Non-linear ultrasonic and viscoelastic properties of gelatine investigated in the temperature range of 30 °C–60 °C

2021 ◽  
Vol 33 (2) ◽  
pp. 022002
Author(s):  
Jan Dirk Heyns ◽  
Esam T. Ahmed Mohamed ◽  
Nico F. Declercq
Keyword(s):  
Viscoelastic Properties ◽  
Temperature Range ◽  
Non Linear

Non-linear creep-recovery measurements as a tool for evaluating the viscoelastic properties of wheat flour dough

2011 ◽  
Vol 107 (1) ◽  
pp. 50-59 ◽  
Author(s):  
Filip Van Bockstaele ◽  
Ingrid De Leyn ◽  
Mia Eeckhout ◽  
Koen Dewettinck
Keyword(s):  
Wheat Flour ◽  
Viscoelastic Properties ◽  
Creep Recovery ◽  
Flour Dough ◽  
Wheat Flour Dough ◽  
Linear Creep ◽  
Non Linear

Non-linear Response and Viscoelastic Properties of Lipid-Coated Microbubbles: DSPC versus DPPC

2015 ◽  
Vol 41 (5) ◽  
pp. 1432-1445 ◽  
Author(s):  
Tom van Rooij ◽  
Ying Luan ◽  
Guillaume Renaud ◽  
Antonius F.W. van der Steen ◽  
Michel Versluis ◽  
...  
Keyword(s):  
Viscoelastic Properties ◽  
Linear Response ◽  
Non Linear

scholarly journals Non-linear effects in the oscillating drop method for viscosity measurements

2020 ◽  
Vol 48 (3) ◽  
pp. 253-277 ◽  
Author(s):  
RAINER K. WUNDERLICH ◽  
MARKUS MOHR
Keyword(s):  
Time Constant ◽  
Space Station ◽  
Surface Oscillation ◽  
Temperature Dependent Viscosity ◽  
Temperature Range ◽  
Drop Method ◽  
Sample Shape ◽  
Decay Times ◽  
Non Linear ◽  
Oscillation Decay

The contribution of non-linear fluid flow effects to the damping of surface oscillations in the oscillation drop method was investigated in a series of experiments in an electromagnetic levitation device installed on the International Space station, ISS-EML. In order to correctly evaluate the damping time constant from measured surface oscillation decays the effect of a modulated signal response on measured surface oscillation decay curves was investigated. It could be shown that various experimentally observed signal patterns could be well represented by a modulated response. The physical origin of such modulations is seen in rotation and precession. Over a temperature range of 220 K covered by different surface oscillation excitation pulses with an initial sample shape deformation of 5 – 10% the amplitude of surface oscillations as a function of time could be very well represented by a Lamb type damping with a temperature dependent viscosity. A direct comparison of surface oscillation decay times measured in the same temperature range but for different oscillation amplitudes showed no non-linear contribution to the damping time constant with a confidence level better 10%.

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