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| THE 3D NUMERICAL SPECIMEN OF GRANITE BASED ON CT TECHNOLOGY AND APPLICATION |
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Abstract In this paper, the granite specimen is taken as an example, and the computerized tomography (CT) technology is employed to capture a serial of sectional images of the granite specimen, and achieved the identification and characterization of granite specimen structure based on CT image using digital image processing technology. After that, the 3D digitized solid model of material structure is reconstructed based on the vectorization?method and 3D Rock Failure Process Analysis (RFPA3D), and then the uniaxial compression process is simulated. By comparison, it is found that the failure modes of the numerical granite specimen are similar to that obtained from the experiment, which provides a new tool for deeply studying the mechanical behaviors of quasi-brittle materials such as rock and composite materials.
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Received: 16 March 2017
Published: 28 December 2017
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2017, Vol. 38 
