Results 251 to 260 of about 8,225,610 (293)
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Numerical modelling of bender element test in soils
Measurement: Journal of the International Measurement Confederation, 2020Abstract Shear and compression wave velocities (Vs and Vp, respectively) are considered to be very useful for determining various dynamic properties of soils such as small strain shear modulus, Gmax, elastic modulus, Emax and the Poisson’s ratio, ν. Moreover, the index as well as engineering properties of the soil mass can be directly or indirectly ...
Anjan Patel
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Determination of the Material Damping Ratio with the Bender Element Test
Journal of Geotechnical and Geoenvironmental Engineering, 2008 The bender element test has shown to be a reliable tool to determine the shear wave velocity. This paper aims to extend the bender element technique to also measure the material damping ratio in a triaxial cell. Three different interpretation techniques are developed for this purpose. The first technique uses a modal test of a cylindrical soil specimen
Lutz Karl +3 more
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Modeling a bender element test using Abaqus Finite Element Program [PDF]
, 2011 Finite Element Methods hold promise for modeling the behavior of an unsaturated soil specimen subjected to bender element agitation. The immediate objective of this research project is to reproduce a bender element test using Abaqus Finite Element Software assuming elastic and isotropic conditions.
Johnson, Sean (Sean Michael)
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A Toolbox for the Automatic Interpretation of Bender Element Tests in Geomechanics
2022The small strain shear modulus is an important characteristic of geomaterials that can be measured using bender element experiments. However, most conventional interpretation techniques are based on the visual observation of the output signal and are inherently subjective.
Ionuţ Dragoş Moldovan +2 more
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Measurement Biases in the Bender Element Test
Journal of Geotechnical and Geoenvironmental Engineering, 2007This paper reconsiders the signals that are transmitted in bender element tests and the associated transfer functions to identify the problems that bias the velocity (travel time) determination. The findings of the numerical and physical experiments show that errors appearing in the velocity estimation can be traced to (1) the near-field effect and (2)
Yan, WM, Wang, YH, Lo, KF, Dong, XB
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Analysis of Bender Element Tests
Geotechnical Testing Journal, 1998Abstract A study is presented of potential errors in, and methods of interpreting, the results of cantilever-type, piezoceramic bender element tests for measuring the shear wave velocity of laboratory soil specimens. Interpretations based on the first direct arrival in the output signal are often masked by near-field effects and may be ...
R Arulnathan, RW Boulanger, MF Riemer
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Instrumentation for bender element testing of soils
International Journal of Geotechnical Engineering, 2008AbstractDetermination of shear wave velocity in sands is necessary for safety of various civil engineering structures. With this in view, earlier researchers have employed, mainly, resonant column and bender elements to determine this parameter. However, resonant column tests can only be performed in especially designed apparatus, which is not only ...
P. Bartake, A. Patel, D. Singh
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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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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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Bender Element Testing and Discrete Element Modeling of Shear Wave in Granular Media
IFCEE 2015, 2015Shear wave velocity of granular materials is often measured by bender elements in laboratory to determine its engineering properties. However, the accurate interpretation of measured wave propagation can be challenging which requires better understanding of bender element and soil particle interactions, and shear wave propagation in granular materials.
Asheesh Pradhan, Xinbao Yu
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