Characterization of Granular Material Composite Structures Using Computerized Tomographyby Xiaogong Lee, Applied Research Associates, Inc, Tyndall AFB, United States,
William C. Dass, Applied Research Associates, Inc, Tyndall AFB, United States,
Charles W. Manzione, Applied Research Associates, Inc, Tyndall AFB, United States,
Abstract: The behavior of particulate composites such as asphaltic concrete is controlled by microstructural features including particle and binder arrangements, interparticle contacts, and changes in these composite structures under load. Defining parameters to describe microstructures is crucial to the development of micromechanical models. Computerized tomography (CT) offers an ideal method for non-intrusively examining internal composite structures. In this study, a high resolution industrial CT machine is used to acquire digital image data. Image processing techniques are developed to analyze the data and quantify composite structures.
Subject Headings: Composite structures | Granular materials | Materials characterization | Data processing | Computing in civil engineering | Composite materials | Radiography | Materials processing | Construction materials | Concrete structures | Material tests | Imaging techniques | Structural analysis | North America | Connecticut | United States
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