The relationship between crack propagation speed of pipelines and the ductile tearing area of the dropweight tearing test(DWTT) specimens was analyzed from the angle of fracture physics in this work.

 
  • 管道断裂时的裂缝扩展速度与服役温度和DWTT剪切破裂面之间存在密切的相关性。本文从断裂物理的角度对这种相关性的本质进行了分析。
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