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Study on Calculation Method of Fracture Parameters of the Tubular Based on 3D VCCT

机译:基于3D VCCT的管状裂缝参数计算方法研究

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The stress intensity factor (SIF) for tubular specimens were calculated based on virtual crack closure technique (VCCT). The effects of geometrical factors (inner radius, wall thickness and relative crack length) and external loads on the SIF were analyzed, respectively, by use of the single-variable approach. Finally, an approximate formula for SIF of compact-tensile tubular specimens was obtained as all factors mentioned were considered, which was presented as a reference for the tubular engineering design.
机译:基于虚拟裂纹闭合技术(VCCT)计算管状标本的应力强度因子(SIF)。通过使用单可变方法分别分别分别分别分析了几何因子(内半径,壁厚和相对裂缝长度)和外部载荷的影响。最后,获得了致密拉伸管状标本SIF的近似式,因为考虑了所有因素,这是作为管状工程设计的参考。

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