Deformation and Failure of Pre-Notched Thin Metal Plates Subjected to Confined Blast Loading

Abstract:

In this paper, the dynamic deformation and rupture of pre-notched thin metal plates subjected to confined blast loading were investigated. The thin copper plates with cross-shape pre-notch were clamped on the end of a confined cylinder vessel by a cover flange. An explosive charge with a mass of 4g was detonated in the vessel center to generate blast load acting on the metal plates. The images of metal plates were recorded by two high-speed cameras. The displacement and strain fields during the deformation and rupture process were measured by using 3D digital image correlation (3D DIC). The effects of pre-notches on the dynamic deformation and rupture of thin metal plates were analyzed. The microstructure of fracture surface was examined The 3D DIC technique is proven to be an effective method to conduct dynamic full-field deformation measurement.

• Periodical: Applied Mechanics and Materials (Volume 782)
• Pages: 49-58
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.782.49
• Online since: August 2015
• Authors: Han Liu, Peng Wan Chen, Bao Qiao Guo, Shao Long Zhang, Hai Bo Liu, Er Feng An
• Keywords: 3D Digital Image Correlation, Confined Blast Loading, Dynamic Deformation, Failure, Thin Metal Plates

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