Comparison of numerical formulations for the modeling of tensile loaded suction buckets

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• 作者：E.S. Sø ; rensen ; ^{ess@civil.aau.dk} ; J. Clausen ^{jc@civil.aau.dk} ; L. Damkilde ^{lda@civil.aau.dk}
• 关键词：u-p-U formulation ; u-p formulation ; Dynamic ; Quasi-static ; Suction bucket ; Tensile resistance
• 刊名：Computers and Geotechnics
• 出版年：2017
• 出版时间：March 2017
• 年：2017
• 卷：83
• 期：Complete
• 页码：198-208
• 全文大小：2047 K
• 卷排序：83

文摘

The tensile resistance of a suction bucket is investigated using three different numerical formulations. The first formulation utilizes the three-field u-p-U formulation accounting for solid and fluid displacements, u and U, as well as the pore-fluid pressure, p. The two other formulations comprise the simpler u-p formulation in its dynamic and quasi-static form, accounting only for solid displacement and pore-fluid pressure. As basis for comparison, the tensile resistance of a single suction bucket is investigated using a velocity-driven model for a wide range of velocities. It is found, that the quasi-static u-p formulation is sufficient for most relevant velocities.