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

机译:基于3D VCCT的管状断裂参数计算方法研究

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摘要

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)计算了管状试件的应力强度因子(SIF)。使用单变量方法分别分析了几何因素(内半径,壁厚和相对裂纹长度)和外部载荷对SIF的影响。最后,考虑到所有提到的因素,获得了紧凑拉伸管状试件的SIF近似公式,为管状工程设计提供了参考。

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