Novel dynamic model for calculating the equivalent Young's modulus and loss factor of layered beams

2020 ◽  
Vol 488 ◽  
pp. 115634
Author(s):  
Xuhao Du ◽  
Ming Jin ◽  
Andrew Guzzomi ◽  
Lingzhi Li ◽  
Jie Pan
Keyword(s):  
Young’S Modulus ◽  
Dynamic Model ◽  
Loss Factor ◽  
Young's Modulus ◽  
Layered Beams

scholarly journals DYNAMIC DUROMETER MEASUREMENT OF YOUNG'S MODULUS AND LOSS FACTOR

1992 ◽  
Vol 02 (C1) ◽  
pp. C1-869-C1-872
Author(s):  
W. M. MADIGOSKY ◽  
R. B. FIORITO
Keyword(s):  
Young’S Modulus ◽  
Loss Factor ◽  
Young's Modulus

Analytical analysis of vibration characteristics for the hard-coating cantilever laminated plate

2017 ◽  
Vol 232 (5) ◽  
pp. 813-824 ◽  
Author(s):  
Wei Sun ◽  
Xiaozhou Liu ◽  
Yue Zhang
Keyword(s):  
Young’S Modulus ◽  
Loss Factor ◽  
Young's Modulus ◽  
Vibration Reduction ◽  
Vibration Characteristics ◽  
Hard Coating ◽  
Laminated Plate ◽  
Ansys Software ◽  
Lagrange’S Equation ◽  
Natural Characteristics

For laminated plate served in high temperature and high corrosion environment, hard coating can be applied to suppress destructive vibration. While the creation of the dynamic model of hard-coating laminated plate is the premise of the research on vibration reduction. This study was focused on analyzing vibration characteristics of the hard-coating cantilever laminated plate under base excitation. Orthogonal polynomials were used as admissible displacement functions to formulate the displacement field, Lagrange’s equation was used to build the governing equations of both free vibration and forced vibration for the composite plate, and methods of solving the natural characteristics and the harmonic response were presented. A T300/QY89l1 laminated plate with NiCoCrAlY+YSZ hard coating was chosen to demonstrate the proposed method and obtained results were compared with the ones gotten by ANSYS software with the purpose of assessing the rationality of the developed analytical model. Finally, based on the established model, the influences of hard-coating parameters, including thickness, Young’s modulus, and loss factor, on the vibration characteristics of the laminated plate were studied. The results show that increasing the thickness, Young’s modulus and loss factor of hard coating are beneficial to vibration reduction of laminated plate.

Determination of the Young's Modulus and Loss Factor by Acoustic Bending Vibration Methods

2005 ◽  
Vol 297-300 ◽  
pp. 1958-1961 ◽  
Author(s):  
Su Hyun Shin ◽  
Yong Bong Lee ◽  
Sung Soo Jung ◽  
Doo Hee Lee
Keyword(s):  
Young’S Modulus ◽  
Loss Factor ◽  
Young's Modulus ◽  
Electromagnetic Excitation ◽  
Bending Vibration ◽  
Metal Disk ◽  
Metallic Specimen ◽  
Metallic Sample ◽  
Good Agreement

A new acoustic bending vibration method of determining the resonance frequency, Young’s modulus and loss factor applicable for both metallic and non-metallic materials is proposed. Measurements were conducted by using both conventional electromagnetic excitation method specified by ASTM E 756 and ISO 6721 and our method for conductive metallic specimen of stainless steel and non-metallic polypropylene specimen. Difference in the mechanical properties observed between both methods is attributed to the presence of a metal disk attached to the non-metallic sample for electromagnetic. However, the good agreement between the results obtained by both methods for the metallic sample ascertains the reliability and advantages of the method.

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