Experimental study on frequency‐dependent elastic properties of weakly consolidated marine sandstone: effects of partial saturation

2020 ◽  
Vol 68 (9) ◽  
pp. 2808-2824
Author(s):  
Hui Li ◽  
Luanxiao Zhao ◽  
De‐hua Han ◽  
Jinghuai Gao ◽  
Hemin Yuan ◽  
...  
Keyword(s):  
Experimental Study ◽  
Elastic Properties ◽  
Partial Saturation ◽  
Frequency Dependent

scholarly journals Experimental study of the elastic properties of a triangular percolation network

1988 ◽  
Vol 49 (10) ◽  
pp. 1629-1634 ◽  
Author(s):  
A. Gilabert ◽  
M. Ben-Ayad ◽  
S. Roux ◽  
E. Guyon
Keyword(s):  
Experimental Study ◽  
Elastic Properties ◽  
Percolation Network

Analytic and Experimental Study of the Load Distribution on Spline Joints Length Considering the Contact Rigidity of the Bearing Surfaces

2012 ◽  
Vol 162 ◽  
pp. 74-83 ◽  
Author(s):  
Dan Mărgineanu ◽  
E. Mărgineanu ◽  
E.S. Zăbavă ◽  
A. M. Fârtă
Keyword(s):  
Experimental Study ◽  
Mechanical System ◽  
Elastic Properties ◽  
Load Distribution ◽  
Degrees Of Freedom ◽  
Surface Profile ◽  
Contact Rigidity ◽  
Contact Points ◽  
Actual Load ◽  
Contact Surfaces

The spline joints transmit torque from shafts to rotors by multiple contact surfaces. The joint's mechanical system is, therefore, undetermined, i.e. the number of contact points is much larger than the number of restricted degrees of freedom. Thus, the actual load distribution is greatly influenced by the joints elements elastic properties and their geometrical errors and surface profile. In this paper, an analytical and experimental study for the load distribution on the in joints length caused by the finite rigidity of the joints elements is presented.

Study on the Magnetic Hysteresis of Terfenol-D Using New Hybrid Model

2014 ◽  
Vol 605 ◽  
pp. 519-522
Author(s):  
Soheil Talebian ◽  
Yousef Hojjat ◽  
Mojtaba Ghodsi ◽  
Mohammad Reza Karafi
Keyword(s):  
Mathematical Modeling ◽  
Experimental Study ◽  
Hybrid Model ◽  
Magnetic Hysteresis ◽  
Magnetic Behavior ◽  
Frequency Dependent ◽  
First Order ◽  
Frequency Independent

One of the main characteristics of Terfenol-d is the magnetic hysteresis, which leads to nonlinearity in mechanical-magnetic behavior. In this paper, magnetic hysteresis of Terfenol-d at different frequencies has been studied experimentally and theoretically. For experimental study, a setup has been fabricated and major hysteresis and first order reversal loops were obtained at different frequencies. Mathematical modeling of magnetic hysteresis has been done by introducing a new hybrid model which is developed by combination of Preisach and Tangent Hyperbolic models. The hybrid model can reduce the number of experiments and can be used for both frequency-independent and frequency-dependent hysteresis states.

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