Browsing NTNU Open by Author "Dai, Tianjiao"
Now showing items 1-7 of 7
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An anisotropic friction model in non-bonded flexible risers
Dai, Tianjiao; Sævik, Svein; Ye, Naiquan (Journal article; Peer reviewed, 2018)The present paper addresses small scale friction tests and an anisotropic friction model to predict friction for the interface between the anti-wear tape and tensile armors in non-bonded flexible risers. Small scale friction ... -
Anchor Hooking of Pipelines
Dai, Tianjiao (Master thesis, 2013)1.Pipeline material effectThe displacement and force of mid-element pipeline in local horizontal and verticalplane in the elastoplastic pipeline model are larger than that in the elastic model.In the opposite way the bending ... -
Comparison study of umbilicals' curvature based on full scale tests and numerical models
Dai, Tianjiao; Sævik, Svein; Ye, Naiquan (Journal article; Peer reviewed, 2016)A full scale test was carried out for a dynamic steel tube umbilical under combination of tensile and bending loads. The purpose of the test was to investigate the behavior of the dynamic bending under complex loading ... -
Experimental and numerical studies on dynamic stress and curvature in steel tube umbilicals
Dai, Tianjiao; Sævik, Svein; Ye, Naiquan (Peer reviewed; Journal article, 2020)The present paper addresses the stresses in dynamic steel tube umbilicals at the platform hang-off exposed to large motions corresponding to an extreme storm condition. Experimental tests were carried out by mounting ... -
Friction models for evaluating dynamic stresses in non-bonded flexible risers
Dai, Tianjiao; Sævik, Svein; Ye, Naiquan (Journal article; Peer reviewed, 2017)This paper addresses friction models used for evaluating dynamic stresses in non-bonded flexible risers. A review of the most commonly used methods to model friction between layers in such structures was performed. Four ... -
Investigations of Shear Interaction and Stress in Flexible Pipes and Umbilicals
Dai, Tianjiao (Doctoral theses at NTNU;2018:368, Doctoral thesis, 2018)The present thesis deals with numerical modeling and experimental testing related to dynamic stress behavior of flexible pipes and umbilicals, with particular focus on shear interaction and friction effects. For the ... -
OMAE2017-62644 The Effect of Stick Stiffness of Friction Models on the Bending Behavior in Non-Bonded Flexible Risers
Dai, Tianjiao; Ye, Naiquan; Sævik, Svein (Chapter; Peer reviewed, 2017)This paper investigates the effect of stick stiffness on the bending behavior in non-bonded flexible risers. The stick stiffness was normally implemented in the friction model for calculating the friction stress between ...