Development of an image-based 3D deformation measurement system for triaxial testing

Zewen Wang

doi:10.26182/amn7-2z95

Development of an image-based 3D deformation measurement system for triaxial testing

Zewen Wang

Research output: Thesis › Doctoral Thesis

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Abstract

This study presents the development of a simple and cost-effective method for accurately measuring the three-dimensional deformation of soil specimens during triaxial tests. It is possible to derive constitutive parameters using this information in conjunction with other measurements obtained from conventional triaxial tests. The current accuracy of measuring the vertical displacement is shown to be ±0.001 mm. A series of triaxial tests on sand samples with different densities and consolidation histories is used to demonstrate that the image analysis technique can replace local strain instrumentation and bender elements employed in triaxial tests.

Original language	English
Qualification	Doctor of Philosophy
Awarding Institution	The University of Western Australia
Supervisors/Advisors	Lehane, Barry, Supervisor Doherty, James, Supervisor
Award date	1 Feb 2023
DOIs	https://doi.org/10.26182/amn7-2z95
Publication status	Unpublished - 2023

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10.26182/amn7-2z95

THESIS - DOCTOR OF PHILOSOPHY - WANG, Zewen - 2023
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Cite this

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AB - This study presents the development of a simple and cost-effective method for accurately measuring the three-dimensional deformation of soil specimens during triaxial tests. It is possible to derive constitutive parameters using this information in conjunction with other measurements obtained from conventional triaxial tests. The current accuracy of measuring the vertical displacement is shown to be ±0.001 mm. A series of triaxial tests on sand samples with different densities and consolidation histories is used to demonstrate that the image analysis technique can replace local strain instrumentation and bender elements employed in triaxial tests.

KW - Triaxial testing

KW - stiffness

KW - soil

KW - particle image velocimetry

U2 - 10.26182/amn7-2z95

DO - 10.26182/amn7-2z95

M3 - Doctoral Thesis

ER -

Development of an image-based 3D deformation measurement system for triaxial testing

Abstract

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