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    Volume 38, Issue 4 (July 2015)

    Development of an Internal Camera–Based Volume Determination System for Triaxial Testing

    (Received 29 October 2014; accepted 20 April 2015)

    Published Online: 15 July 2015

    CODEN: GTJODJ

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    Abstract

    A triaxial testing cell was instrumented with an internal camera monitoring system. By placing the camera monitoring system inside of the triaxial cell, optical distortions due to refraction at the confining fluid–cell wall and cell wall–atmosphere interfaces and the curvature of the cell wall were eliminated. The components of the system are presented. Furthermore, the photogrammetric techniques that were utilized to analyze the photographs that were captured from within the triaxial cell are discussed. The proposed methods for acquiring and analyzing the photographs are presented and the potential for the inclusion of an internal camera–monitoring system for triaxial testing applications are discussed.


    Author Information:

    Salazar, Sean E.
    EIT Graduate Research Assistant, Dept. of Civil Engineering, Univ. of Arkansas, Fayetteville, AR

    Barnes, Adam
    Geomatics Specialist, Center for Advanced Spatial Technologies, Univ. of Arkansas, Fayetteville, AR

    Coffman, Richard A.
    Assistant Professor, Dept. of Civil Engineering, Univ. of Arkansas, Fayetteville, AR


    Stock #: GTJ20140249

    ISSN:0149-6115

    DOI: 10.1520/GTJ20140249

    Author
    Title Development of an Internal Camera–Based Volume Determination System for Triaxial Testing
    Symposium ,
    Committee D18