Phase method of ultrasonic velocity measurement for the control of elastic properties of materials

1997 ◽  
Vol 101 (5) ◽  
pp. 3087-3087
Author(s):  
Stanislav M. Mayevskyyi
Keyword(s):  
Elastic Properties ◽  
Ultrasonic Velocity ◽  
Velocity Measurement ◽  
Phase Method ◽  
Properties Of Materials

Ultrasonic velocity measurement of crystallization rates of palm oil in oil-water emulsions

1997 ◽  
Vol 128 (1-3) ◽  
pp. 217-224 ◽  
Author(s):  
Y. Hodate ◽  
S. Ueno ◽  
J. Yano ◽  
T. Katsuragi ◽  
Y. Tezuka ◽  
...  
Keyword(s):  
Ultrasonic Velocity ◽  
Palm Oil ◽  
Velocity Measurement ◽  
Oil Water

Monitoring Crystallization in Simple and Mixed Oil-in-Water Emulsions using Ultrasonic Velocity Measurement

1991 ◽  
pp. 171-179 ◽  
Author(s):  
Eric Dickinson ◽  
Michael I. Goller ◽  
D. Julian McClements ◽  
Malcolm J.W. Povey
Keyword(s):  
Ultrasonic Velocity ◽  
Velocity Measurement ◽  
Oil In Water ◽  
Mixed Oil

On the Applicability of Sneddon's Solution for Interpreting the Indentation of Nonlinear Elastic Biopolymers

2014 ◽  
Vol 81 (9) ◽  
Author(s):  
Man-Gong Zhang ◽  
Jinju Chen ◽  
Xi-Qiao Feng ◽  
Yanping Cao
Keyword(s):  
Elastic Properties ◽  
Viscoelastic Properties ◽  
Contact Theory ◽  
Elastic Contact ◽  
Flat Punch ◽  
Linear Elastic ◽  
Contact Models ◽  
Properties Of Materials ◽  
Nonlinear Elastic ◽  
Viscoelastic Contact

Indentation has been widely used to characterize the mechanical properties of biopolymers. Besides Hertzian solution, Sneddon's solution is frequently adopted to interpret the indentation data to deduce the elastic properties of biopolymers, e.g., elastic modulus. Sneddon's solution also forms the basis to develop viscoelastic contact models for determining the viscoelastic properties of materials from either conical or flat punch indentation responses. It is worth mentioning that the Sneddon's solution was originally proposed on the basis of linear elastic contact theory. However, in both conical and flat punch indentation of compliant materials, the indented solid may undergo finite deformation. In this case, the extent to which the Sneddon's solution is applicable so far has not been systematically investigated. In this paper, we use the combined theoretical, computational, and experimental efforts to investigate the indentation of hyperelastic compliant materials with a flat punch or a conical tip. The applicability of Sneddon's solutions is examined. Furthermore, we present new models to determine the elastic properties of nonlinear elastic biopolymers.

Ultrasonic Characterization of the Elastic Constants in an Aging Ti-6Al-4V ELI Alloy

2019 ◽  
Author(s):  
Hector Carreon
Keyword(s):  
Elastic Properties ◽  
Ultrasonic Velocity ◽  
Precipitation Process ◽  
Material Microstructure ◽  
Clear Trend ◽  
Sem Image ◽  
Wave Velocities ◽  
Ultrasonic Characterization ◽  
Α Phase

Abstract In this paper, we report the experimental data of the elastic properties of the young and shear modulus based on the variation in the ultrasonic velocity parameter during the microstructural evolution in a Ti-6Al-4V alloy with two varying microstructures, bimodal and acicular respectively. The two different initial microstructures, were treated thermally by aging at 515°C, 545°C and 575°C at different times from 1 min to 576hr to induce a precipitation process. Ultrasonic measurements of shear and longitudinal wave velocities, scanning electron microscopy (SEM) image processing, optical microscopy (OM) and microhardness were performed, establishing a direct correlation with the measurements of the ultrasonic velocity and the elastic properties developed during the thermal treatment of the artificial aging. The results of the ultrasonic velocity show a very clear trend as the aging time progresses, which is affected by precipitation of Ti3Al particles inside the α phase. In this way, we can know, in a fast and efficient way, the elastic properties developed during the heat treatment of aging at long times, since the presence of these precipitates hardens the material microstructure affecting the final mechanical properties.

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