TRANSIENT WAVE-PROPAGATION IN LAYERED MEDIA CONDUCTING HEAT

1991-01-22
TURHAN, D
CELEP, Z
ZAINEDDEN, IK
Show full item record
Creative Commons License
This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.
280
views
0
downloads
Transient wave propagation in thermoelastic layered composites consisting of alternating isotropic, homogeneous and linearly elastic high-strength reinforcing and low-strength matrix layers is investigated. The layers of the composite medium can be plane, cylindrical or spherical. The inner surfaces of the composite bodies are subjected to uniform time dependent dynamic inputs. A common formulation is employed for the three types of layered media. The generalized theory of thermoelasticity is used, with thermal relaxation predicting finite wave speeds for thermal disturbances. The method of characteristics is employed to obtain the solutions. Curves are plotted denoting the variations of normal stresses with time at different locations and variations of stresses along the thicknesses of the bodies at different times. The curves reveal the thermal and geometric dispersions in the wave profiles and the effects of reflections and refractions at the boundaries and the interfaces of the layers.
Mechanical Engineering, Acoustics and Ultrasonics, Mechanics of Materials, Condensed Matter Physics
https://hdl.handle.net/11511/66442
JOURNAL OF SOUND AND VIBRATION
Department of Computer Engineering, Article

Suggestions

Transient wave propagation in a viscoelastic layered composite—An approximate theory
Birlik, Gülin A.; Mengi, Yalçın (Elsevier BV, 1987-2)
The approximate theory proposed in reference [1] for viscoelastic layered composites is appraised by applying it to a transient wave propagation problem. The problem involves a viscoelastic slab subjected at one end to a dynamic pressure which has either step or trapezoidal variation in time while its other end is kept fixed. The faces of the slab are parallel to the layering. For the case in which the composite material is elastic, which can be obtained from viscoelastic case when viscous terms vanish, the...
Stability and breathing motions of pressurized compressible hyperelastic spherical shells
Akyüz, Uğurhan (Elsevier BV, 2001-10-18)
The stability of homogeneous, isotropic, compressible, hyperelastic, thick spherical shells subjected to external dead-load traction are investigated within the context of the finite elasticity theory. The stability of the finitely deformed state and small, free, radial vibrations about this state are investigated using the theory of small deformations superposed on large elastic deformations. The frequencies of small free vibrations about the pre-stressed state are obtained numerically. The loss of stabili...
Fluid-structure interactions with both structural and fluid nonlinearities
Bendiksen, O. O.; Seber, G. (Elsevier BV, 2008-08-19)
In this study, we consider a class of nonlinear aeroelastic stability problems, where geometric nonlinearities arising from large deflections and rotations in the structure interact with aerodynamic nonlinearities caused by moving shocks. Examples include transonic panel flutter and flutter of transonic wings of high aspect ratio, where the presence of both structural and aerodynamic nonlinearities can have a dramatic qualitative as well as quantitative effect on the flutter behavior. Both cases represent i...
THE HARMONIC RESPONSE OF UNIFORM BEAMS ON MULTIPLE LINEAR SUPPORTS - A FLEXURAL WAVE ANALYSIS
MEAD, DJ; Yaman, Yavuz (Elsevier BV, 1990-09-22)
A wave approach is developed for the exact analysis of the harmonic response of uniform finite beams on multiple supports. The beam may be excited by single or multi-point harmonic forces or moments; its supports may have general linear characteristics which may include displacement-rotation coupling. Use is made of the harmonic response function for an infinite beam subjected to a single-point harmonic force or moment. The unknowns of the finite beam problem are the support reaction forces/moments and the ...
Error analysis and feasibility study of dynamic stiffness matrix-based damping matrix identification
Özgen, Gökhan Osman (Elsevier BV, 2009-02-06)
Developing a method to formulate a damping matrix that represents the actual spatial distribution and mechanism of damping of the dynamic system has been an elusive goal. The dynamic stiffness matrix (DSM)-based damping identification method proposed by Lee and Kim is attractive and promising because it identifies the damping matrix from the measured DSM without relying on any unfounded assumptions. However, in ensuing works it was found that damping matrices identified from the method had unexpected forms ...
Citation Formats
D. TURHAN, Z. CELEP, and I. ZAINEDDEN, “TRANSIENT WAVE-PROPAGATION IN LAYERED MEDIA CONDUCTING HEAT,” JOURNAL OF SOUND AND VIBRATION, pp. 247–261, 1991, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/66442.
METU IIS - Integrated Information Service open@metu.edu.tr