Determination of elastic constants of orthotropic plates by a modal analysis/Rayleigh-Ritz technique

1988 ◽  
Vol 124 (2) ◽  
pp. 269-283 ◽  
Author(s):  
L.R. Deobald ◽  
R.F. Gibson
Keyword(s):  
Modal Analysis ◽  
Elastic Constants ◽  
Orthotropic Plates

Theoretical Determination of Rigidity Properties of Orthogonally Stiffened Plates

1956 ◽  
Vol 23 (1) ◽  
pp. 15-20
Author(s):  
N. J. Huffington
Keyword(s):  
Elastic Constants ◽  
Orthotropic Plate ◽  
Constant Thickness ◽  
Stiffened Plates ◽  
Geometrical Configuration ◽  
Orthotropic Plates ◽  
Theoretical Determination

Abstract The analysis of bending and buckling of orthogonally stiffened plates may be simplified by conceptually replacing the plate-stiffener combination by an “equivalent” homogeneous orthotropic plate of constant thickness. This procedure requires the determination of the four elastic rigidity constants which occur in the theory of thin orthotropic plates. Methods are presented whereby these quantities may be determined analytically in terms of the elastic constants and geometrical configuration of the component parts of the structure.

Determination of orthotropic bone elastic constants using FEA and modal analysis

2002 ◽  
Vol 35 (6) ◽  
pp. 767-773 ◽  
Author(s):  
W.R. Taylor ◽  
E. Roland ◽  
H. Ploeg ◽  
D. Hertig ◽  
R. Klabunde ◽  
...  
Keyword(s):  
Modal Analysis ◽  
Elastic Constants

Experimental Determination of the Elastic Behavior of Orthotropic Plates

1965 ◽  
Vol 87 (3) ◽  
pp. 315-317 ◽  
Author(s):  
Stephen W. Tsai
Keyword(s):  
Experimental Determination ◽  
Experimental Method ◽  
Elastic Constants ◽  
The Self ◽  
Experimental Confirmation ◽  
Elastic Behavior ◽  
Orthotropic Plates ◽  
Filament Wound

A simple experimental method is proposed for the determination of the elastic constants of orthotropic plates. This method employs the self-stabilizing feature of the pure twisting tests, from which relations among the independent elastic constants can be derived. Using filament-wound materials as test specimens, good experimental confirmation of the proposed method is found.

Determination of Diffraction Elastic Constants of Gamma-Double-Prime in Polycrystalline Ni-Base Superalloys

2019 ◽  
Author(s):  
R.Y. Zhang ◽  
H.L. Qin ◽  
Z.N. Bi ◽  
J. Li ◽  
S. Paul ◽  
...  
Keyword(s):  
Elastic Constants

Investigation of Impact Profile and Isolation Effect in Automated Impact Device Design and Control for Operational Modal Analysis

2015 ◽  
Vol 137 (9) ◽  
Author(s):  
Z. C. Ong ◽  
C. C. Lee
Keyword(s):  
Modal Analysis ◽  
Isolation Effect ◽  
Time Averaging ◽  
Impact Device ◽  
Lack Of Information ◽  
Analysis Technique ◽  
And Control ◽  
Phase Angles ◽  
Synchronous Time

A novel modal analysis technique called impact-synchronous modal analysis (ISMA) was introduced in previous research. With the utilization of impact-synchronous time averaging (ISTA), this modal analysis can be performed in presence of ambient forces whereas the conventional analysis method requires machines to be totally shut down. However, lack of information of phase angles with respect to impact in ISMA has caused it to be labor-intensive and time-consuming. An automated impact device (AID) is introduced in this study in the effort to replace the manually operated impact hammer and prepare it to be used in the current practice of ISMA on the purpose of enhancing its effectiveness and practicability. Impact profile and isolation effect are noted to be the contributing parameters in this study. This paper devoted on calibrating and controlling of the AID which gives the desired impact profiles as compared to the manual impact hammer. The AID is found effective in the determination of dynamic characteristics when the device is isolated from the boundary condition of the test structure.

Brillouin-scattering determination of the elastic constants of epitaxial fccC60film

1995 ◽  
Vol 52 (12) ◽  
pp. R8707-R8710 ◽  
Author(s):  
D. Fioretto ◽  
G. Carlotti ◽  
G. Socino ◽  
S. Modesti ◽  
C. Cepek ◽  
...  
Keyword(s):  
Elastic Constants ◽  
Brillouin Scattering
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