Prediction of hull girder moment-carrying capacity using kinematic displacement theory

Tayyar, Gökhan Tansel; Nam, Ji-Myung; Choung, Joonmo

doi:10.1016/j.marstruc.2014.07.004

Cited by 7 publications

(3 citation statements)

References 17 publications

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“…An analytical method for the deflection calculations using curvature values was originally reported with the application of an elastic rectangular tapered beam subjected to a tip moment [15]. Numerical analysis of an elastic perfectly plastic stiffened panel with KDT was presented by Bayraktarkatal and Tayyar [18] and Tayyar et al [19].…”

Section: Fundamentals Of Curvature-based Kinematic Planar Deflection mentioning

confidence: 99%

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A new approach for elasto-plastic finite strain analysis of cantilever beams subjected to uniform bending moment

Tayyar

2016

Sādhanā

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The reliability and limits of solutions for static structural analysis depend on the accuracy of the curvature and deflection calculations. Even if the material model is close to the actual material behavior, physically unrealistic deflections or divergence problems are unavoidable in the analysis if an appropriate fundamental kinematic theory is not chosen. Moreover, accurate deflection calculation plays an important role in ultimate strength analysis where in-plane stresses are considered. Therefore, a more powerful method is needed to achieve reliable deflection calculation and modeling. For this purpose, a new advanced step was developed by coupling the elasto-plastic material behavior with precise general planar kinematic analysis. The deflection is generated precisely without making geometric assumptions or using differential equations of the deflection curve. An analytical finite strain solution was derived for an elasto-plastic prismatic/non-prismatic rectangular cross-sectioned beam under a uniform moment distribution. A comparison of the analytical results with those from the Abaqus FEM software package reveals a coherent correlation.

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Section: Fundamentals Of Curvature-based Kinematic Planar Deflection mentioning

confidence: 99%

“…M is taken as M p at the tip of the tapered beam. The analytical solutions of the elastic and elasto-plastic material property are obtained using (19). FEM results were obtained using Abaqus software, and figure 12 plots the results of the deflected shape.…”

Section: Displacement Equations Of Tapered Beamsmentioning

confidence: 99%

A new approach for elasto-plastic finite strain analysis of cantilever beams subjected to uniform bending moment

Tayyar

2016

Sādhanā

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“…Improved assessment of ultimate bending capacity was proposed by Kitarovic and Zanic (2014) to enhance the ultimate limit state evaluation in the concept design of monotonous thin-walled structures, predominantly subjected to vertical bending loads during their exploration. The hull girder moment capacity of a Very Large Crude Carrier (VLCC), called energy concentration (EC), for which many benchmark studies have been conducted using the simple progressive collapse method (SPCM), was predicted by Tayyar et al (2014). The structural strength of the MV Nakhodka was investigated by Yao et al (1998); applying the NK Rule, longitudinal strength was examined and evaluated using a simplified method of progressive collapse analysis.…”

Section: Introductionmentioning

confidence: 99%

Progressive Collapse Analysis of the Local Elements and Ultimate Strength of a Ro-Ro Ship

Alie¹,

Latumahina²

2019

IJTech

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One of the most important criteria in ship design is strength. When a ship is under external loads such as waves, buoyancy or pressure, its internal reaction must resists those external loads. In this regard, external loads are retained by the hull girder, whose cross section is composed of plates and stiffeners, which have a significant influence on ultimate strength, especially in the longitudinal direction. Therefore, this strength must be assessed and evaluated for the ship structure and functional requirements. In this study, local elements of the ship cross section, such as plates and stiffeners, are analyzed, including their progressive collapse behavior. The example used for the calculation is a Roll-on/Roll-off (Ro-Ro) ship. The analysis is performed by assuming that the cross section remains plane and a one-frame space is considered. To calculate the ultimate strength of the Ro-Ro ship under hogging and sagging conditions, Smith's method is used and applied to an in-house program. The applied moment is given on the Multi Point Constraint (MPC) as the reference point of the neutral axis position. In this MPC position, a simple support is attached. The calculation of ultimate strength is made under hogging and sagging conditions, and the intact condition is focused on for the simple calculation. Welding residual stress, cracks, corrosion and initial deflection are not taken into account. Application of the FE method is also made to investigate the characteristics of the collapse mode for local elements and global structure, including ultimate strength.

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Optimal Risk-Based Maintenance Planning of Ship Hull Structure

Zareei

Iranmanesh

2018

J. Marine. Sci. Appl.

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Prediction of hull girder moment-carrying capacity using kinematic displacement theory

Cited by 7 publications

References 17 publications

A new approach for elasto-plastic finite strain analysis of cantilever beams subjected to uniform bending moment

A new approach for elasto-plastic finite strain analysis of cantilever beams subjected to uniform bending moment

Progressive Collapse Analysis of the Local Elements and Ultimate Strength of a Ro-Ro Ship

Optimal Risk-Based Maintenance Planning of Ship Hull Structure

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