Results 241 to 250 of about 1,796,615 (281)
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Bender Elements: Performance and Signal Interpretation
Journal of Geotechnical and Geoenvironmental Engineering, 2005Bender elements are convenient shear wave transducers for instrumenting soil cells due to optimal soil-transducer coupling and compatible operating frequency. Experimental and analytical methods are implemented in this study to explore various aspects of bender element installations including: electromagnetic coupling prevention, directivity, resonant ...
Jong-Sub Lee, J. Carlos Santamarina
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On the performance of bender elements in triaxial tests
Géotechnique, 2012This paper presents the results of a research programme in which the transfer functions of bender element/soil systems have been measured for various materials, set-ups and stress levels. The resulting database has allowed the characterisation of the inherent multi-vibrational nature of the system, and the interpretation challenges that this imposes ...
G. ALVARADO, M.R. COOP
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Effect of bender element installation in clay samples
Géotechnique, 2010In recent years, bender element (BE) testing has become a standard procedure used for the determination of the shear modulus of geomaterials. Before the test is conducted, the BE transducers are plugged on both ends of a soil sample. The installation of the BEs is likely to cause disturbance to the soil sample.
K.H. CHAN, T. BOONYATEE, T. MITACHI
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Tracking degradation of argillaceous rocks using bender elements
2011The results of a comprehensive experimental program focused on the study of progressive degradation processes on a low permeability argillaceous rock induced by hydraulic cycles is presented in the paper. Relative humidity cycles were applied with vapour transfer technique, and bender elements were used to evaluate the evolution of shear stiffness ...
Pineda, Jubert Edgar +2 more
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Modeling of sensor function for piezoelectric bender elements
Journal of Zhejiang University-SCIENCE A, 2008zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Zhou, Yan-Guo +3 more
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Effect of Clamping and Damping on Piezoelectric Bender Elements
The Journal of the Acoustical Society of America, 1970Piezoelectric benders are commonly utilized for transducing elements in phonograph cartridges or reciprocally as emf-force devices. Their behavior in these applications has been well delineated in the literature. When the bender, used as a memory-storage element, is clamped and damped by an encapsulant, it exhibits anomalous behavior, which is not ...
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Time and frequency domain evaluation of bender element systems
Géotechnique, 2015Bender elements are used to measure the low-strain shear-wave velocity of soils in many geotechnical laboratories worldwide. Despite their popularity, the method remains without a standard, mainly owing to the difficulties in controlling the actual behaviour of the bender element inside the specimen.
J. F. Camacho-Tauta +3 more
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Bender elements: bad source – good receiver
2008Shear wave velocity measurement in the laboratory, by means of Bender Elements is becoming more and more popular for geotechnical characterization. The reasons of the increasing popularity of such method are well known and among the many the “apparent” simplicity of the testing method should be mentioned.
PALLARA O +2 more
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A simple approach for assessing the quality of bender elements
Géotechnique LettersBender elements are frequently used in geotechnical laboratories worldwide. In the first decades of introducing bender elements for soil testing, in the 1980s and 1990s, the quality of the bender elements was a main research topic. After noticeable findings about wiring, shielding, and other design features, the focus of the research moved towards ...
R. Shahgholian +2 more
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Characteristics of meta-kaolin geopolymer Bender-Element (BE) test
Materials Today: Proceedings, 2018Abstract Bender element (BE) test is a non-destructive test and is commonly used as an ultrasonic shear wave (S-wave) technique for determining the stiffness of materials. In this research, the ultrasonic shear wave was measured by using the piezoceramic BE in order to monitor the setting and the hardening process of meta-kaolin based geopolymer (MKG)
Keeratikan Piriyakul +1 more
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