Efficient finite element model for dynamic analysis of laminated composite beam

2012 ◽  
Vol 42 (4) ◽  
pp. 471-488 ◽  
Author(s):  
M. Naushad Alam ◽  
Nirbhay Kr. Upadhyay ◽  
Mohd. Anas
Keyword(s):  
Finite Element ◽  
Finite Element Model ◽  
Dynamic Analysis ◽  
Composite Beam ◽  
Laminated Composite ◽  
Element Model ◽  
Laminated Composite Beam

Dynamic analysis of generally laminated composite beam with a delamination based on a higher-order shear deformable theory

2013 ◽  
Vol 49 (2) ◽  
pp. 141-162 ◽  
Author(s):  
Ramazan-Ali Jafari-Talookolaei ◽  
Maryam Abedi ◽  
Mohammad H Kargarnovin ◽  
Mohammad T Ahmadian
Keyword(s):  
Dynamic Analysis ◽  
Composite Beam ◽  
Laminated Composite ◽  
Higher Order ◽  
Laminated Composite Beam ◽  
Shear Deformable

Vibration and Sound Radiation Characteristics of Composite Flat-Panel Sound Radiator

2013 ◽  
Vol 431 ◽  
pp. 177-181
Author(s):  
C.H. Jiang ◽  
T.Y. Kam
Keyword(s):  
Finite Element ◽  
Finite Element Model ◽  
Response Spectrum ◽  
Sound Radiation ◽  
Laminated Composite ◽  
Element Model ◽  
Flat Panel ◽  
Radiation Characteristics ◽  
Experimental Approaches ◽  
Vibration And Sound Radiation

The vibration and sound radiation characteristics of laminated composite flat-panel sound radiators are studied via both theoretical and experimental approaches. In the theoretical study, a finite element model is presented to formulate the forced vibration of the sound radiators. The first Rayleigh integral is used to construct the sound pressure level curve of the sound radiators. In the experimental study, a laminated composite sound radiator was subjected to sweep sine excitation to determine the frequency response spectrum from which the natural frequencies of the sound radiator were identified. The sound radiator with salt powder distributed on its top surface was excited to generate the vibration shapes of the sound radiator at several selected frequencies. The SPL curve of the sound radiator was also measured experimentally. The experimental results are then used to verify the feasibility and accuracy of the proposed finite element model.

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