Load shortening characteristics of marine grade aluminium alloy plates in longitudinal compression

Benson, Simon; Downes, J; Dow, Robert S.

doi:10.1016/j.tws.2013.04.006

Cited by 31 publications

(8 citation statements)

References 12 publications

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“…In marine industry, metals like aluminum alloy play tremendous roles in which they are used widely for shipbuilding, chemical plant, and offshore structure [22,23]. The increasing sector demand for higher speed performances and cheap assembly technology has made aluminum alloy as one of the best choices as a structural material for boats, vessels, and components [24,25]. The advantages of aluminum in many ways have propelled it into one of the widely used metals in the marine industries.…”

Section: Introductionmentioning

confidence: 99%

The Effect of Concentration of Lawsonia inermis as a Corrosion Inhibitor for Aluminum Alloy in Seawater

Zulkifli

Ali

Yusof

et al. 2017

Advances in Physical Chemistry

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Lawsonia inermis also known as henna was studied as a corrosion inhibitor for aluminum alloy in seawater. The inhibitor has been characterized by optical study via Fourier transform infrared spectroscopy (FTIR). The FTIR proves the existence of hydroxyl and carbonyl functional groups in Lawsonia inermis. Aluminum alloy 5083 immersed in seawater in the absence and presence of Lawsonia inermis was tested using electrochemistry method, namely, electrochemical impedance spectroscopy (EIS) and potentiodynamic polarization (PP). EIS and PP measurements suggest that the addition of Lawsonia inermis has caused the adsorption of inhibitor on the aluminum surface. The adsorption behavior of the inhibitor follow Langmuir adsorption model where the value of free energy of adsorption, -ΔG, is less than 40 kJ/mol indicates that it is a physical adsorption. Finally, it was inferred that Lawsonia inermis has a real potential to act as a corrosion inhibitor for aluminum alloy in seawater.

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Section: Introductionmentioning

confidence: 99%

The Effect of Concentration of Lawsonia inermis as a Corrosion Inhibitor for Aluminum Alloy in Seawater

Zulkifli

Ali

Yusof

et al. 2017

Advances in Physical Chemistry

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“…The results show good agreement with Eurocode' s formulation. The study was extended by Benson et al (2013b). A parametric dataset of loadshortening curves accounting for the axial compressive load was derived in assessing the ultimate global strength of aluminium hull girder using the progressive collapse method.…”

Section: Methodsmentioning

confidence: 99%

“…It can be seen that the increase of n will result in the flatness of the stress-strain curve. For 6082-T6 alloy, n is in the range of 15-47 (n = 30 is typically used), and the stress-strain curves are close to the elastic-perfectly plastic approximation (Zha and Moan 2001;Shesharma et al 2010;Benson et al 2013b). Accordingly, the elastic-perfectly plastic material model is selected, and it is acceptable for the comparative study, the ultimate strength of panels that are all made of 6082-T6 alloy.…”

Section: Finite Element Modelsmentioning

confidence: 99%

Study on Ultimate Compressive Strength of Aluminium-Alloy Plates and Stiffened Panels

Liu

Doan

Garbatov

et al. 2020

J. Marine. Sci. Appl.

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This work reviews the ultimate compressive strength of aluminium plates and stiffened panels. The effect of boundary condition, initial imperfection, welding-induced residual stress and heat-affected zone are discussed. As the effect of manufacturing technology lacks in the literature, this effect is analysed employing the finite element method, considering the technology of welding and integrated extrusion. The numerical analyses have shown that the ultimate strength of the integrated extruded stiffened panel is relatively higher than the one of the traditional welded panel.

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“…These are taken from plate [14] and stiffener [15] datasets. An example dataset for unstiffened plates are shown in Figure 4.…”

Section: Component Stress-strain Curve Datasetsmentioning

confidence: 99%

Overall buckling of lightweight stiffened panels using an adapted orthotropic plate method

Benson

Downes

Dow

2015

Engineering Structures

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The ultimate longitudinal bending strength of thin plated steel structures such as box girder bridges and ship hulls can be determined using an incremental-iterative procedure known as the Smith progressive collapse method. The Smith method first calculates the response of stiffened panel substructures in the girder and then integrates over the cross section of interest to calculate a momentcurvature response curve. A suitable technique to determine the strength behaviour of stiffened panels within the Smith method is therefore of critical importance. A fundamental assumption of the established progressive collapse method is that the buckling and collapse behaviour of the compressed panels within the girder occurs between adjacent transverse frames. However, interframe buckling may not always be the dominant collapse mode, especially for lightweight stiffened panels such as are found in naval ships and aluminium high speed craft. In these cases overall failure modes, where the buckling mode extends over several frame spaces, may dominate the buckling and collapse response. To account for this possibility, an adaptation to large deflection orthotropic plate theory is presented. The adapted orthotropic method is able to calculate panel stress-strain response curves accounting for both interframe and overall collapse. The method is validated with equivalent nonlinear finite element analyses for a range of regular stiffened panel geometries. It is shown how the adapted orthotropic method is implemented into an extended progressive collapse method, which enhances the capability for determining the ultimate strength of a lightweight stiffened box girder.

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Load shortening characteristics of marine grade aluminium alloy plates in longitudinal compression

Cited by 31 publications

References 12 publications

The Effect of Concentration of Lawsonia inermis as a Corrosion Inhibitor for Aluminum Alloy in Seawater

The Effect of Concentration of Lawsonia inermis as a Corrosion Inhibitor for Aluminum Alloy in Seawater

Study on Ultimate Compressive Strength of Aluminium-Alloy Plates and Stiffened Panels

Overall buckling of lightweight stiffened panels using an adapted orthotropic plate method

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