29 May 2002 Fracture analysis of plastic-bonded explosive by digital image correlation technique
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Proceedings Volume 4537, Third International Conference on Experimental Mechanics; (2002) https://doi.org/10.1117/12.468795
Event: Third International Conference on Experimental Mechanics, 2002, Beijing, China
Abstract
Plastic-bonded explosive is a kind of energy material used in military and civil engineering. It serves also as structures or components to sustain external loads. Safety and reliability of the material is of importance to prevent damage and fracture during both manufacturing and usage procedure. Digital image correlation technique was applied to analyze the deformation field of the material near crack tip. The specimen was loaded by uniaxial compression and a slot was preset at the specimen edge with 45 degrees orientation. The speckle images were captured during the load and the surface patterns were matched by correlation computation to obtain the displacement components. The stress intensity factors of the crack tip were evaluated by the deformation in the near region of the crack. By the comparison of the strain field and the surface profile, the damage form of the material can be analyzed that showed brittle behavior with axial splitting fracture.
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M. Li, M. Li, J. Zhang, J. Zhang, Chun-Yang Xiong, Chun-Yang Xiong, J. Fang, J. Fang, Y. Hao, Y. Hao, M. P. Wen, M. P. Wen, } "Fracture analysis of plastic-bonded explosive by digital image correlation technique", Proc. SPIE 4537, Third International Conference on Experimental Mechanics, (29 May 2002); doi: 10.1117/12.468795; https://doi.org/10.1117/12.468795
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