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LIU Hou-jun, ZHANG Yu feng, HUO Li-xing. Development of Research on Rapid Propagation and Arrest of Cracks in Polyethylene Pressurized Pipelines[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 2002, (4): 87-90.
Citation: LIU Hou-jun, ZHANG Yu feng, HUO Li-xing. Development of Research on Rapid Propagation and Arrest of Cracks in Polyethylene Pressurized Pipelines[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 2002, (4): 87-90.
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Development of Research on Rapid Propagation and Arrest of Cracks in Polyethylene Pressurized Pipelines

  • College of Material Science and Engineering, Tianjin University, Tianjin 300072, China

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  • Received Date: November 11, 2001
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  • There are many instances where fluid pressure acting on the structure caused the structure to cracking and the cracks could be propagated rapidly or arrestded,which is regarded as the most advanced research field in dynamic fracture.The information and development which are related to polyehtylene pipes estimation methods of resistanc to crack propagation are described,including the principle and apparatus of test.Several dynamic analysis issues relating to rapid propagation and arrest in gas pipelines are presented in this paper.Some developments have been implemented into this finite element code to simulate the behavior of the fractured pipes.For the calculation of crack driving force,the numerical approaches using the nodal force release and energy balance methods are described.
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