Time domain prediction approach for cross-flow VIV induced fatigue damage of steel catenary riser near touchdown point

Wang, Kunpeng; Xue, Hong; Tang, Wenyong

doi:10.1016/j.apor.2013.09.003

Cited by 19 publications

(8 citation statements)

References 25 publications

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“…11, and proposed soil stiffness model considering soil suction and conservative large displacement soil stiffness model represented by dash line and dot dash line respectively. This study simulates the SCR-soil interaction with linear hysteretic model depicted by the loop: [6,27]. When the SCR uplift, the soil resistance decreases to zero at point 2, and then the clay suction mobilizes and then releases following: 2 / 3 / 4.…”

Section: Model Formulationmentioning

confidence: 99%

“…As an attempt, the trench corresponding to the buried zone of a SCR is related with the maximum penetration, riser diameter and mass per unit length. The horizontal length l B and l L , and the slope angle a of the linear zone are given as [27]: where jzj max is the maximum penetration in a trench, g, 4 and b are empirical trench shape parameters.…”

Section: Model Formulationmentioning

confidence: 99%

“…However, these codes cannot consider the IL VIV, or apply simple hydrodynamic coefficient in the IL direction. In regards to VIV induced fatigue damage at TDZ, a series of studies were carried out in time domain by Larsen et al [26] and Wang et al [27], while also limited to CF VIV.…”

Section: Introductionmentioning

confidence: 99%

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Time domain approach for coupled cross-flow and in-line VIV induced fatigue damage of steel catenary riser at touchdown zone

2015

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Section: Model Formulationmentioning

confidence: 99%

Section: Model Formulationmentioning

confidence: 99%

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Time domain approach for coupled cross-flow and in-line VIV induced fatigue damage of steel catenary riser at touchdown zone

2015

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“…In view of the limitations of linear riser-soil interaction (RSI) model, many research determined to develop the nonlinear RSI model. Wang et al (Song et al [2021], Wang et al [2013]) introduced a TDZ element into the riser-soil interaction simulation to improve the accuracy of the fatigue analysis at the TDZ.…”

Section: Problem For An Offshore Structure: Fatigue Damage At the Tou...mentioning

confidence: 99%

Review of Low Cycle Fatigue: Issues in Naval and Offshore Engineering

Delgado-Morales¹,

Palma²,

Gu³

et al. 2022

Fundamental Concepts and Models for the Direct Problem

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Fatigue can be understood as a process of progressive localized plastic strain that occurs in a material subject to cyclic stresses and strains at high stress concentration locations, whose concentration can cause cracks and culminate in the material's fracture. The fatigue process begins with the appearance of the crack, later on with growth, and finally propagation. The study of this phenomenon can be divided into the function of the material life in low and high cycle fatigue, but some studies address problems in the ultra-low and high number of cycles. This chapter addresses aspects of low cycle fatigue, as it is a relatively unexplored area and for which there are few references. Therefore, the main objective of this text is to describe the main aspects of low cycle fatigue, presenting diverse applications and potential problems in the context of fatigue behavior of materials. For this contribution, a review of the technical literature will be presented, considering relevant publications in the last decade. The text overview considers experimental and numerical aspects, fatigue damage, fracture behavior, thermomechanical fatigue, as well as real cases describing how a low-cycle fatigue problem can be defined and the way to approach it through the use of engineering tools found in the literature. Even though the low-cycle fatigue approach and analysis technique covers all engineering, the purpose of this chapter will be on marine and ocean engineering. Several cases described in the reviewed works will be addressed, where problems related to welded structures, turbines, pipelines, risers, mooring chains, floating systems, and wind platforms are presented, situations related to marine and offshore equipment will also be described, showing how low cycle fatigue can present itself in the various situations above, considering that low-cycle fatigue problems can cause structures to fracture, which could consequently cause serious injuries to life and marine environment. At the end of the chapter, potential applications and problems where this phenomenon can appear will be presented.

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“…Sidarta et al [12] developed VIV time domain prediction code, SimVIV, which used the lift coefficient in SHEAR7. Wang et al [13] used the forced vibration test data to predict CF-VIV of a riser test model carried out by Chaplin et al [14,15] in time domain and the fatigue damage of steel catenary riser near touchdown point was predicted by the numerical approach [16]. Thorsen et al [17,18] proposed a phase model of fluid force based on the CF forced vibration test data of rigid cylinder.…”

Section: Introductionmentioning

confidence: 99%

A practical approach to predicting cross-flow and in-line VIV response for deepwater risers

Xue

Wang

Tang

2015

Applied Ocean Research

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Time domain prediction approach for cross-flow VIV induced fatigue damage of steel catenary riser near touchdown point

Cited by 19 publications

References 25 publications

Time domain approach for coupled cross-flow and in-line VIV induced fatigue damage of steel catenary riser at touchdown zone

Time domain approach for coupled cross-flow and in-line VIV induced fatigue damage of steel catenary riser at touchdown zone

Review of Low Cycle Fatigue: Issues in Naval and Offshore Engineering

A practical approach to predicting cross-flow and in-line VIV response for deepwater risers

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