The modal density of composite beams incorporating the effects of shear deformation and rotary inertia

2018 ◽  
Vol 423 ◽  
pp. 459-471 ◽  
Author(s):  
Richard Bachoo ◽  
Jacqueline Bridge
Keyword(s):  
Shear Deformation ◽  
Composite Beams ◽  
Rotary Inertia ◽  
Modal Density

Natural frequencies of composite beams with a variable fiber volume fraction including rotary inertia and shear deformation

2009 ◽  
Vol 30 (6) ◽  
pp. 717-726 ◽  
Author(s):  
Y. Bedjilili ◽  
A. Tounsi ◽  
H. M. Berrabah ◽  
I. Mechab ◽  
E. A. Adda Bedia ◽  
...  
Keyword(s):  
Shear Deformation ◽  
Fiber Volume Fraction ◽  
Natural Frequencies ◽  
Volume Fraction ◽  
Composite Beams ◽  
Rotary Inertia ◽  
Fiber Volume

Modal density and critical frequency of composite panels considering transverse shear deformation and rotary inertia

2020 ◽  
Vol 26 (17-18) ◽  
pp. 1503-1513
Author(s):  
K Renji
Keyword(s):  
Shear Deformation ◽  
Transverse Shear ◽  
Critical Frequency ◽  
Rotary Inertia ◽  
Transverse Shear Deformation ◽  
Bending Waves ◽  
Modal Density ◽  
The Face ◽  
Orthotropic Properties ◽  
Bending Wave

In this work, expressions for estimating the modal density, speed of the bending wave, critical frequency and coincidence frequency of panels are derived considering orthotropic properties of the face sheets, transverse shear deformation and the rotary inertia. Presence of rotary inertia results in an increase in the modal density and a reduction in the speed of the bending waves. The influence is significant at higher frequencies. The critical and coincidence frequencies increase due to rotary inertia. Results for a typical equipment panel of spacecraft are presented and they show the need for incorporating rotary inertia while determining these parameters.

Free vibration of composite beams including rotary inertia and shear deformation

1990 ◽  
Vol 14 (4) ◽  
pp. 269-279 ◽  
Author(s):  
K. Chandrashekhara ◽  
K. Krishnamurthy ◽  
S. Roy
Keyword(s):  
Free Vibration ◽  
Shear Deformation ◽  
Composite Beams ◽  
Rotary Inertia
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