| Application of Fracture Mechanics in Explosion of Large Iron and Steel Wastes |
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| 作者姓名： | Wang Qizhi Li He Fen Tao Ying Guangzhi Tang Dehu |
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| 作者单位： | Wang Qizhi;Li He;Fen Tao;Ying Guangzhi;Tang Dehu |
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| 摘 要： | The ex plosio n process a n d paramete rs in the blast of large iron a nd steel wastesare analysed by using the theory of fracture mechanice.A three-dimensional model is established us-ing pressurised cylinder with multiple semi-elliptical surface cracks.Reasons are given for the expla-nation that the dynamic fracture toughness for iron and steel is generally lower than the correspond-ing static value during the blast.The importance is emphasized of the critical duration time of the dy-namic stress intensity factor for crack extension.
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| 关 键 词： | explosion technique fracture mechanics |
Application of Fracture Mechanics in Explosion of Large Iron and Steel Wastes |
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| Wang Qizhi,Li He,Fen Tao,Ying Guangzhi,Tang Dehu.Application of Fracture Mechanics in Explosion of Large Iron and Steel Wastes[J].Storage & Process,1994(1):134-138. |
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| Authors: | Wang Qizhi Li He Fen Tao Ying Guangzhi Tang Dehu |
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| Institution: | Wang Qizhi;Li He;Fen Tao;Ying Guangzhi;Tang Dehu |
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| Abstract: | The ex plosio n process a n d paramete rs in the blast of large iron a nd steel wastesare analysed by using the theory of fracture mechanice.A three-dimensional model is established us-ing pressurised cylinder with multiple semi-elliptical surface cracks.Reasons are given for the expla-nation that the dynamic fracture toughness for iron and steel is generally lower than the correspond-ing static value during the blast.The importance is emphasized of the critical duration time of the dy-namic stress intensity factor for crack extension. |
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| Keywords: | explosion technique fracture mechanics |
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