RETRACTED: Response of ship hull laminated plates to close proximity blast loads

Chirica, Ionel; Boazu, Doina; Beznea, Elena Felicia

doi:10.1016/j.commatsci.2011.07.036

Cited by 12 publications

(12 citation statements)

References 7 publications

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“…The material used for the metallic ferry is steel 37 with the following properties shown in Table 1. [34]. The pontoon is composed of longitudinal, transverse, and vertical internal structural elements using different cross sections; three different equal angles (angle 80 × 8, angle 90 × 9, and angle 120 × 12), in addition to two main diaphragms using 2 different I-beam sections (IPE 160 and IPE 180), as shown in Figure 5.…”

Section: Geometry and Materialsmentioning

confidence: 99%

Dynamic Behavior of Steel and Composite Ferry Subjected to Transverse Eccentric Moving Load Using Finite Element Analysis

et al. 2020

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The most important problems confronted by designers of floating structures are minimizing weight and increasing payload to get proper resistance to the applied loads. In the present study, the structural performance of a ferry is analyzed using both metallic and composite materials as a result of the dynamic load of the Military Load Capacity (MLC) 70 (tank load). The model is composed of sixteen floating pontoons. Finite element simulation and dynamic analysis were performed using ANSYS software (analysis system software), considering a moving MLC70 (tank load). Both concentric and eccentric cases of loading are considered. Draft, deformation, and stresses are obtained and investigated. For the steel ferry, the von-Mises stresses are investigated, while for the composite ferry, the maximum principal stresses are investigated. Furthermore, buckling analysis is performed on the composite ferry and the buckling load factor is determined. The results of the dynamic analysis illustrated that the transverse eccentricity of the moving tank MLC70 must not exceed 0.5 m for a steel ferry while it may reach up to 1.5 m for the composite ferry. This research can also be a useful tool in the design of floating composite and steel ferries.

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Section: Geometry and Materialsmentioning

confidence: 99%

Dynamic Behavior of Steel and Composite Ferry Subjected to Transverse Eccentric Moving Load Using Finite Element Analysis

et al. 2020

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“…These scenarios should include studying such aspects (explosive magnitude, distance from source of explosion, structure scantling, complex fluidstructure interaction phenomena, structure geometry, etc.) [2].…”

Section: Introductionmentioning

confidence: 99%

“…It was shown that the tie-break interface option in LS-DYNA can be used successfully in simulating cohesive cracks. Chirica and Boazu [2] studied the response of ship hull laminated plates to blast loads using finite-element computer code COSMOS/M. Various scenarios to evaluate the behavior of the ship structure laminated plate to blast loading are studied like explosive magnitude, distance from source of explosion, and plate thickness.…”

Section: Introductionmentioning

confidence: 99%

Numerical Simulation and Response of Stiffened Plates Subjected to Noncontact Underwater Explosion

Fathallah

Tong

et al. 2014

Advances in Materials Science and Engineering

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A numerical simulation has been carried out to examine the response of steel plates with different arrangement of stiffeners and subjected to noncontact underwater explosion (UNDEX) with different shock loads. Numerical analysis of the underwater explosion phenomena is implemented in the nonlinear finite element code ABAQUS/Explicit. The aim of this work is to enhance the dynamic response to resist UNDEX. Special emphasis is focused on the evolution of mid-point displacements. Further investigations have been performed to study the effects of including material damping and the rate-dependant material properties at different shock loads. The results indicate that stiffeners configurations and shock loads affect greatly the overall performance of steel plates and sensitive to the materials data. Also, the numerical results can be used to obtain design guidelines of floating structures to enhance resistance of underwater shock damage, since explosive tests are costly and dangerous.

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“…Nowadays, laminated composite panels are gaining popularity in maritime structural applications such as ship hulls, decks, and ship and offshore superstructures. These panels are becoming increasingly used in structural marine applications due to their high specific stiffness and high specific strength [1][2][3][4].…”

Section: Introductionmentioning

confidence: 99%

Torsion Dynamic Behaviour of the Ship Hull Made out of Layered Composites

Chirica

2013

Mathematical Problems in Engineering

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This paper addresses the dynamic torsion behaviour of the ship hull with very large open decks. A short overview of the past research is presented, and several key findings and behavioral characteristics are discussed. In the paper, the author is focusing on the dynamic part of a new macroelement model used for torsion dynamic analysis of the ship hull made of composite materials. The numerical analysis (using two methods, one of them being a new proposed method) and experiments are developed on a simplified typical hull of a container ship. The torsion analysis is performed on a scale model of a container ship, made of layered composite plates, and the first 5 natural frequencies are determined. The results obtained with the proposed numerical method (software code TORS, made by the author) are compared with the results obtained with FE analysis and with the experiments done on the physical model.

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RETRACTED: Response of ship hull laminated plates to close proximity blast loads

Cited by 12 publications

References 7 publications

Dynamic Behavior of Steel and Composite Ferry Subjected to Transverse Eccentric Moving Load Using Finite Element Analysis

Dynamic Behavior of Steel and Composite Ferry Subjected to Transverse Eccentric Moving Load Using Finite Element Analysis

Numerical Simulation and Response of Stiffened Plates Subjected to Noncontact Underwater Explosion

Torsion Dynamic Behaviour of the Ship Hull Made out of Layered Composites

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