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Dynamic response characteristic of 7N01/7A01/7050 aluminium multilayer plate at high strain rate |
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| Authors: | Guochuan Zhu Xiwu Li Baiqing Xiong Zhihui Li Yongan Zhang Lizhen Yan Kai Wen Hongwei Yan |
| Institution: | 1. State Key Laboratory of Nonferrous Metals and Processes, GRINM Group Co., LTD., Beijing, 100088, China;2. GRIMAT Engineering Institute Co., LTD., Beijing, 101407, China;3. General Research Institute for Nonferrous Metals, Beijing, 100088, China;4. State Key Laboratory for Performance and Structural Safety of Petroleum Tubular Goods and Equipment Materials, CNPC Tubular Goods Research Institute, Xi’an, 710077, China |
| Abstract: | The correlations between the structures, fracture behavior and dynamic shear property were investigated for 7050 to 7N01 layer of 7N01/7A01/7050 multilayer plate with different thickness ratio fabricated by hot rolling bonding. is The results showed that when thickness ratio of 7050 to 7N01 layer was 1 and 7050 layer was backplane, the absorbed energy of the multilayer plate was 39% higher than that of 7050 alloy. The excellent energy absorbing ability of 7N01/7A01/7050 multilayer plate is attributed to the blunted cracks in 7A01 interlayer, the enhanced 7050 layer by decreasing of secondary cracks and the delaying dynamic failure of 7050 layer. |
| Keywords: | Multilayer structure Structural Adiabatic shear band Fracture |
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