Sensitivity analysis on ultimate strength of aluminium stiffened panels

Rigo, Philippe; Sarghiuta, R.; Estefen, Segen F.; Lehmann, Eike; Otelea, S.C; Pasqualino, Ilson Paranhos; Simonsen, Bo Cerup; Wan, Zhinian; Yao, Takeshi

doi:10.1016/j.marstruc.2003.09.002

Cited by 48 publications

(39 citation statements)

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“…The three-span model used in benchmark study of Rigo et al (2003). Rigo et al (2003) considered a three-span plate with L-shaped stiffeners fabricated from aluminium profiles, joined by welding, for the finite element analyses.…”

Section: Figurementioning

confidence: 99%

“…Rigo et al (2003) considered a three-span plate with L-shaped stiffeners fabricated from aluminium profiles, joined by welding, for the finite element analyses. This model is also selected for the present study.…”

Section: Figurementioning

confidence: 99%

“…Figure 1 illustrates the geometrical specification of the model with the XYZ coordinate system and the U-V-W corresponding displacements. Rigo et al (2003) performed a detailed benchmark study on the ultimate strength of stiffened aluminium plates under in-plane compression. They introduced this model as an appropriate model for conducting finite element investigations with reliable results when studying the behaviour of axially compressed aluminium stiffened plates.…”

Section: Figurementioning

confidence: 99%

“…In the present study, as proposed by Rigo et al (2003), along the longitudinal edges (unloaded), the assumed boundary conditions of the stiffened plates are simply supported which are kept straight (constrained edges).…”

Section: Boundary and Loading Conditionmentioning

confidence: 99%

“…They examined several different alloys and also studied the effect of HAZ by considering various HAZ locations and widths. Rigo et al (2003) outlined a sensitivity study on the ultimate strength of aluminium panel based on a benchmark study carried out for the Committee III.1 'Ultimate Strength' of ISSC'2003. The extrusion cross-section, same as in Aalberg et al's experimental investigation, was selected and several finite element codes were compared to study the compression collapse and a good agreement observed between the results.…”

Section: Introductionmentioning

confidence: 99%

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The effects of geometrical imperfections on the ultimate strength of aluminium stiffened plates subject to combined uniaxial compression and lateral pressure

Khedmati

Pedram

Rigo

2012

Ships and Offshore Structures

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The present study aims at determining the effects of the geometrical imperfections on the ultimate strength and load-carrying capacity of aluminium stiffened plates under combined axial compression and lateral pressure. The finite element models proposed by the Committee III. 1 'Ultimate Strength' of ISSC'2003 are used in the present investigation. Initial imperfections as proposed by ISSC committee as well as those recommended by Ship Structure Committee are considered in the analyses. Models are tested using non-linear finite element elasticplastic analyses. Aluminium alloy AA6082-T6 is selected as the material for the models. The studied models are triple-span panels stiffened by either extruded or non-extruded angle-bar profiles. Different arrangements of heat-affected zone (HAZ) are considered. The main outcomes of this study show the need for a subtle assessment of the real shapes of the initial deformations. The way they affect the ultimate strength of models is clarified through finite element analyses.

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Section: Figurementioning

confidence: 99%

Section: Figurementioning

confidence: 99%

Section: Figurementioning

confidence: 99%

Section: Boundary and Loading Conditionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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