Modeling the propagation of elastic waves using a modified finite-difference grid

Wave Motion ◽  
2000 ◽  
Vol 31 (1) ◽  
pp. 77-92 ◽  
Author(s):  
Erik H. Saenger ◽  
Norbert Gold ◽  
Serge A. Shapiro
Keyword(s):  
Finite Difference ◽  
Elastic Waves ◽  
Difference Grid ◽  
Propagation Of Elastic Waves

Acoustic Emission Waves in Perfect-Bonded Bimaterial Plates: Numerical Simulations and Experiments

1991 ◽  
Vol 113 (4) ◽  
pp. 551-557 ◽  
Author(s):  
Tsung-Tsong Wu ◽  
Chiu-Long Kuo
Keyword(s):  
Acoustic Emission ◽  
Finite Difference ◽  
Numerical Simulations ◽  
Elastic Waves ◽  
Composite Plates ◽  
Finite Difference Schemes ◽  
Curing Time ◽  
Anisotropic Plates ◽  
Perfect Bonding ◽  
Propagation Of Elastic Waves

This paper utilized finite difference schemes to simulate the propagation of acoustic emission (AE) waves in isotropic, anisotropic plates as well as perfect-bonded bimaterial composite plates. Acoustic emission experiments were conducted to study the propagation of elastic waves in the aforementioned plates. The numerical simulated wave responses were in accordance with those measured experimentally. In the case of AE waves in perfect-bonded bimaterial composite plates, the agreements between the numerical and experimental results imply a possible application to the detection of perfect bonding. Demonstration of the effect of curing time on the acoustic emission waves in a bimaterial plate is also presented.

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