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    Suitable waves for bender element tests: Interpretations, errors and modelling aspects

    Access Status
    Open access via publisher
    Authors
    Rahman, Muhammad
    Pakrashi, V.
    Banerjee, S.
    Orr, T.
    Date
    2016
    Type
    Journal Article
    
    Metadata
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    Citation
    Rahman, M. and Pakrashi, V. and Banerjee, S. and Orr, T. 2016. Suitable waves for bender element tests: Interpretations, errors and modelling aspects. Periodica Polytechnica: Civil Engineering. 60 (2): pp. 145-158.
    Source Title
    Periodica Polytechnica: Civil Engineering
    DOI
    10.3311/PPci.7952
    ISSN
    0553-6626
    School
    Curtin Malaysia
    URI
    http://hdl.handle.net/20.500.11937/58665
    Collection
    • Curtin Research Publications
    Abstract

    © 2016, Technical University of Budapest. All rights reserved.Extensive research on bender element tests has been carried out by many researchers, but precise guidelines for carrying out such tests have not yet been established. It is often recommended that, when using a particular bender element test for the first time on a particular soil to determine its small strain dynamic properties, several methods should be tried and the results compared in order to improve confidence in the results obtained. Demonstrated use of relatively easy analytical models for investigating different scenarios of bender element testing is another aspect that should be further looked into. This paper presents laboratory experiments and dynamic finite element analyses to determine a suitable wave for use in bender element tests in the laboratory to measure small strain shear stiffness (Gmax). The suitability of a distorted sine wave over a continuous sine wave for tests is observed from laboratory experiments and dynamic finite element analyses. The use of simple finite element models for assessing a number of aspects in relation to bender element testing is demonstrated.

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