On disturbances in an elastic medium in contact with a liquid medium and subjected to a magnetic field

1969 ◽  
Vol 75 (1) ◽  
pp. 98-101
Author(s):  
S. Basu Mallik ◽  
D. K. Sinha
Keyword(s):  
Magnetic Field ◽  
Liquid Medium ◽  
Elastic Medium

Transverse surface waves in magneto-elasticity

1966 ◽  
Vol 62 (3) ◽  
pp. 541-545 ◽  
Author(s):  
C. M. Purushothama
Keyword(s):  
Magnetic Field ◽  
Wave Propagation ◽  
Surface Waves ◽  
Elastic Medium ◽  
Uniform Magnetic Field ◽  
Shear Waves ◽  
Plane Shear ◽  
Electrically Conducting ◽  
Velocity Of Propagation

AbstractIt has been shown that uncoupled surface waves of SH type can be propagated without any dispersion in an electrically conducting semi-infinite elastic medium provided a uniform magnetic field acts non-aligned to the direction of wave propagation. In general, the velocity of propagation will be slightly greater than that of plane shear waves in the medium.

Effect of magnetic field and gravity on two-temperature thermomicrostretch elastic medium under dual-phase lag model

2019 ◽  
Vol 94 (1) ◽  
pp. 69-79
Author(s):  
Mohamed I. A. Othman ◽  
Magda E. M. Zidan ◽  
Ibrahim E. A. Mohamed
Keyword(s):  
Magnetic Field ◽  
Elastic Medium ◽  
Phase Lag ◽  
Dual Phase ◽  
Lag Model ◽  
Two Temperature

The effect of temperature-dependent properties on generalized magneto-thermo-elastic medium with two-temperature under three-phase-lag model

2017 ◽  
Vol 13 (1) ◽  
pp. 122-134 ◽  
Author(s):  
Mohamed I.A. Othman ◽  
Yassmin D. Elmaklizi ◽  
Nehal T. Mansoure
Keyword(s):  
Magnetic Field ◽  
Elastic Medium ◽  
Modulus Of Elasticity ◽  
Phase Lag ◽  
Temperature Dependent ◽  
Content Type ◽  
Three Phase ◽  
Lag Model ◽  
Temperature Dependent Properties ◽  
Two Temperature

Purpose The purpose of this paper is to investigate the propagation of plane waves in an isotropic elastic medium under the effect of rotation, magnetic field and temperature-dependent properties with two‐temperatures. Design/methodology/approach The problem has been solved analytically by using the normal mode analysis. Findings The numerical results are given and presented graphically when mechanical and thermal force are applied. Comparisons are made with the results predicted by the three-phase-lag (3PHL) model and dual-phase-lag model in the presence and absence of cases where the modulus of elasticity is independent of temperature. Originality/value In this work, the authors study the influence of rotation and magnetic field with two‐temperature on thermoelastic isotropic medium when the modulus of elasticity is taken as a linear function of reference temperature in the context of the 3PHL model. The numerical results for the field quantities are obtained and represented graphically.

scholarly journals Gelatine-Coated Carbonyl Iron Particles and Their Utilization in Magnetorheological Suspensions

Materials ◽  
2021 ◽  
Vol 14 (10) ◽  
pp. 2503
Author(s):  
Tomas Plachy ◽  
Patrik Rohrer ◽  
Pavlina Holcapkova
Keyword(s):  
Magnetic Field ◽  
Liquid Medium ◽  
Carbonyl Iron ◽  
Magnetic Particles ◽  
Silicone Oil ◽  
Rheological Parameters ◽  
Iron Particles ◽  
Magnetorheological Suspensions ◽  
Magnetorheological Suspension ◽  
Dynamic Yield

This study demonstrates the formation of biocompatible magnetic particles into organized structures upon the application of an external magnetic field. The capability to create the structures was examined in silicone-oil suspensions and in a gelatine solution, which is commonly used as a blood plasma expander. Firstly, the carbonyl iron particles were successfully coated with gelatine, mixed with a liquid medium in order to form a magnetorheological suspension, and subsequently the possibility of controlling their rheological parameters via a magnetic field was observed using a rotational rheometer with an external magnetic cell. Scanning electron microscopy, infrared spectroscopy, and thermogravimetric analysis confirmed the successful coating process. The prepared magnetorheological suspensions exhibited a transition from pseudoplastic to Bingham behavior, which confirms their capability to create chain-like structures upon application of a magnetic field, which thus prevents the liquid medium from flowing. The observed dynamic yield stresses were calculated using Robertson–Stiff model, which fit the flow curves of the prepared magnetorheological suspensions well.

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