishes a "Two-Point Boundary Value Problem" which can be numerically integrated by making use of the "Modified Transfer Matrix Method (MTMM) (with Interpolation Polynomials)". In the adhesive layers, the "hard" and the "soft" adhesive cases are accounted for. It was found that the adhesive elastic constants drastically influence the mode shapes and their natural frequencies. Also, the numerical results of some parametric studies regarding the effects of the "Position Ratio" and the "Joint Length Ratio" on the natural frequencies for various sets of support conditions are presented.

Subject Keywords

Natural frequencies, Beams

URI

https://hdl.handle.net/11511/66557

DOI

https://doi.org/10.1115/imece2005-79233

Collections

Department of Aerospace Engineering, Conference / Seminar

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Free bending vibrations of a centrally bonded symmetric double lap joint (or symmetric double doubler joint) with a gap in mindlin plates or panels Yuceoglu, U.; Guvendik, O.; Ozerciyes, V. (2007-11-16) In this present study, the "Free Bending Vibrations of a Centrally Bonded Symmetric Double Lap Joint (or Symmetric Double Doubler Joint) with a Gap in Mindlin Plates or Panels" are theoretically analyzed and are numerically solved in some detail. The "plate adherends" and the upper and lower "doubler plates" of the "Bonded Joint" system are considered as dissimilar, orthotropic "Mindlin Plates" joined through the dissimilar upper and lower very thin adhesive layers. There is a symmetrically and centrally lo...
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"ROTATION OF MATERIAL AXES EFFECTS ON FREE BENDING VIBRATIONS RESPONSE OF COMPOSITE MINDLIN BASE PLATES OR PANELS STIFFENED BY THREE BONDED PLATE STRIPS" Yuceoglu, U.; Javanshir, J.; Farsadi, T.; Guvendik, O. (2011-11-17) In the present study, the rotation of material axes on the free bending vibrations response of a certain type of composite "Bonded and Stiffened System" is theoretically analyzed and numerically solved with some numerical results. The composite "Bonded and Stiffened System" is composed of a "Mindlin Base Plate or Panel" reinforced by three "Bonded Stiffening Plate Strips". In the analysis, the 90 rotation effects of the material axes on the natural frequencies and the mode shapes of the entire "System" are ...

Citation Formats

U. Yuceoglu, O. Guvendik, and V. Ozerciyes, ““Free Flexural Vibrations Response of Composite Mindlin Plates or Panels with a Centrally Bonded Symmetric Double Lap Joint (or Symmetric Double Doubler Joint)”,” 2005, p. 585, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/66557.