An approximate model for wave propagation in piezoelectric materials. I. Laminated composites

1999 ◽  
Vol 85 (4) ◽  
pp. 2337-2346 ◽  
Author(s):  
Adnan H. Nayfeh ◽  
Waseem Faidi ◽  
Wael Abdelrahman
Keyword(s):  
Wave Propagation ◽  
Piezoelectric Materials ◽  
Laminated Composites ◽  
Approximate Model

Approximate model for wave propagation in piezoelectric materials. II. Fibrous composites

1999 ◽  
Vol 85 (4) ◽  
pp. 2347-2354 ◽  
Author(s):  
Adnan H. Nayfeh ◽  
Jennifer J. Dong ◽  
Waseem Faidi
Keyword(s):  
Wave Propagation ◽  
Piezoelectric Materials ◽  
Approximate Model ◽  
Fibrous Composites

Simulation of the Influence of Bonding Materials on the Dynamic Behavior of Laminated Composites

1978 ◽  
Vol 45 (4) ◽  
pp. 822-828 ◽  
Author(s):  
Adnan H. Nayfeh ◽  
Elsayed Abdel-Ati M. Nassar
Keyword(s):  
Wave Propagation ◽  
Dynamic Behavior ◽  
Laminated Composites ◽  
Propagation Process ◽  
Bonding Material ◽  
Mixture Theories

Two model analyses are constructed in order to determine the influence of bonding materials on the dynamic behavior of otherwise bilaminated composites. The geometric arrangement of the composite with the bond is treated as a special type of a trilaminated composite in which each of its major constituents is sandwiched between two bonding layers. In the first model, the recently developed continuum mixture theories of wave propagation in bilaminated composites [2] are extended to treat the trilaminated composite. Here details of the propagation process in the major components and also in the bonding layers are derived. In the second model, the entire effect of the bonds is treated as a modifier to interfacial continuity conditions. In this model the details of the propagation process in the bonding material are ignored. It is found that the results of both models correlate well for relatively thin bonding layers.

A dispersive nonlocal model for shear wave propagation in laminated composites with periodic structures

2015 ◽  
Vol 49 ◽  
pp. 35-48 ◽  
Author(s):  
H. Brito-Santana ◽  
Yue-Sheng Wang ◽  
R. Rodríguez-Ramos ◽  
J. Bravo-Castillero ◽  
R. Guinovart-Díaz ◽  
...  
Keyword(s):  
Wave Propagation ◽  
Shear Wave ◽  
Periodic Structures ◽  
Laminated Composites ◽  
Nonlocal Model

Flash Radiographic Study of Shock Wave Propagation in Laminated Composites

1978 ◽  
Vol 17 (10) ◽  
pp. 1713-1718 ◽  
Author(s):  
Kunihito Nagayama ◽  
Masahiro Fujita ◽  
Ikuo Ohkawa
Keyword(s):  
Shock Wave ◽  
Wave Propagation ◽  
Laminated Composites ◽  
Shock Wave Propagation ◽  
Radiographic Study

A General Continuum Theory With Microstructure for Wave Propagation in Elastic Laminated Composites

1974 ◽  
Vol 41 (1) ◽  
pp. 101-105 ◽  
Author(s):  
G. A. Hegemier ◽  
T. C. Bache
Keyword(s):  
Wave Propagation ◽  
Continuum Model ◽  
Laminated Composites ◽  
Continuum Theory ◽  
Velocity Spectrum ◽  
Two Dimensional ◽  
One Dimensional ◽  
General Continuum ◽  
Hierarchy Of Models ◽  
Dimensional Wave

A continuum theory with microstructure for wave propagation in laminated composites, proposed in previous works concerning propagation normal and parallel to the laminates, is extended herein to the general two-dimensional case. Continuum model construction is based upon an asymptotic scheme in which dominant signal wavelengths are assumed large compared to typical composite microdimensions. A hierarchy of models is defined by the order of truncation of the obtained asymptotic sequence. Particular attention is given to the lowest order dispersive theory. The phase velocity spectrum of the general theory is investigated for one-dimensional wave propagation at various propagation angles with respect to the laminates. Retention of all terms in the asymptotic sequence is found to yield the exact elasticity spectrum, while spectral collation of the lowest order dispersive theory with the first three modes of the exact theory gives excellent agreement.

FINITE DIFFERENCE METHODS FOR ELASTIC WAVE PROPAGATION IN LAYERED MEDIA

2004 ◽  
Vol 12 (02) ◽  
pp. 257-276 ◽  
Author(s):  
M. TADI
Keyword(s):  
Wave Propagation ◽  
Finite Difference ◽  
Elastic Wave ◽  
Finite Difference Methods ◽  
Layered Media ◽  
Approximate Model ◽  
Elastic Wave Propagation ◽  
Elastic Solids ◽  
Long Time ◽  
Difference Methods

This paper is concerned with the numerical modeling of elastic wave propagation in layered media. It considers two isotropic homogeneous elastic solids in perfect contact. The interface is parallel to the free surface. Two finite difference methods are developed. The usefulness of the methods are investigated for long time simulations and the accuracy of the results are compared with the response from an approximate model.

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