Experimental verification of RV-MTS model for fracture in soda-lime glass weakened by a V-notch |
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Authors: | M R Ayatollahi A R Torabi |
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Affiliation: | (1) Fatigue and Fracture Laboratory, School of Mechanical Engineering, Iran University of Science and Technology, Narmak, 16846-13114 Tehran, Iran;(2) Welding and Joining Research Center, School of Industrial Engineering, Iran University of Science and Technology, Narmak, 16846-13114 Tehran, Iran |
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Abstract: | Fracture phenomenon was experimentally investigated in a soda-lime glass weakened by a V-notch under tensile-shear loading.
Fracture tests were conducted using a new test sample called the V-notched Brazilian disc (V-BD) specimen. The fracture resistance
and fracture initiation angle were obtained initially from the test results. Afterward, a fracture model was utilized to estimate
the experimental results. Very good correlation was found between the experimental and theoretical results both for the fracture
resistance and the fracture initiation angle in notches having different notch angles and various notch tip radii. Experimental
results revealed that for a constant notch tip radius, the failure load under pure tensile loading conditions decreases as
the notch angle increases. For a constant notch angle, as the notch tip radius increases, the fracture load in the soda-lime
glass V-BD specimens enhances in the whole domain from pure tensile to pure shear loading. Moreover, for a constant notch
tip radius, the notch angle has almost no effect on the fracture initiation angle when the specimen is predominantly under
tensile loading conditions. |
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