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.

　
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  • 管道斷裂時(shí)的裂縫擴展速度與服役溫度和DWTT剪切破裂面之間存在密切的相關(guān)性。本文從斷裂物理的角度對這種相關(guān)性的本質(zhì)進(jìn)行了分析。
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