Results 271 to 280 of about 6,147 (304)
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Resonant-Column Testing—Problems and Solutions

1978
The resonant-column test is a relatively nondestructive test employing wave propagation in cylindrical specimens of soil and rock. Test results are usually quite accurate, but in some cases insufficient coupling exists between specimen and apparatus or specimens are too stiff for a given apparatus, or both.
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Effect of Specimen Coupling on the Torsional Resonant Column Test

Geotechnical Testing Journal, 2013
Abstract The torsional resonant column is used to measure dynamic properties of soils. For this purpose, a sinusoidal torque is applied on a cylindrical specimen. The response of the specimen is used to derive the shear modulus and damping ratio of the specimen as functions of the induced shearing strain amplitude.
M. Picornell   +2 more
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Characterization of Warm Mix Asphalt through Resonant Column Testing

Journal of Materials in Civil Engineering, 2015
As the usage of warm mix asphalt (WMA) has gained popularity in recent years, the need has arisen for more characterization techniques and performance prediction through accelerated laboratory testing. This paper presents an experimental study on the shear modulus and damping ratio of asphalt specimens prepared using three WMA technologies: Evotherm ...
Pezhouhan Tavassoti Kheiry   +2 more
openaire   +1 more source

Difference between current and voltage measurements in resonant-column testing

Canadian Geotechnical Journal, 2003
The resonant-column test is one of the most common procedures for dynamic characterization of soils (American Society for Testing and Materials standard). The test procedures require the measurement of the current flowing through the driving coils. In many cases, however, the input voltage has been measured and the results analyzed as a traditional ...
Giovanni Cascante   +2 more
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Strain Measures for Transfer Function Approaches to Resonant Column Testing

Geotechnical Testing Journal, 2013
Abstract This paper presents strain measures to accompany a recently developed transfer function approach for resonant column testing of soils using a free-free apparatus. Although a number of past studies have proposed the use of random excitation or transfer functions in various forms, the new approach is unique in that the transfer ...
Ashlock, Jeramy   +2 more
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Sample Coupling in Resonant Column Testing of Cemented Soils

1990
Low-strain shear moduli of lightly cemented sand can be obtained by testing specimens in a resonant column. In the literature a variety of techniques have been suggested for coupling the sample to the base and cap of the device. These studies' results suggest that the shear modulus of cemented sand changes with confining pressure.
PL Lovelady, M Picornell
openaire   +1 more source

Control, acquisition and analysis of resonant-column testing using an automated program

2011
A Resonant-Column apparatus was modified by replacing the internal generator by an arbitrary function generator. A PC oscilloscope was used to acquire both the input current in coils and the vibration response of the system. Software developed in LabVIEW® controls the equipment, acquires data and then processes the information, computing the ...
Camacho- Tauta   +2 more
openaire   +1 more source

Discussion of “Evaluation of Resonant Column Test Devices”

Journal of the Geotechnical Engineering Division, 1977
Donald G. Anderson, Richard D. Woods
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Measurement of Damping in Soils by the Resonant Column Test

Geotechnical Frontiers 2017, 2017
Vincent P. Drnevich, Jeramy C. Ashlock
openaire   +1 more source

Closure to “Evaluation of Resonant Column Test Devices”

Journal of the Geotechnical Engineering Division, 1978
George R. Skoglund   +2 more
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