Numerical design prediction of the capacity of plates in biaxial in-plane compression

Valsgard, S

doi:10.1016/0045-7949(80)90175-3

Cited by 33 publications

(7 citation statements)

References 5 publications

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“…The ultimate strength of a continuous plate under transverse thrust alone is formulated assuming the stress distribution shown in Fig. 17 [21]. Here, the ultimate strength of the end parts, s s ue ; is approximated by that of a continuous square plate, while the ultimate strength of the middle part, s s um ; by that of a both-ends simply supported beam of length b and unit width.…”

Section: Estimation Of Ultimate Strengthmentioning

confidence: 99%

Estimation of ultimate strength of continuous stiffened panel under combined transverse thrust and lateral pressure Part 1: Continuous plate

Fujikubo

Yao²,

Khedmati³

et al. 2005

Marine Structures

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A simplified method to estimate the ultimate strength of a continuous plate, typical in ship bottom plating, subjected to combined transverse thrust and lateral pressure is developed. A series of elastic/ elastoplastic large deflection finite element analysis (FEA) of a continuous plate supported along the lines of longitudinal stiffeners and transverse frames is performed. Attention is focused on the effect of a continuity of plating on its buckling and ultimate strengths, while the previous studies are mainly concerned with an isolated plate. Based on the FEA results, a set of formulae has been derived for the estimation of the ultimate strength of a continuous plate under combined transverse thrust and lateral pressure. An increase of elastic buckling strength and a change in the collapse mode from a simply supported mode to a clamped mode are considered as an effect of a continuity of plating. It has been proven from a comparison with FEA that the proposed formulae give very accurate predictions of the ultimate strength. r

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Section: Estimation Of Ultimate Strengthmentioning

confidence: 99%

Estimation of ultimate strength of continuous stiffened panel under combined transverse thrust and lateral pressure Part 1: Continuous plate

Fujikubo

Yao²,

Khedmati³

et al. 2005

Marine Structures

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“…Initial imperfections cause reductions in the strength and stiffness of steel plates and are thus considered in the post-local buckling analysis. Different magnitudes of geometric imperfections have been used in the nonlinear analysis of steel plates (Williams and Walker 1975;Valsgard 1980;Dier and Dowling 1984;Davidson et al 1989).…”

Section: Initial Imperfectionsmentioning

confidence: 99%

“…Little (1977) presented an energy method for the collapse analysis of steel plates with geometric imperfections under in-plane biaxial compression. Nonlinear finite element analysis was utilized by Valsgard (1980) to predict the biaxial strength of steel plates in ship structures. This study suggested that the biaxial strength should be determined on the basis of the proportional load increment approach in a nonlinear analysis.…”

Section: Introductionmentioning

confidence: 99%

Local Buckling of Steel Plates in Double Skin Composite Panels under Biaxial Compression and Shear

Liang

Wright

et al. 2004

J. Struct. Eng.

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Steel plates in double skin composite (DSC) panels are restrained by a concrete core and welded stud shear connectors at discrete positions. Local buckling of steel plates in DSC panels may occur in a unilateral mode between stud shear connectors when subjected to combined states of stresses. This paper studies the local and post-local buckling strength of steel plates in DSC panels under biaxial compression and in-plane shear by using the finite element method. Critical local buckling interaction relationships are presented for steel plates with various boundary conditions that include the shear stiffness effects of stud shear connectors. A geometric and material nonlinear analysis is employed to investigate the postlocal buckling interaction strength of steel plates in biaxial compression and shear. The initial imperfections of steel plates, material yielding and the nonlinear shear-slip behavior of stud shear connectors are considered in the nonlinear analysis. Design models for critical buckling and ultimate strength interactions are proposed for determining the maximum stud spacing and ultimate strength of steel plates in DSC panels.

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“…The ultimate strength fux and fuy of plates under biaxial compression stresses should meet the requirement of the following interaction equation (Valsgard 1980;Frieze et al 1977):…”

Section: Biaxial Compressionmentioning

confidence: 99%

Reliability‐Based Load and Resistance Factor Design (LRFD) Guidelines for Unstiffened Panels of Ship Structures

Assakkaf¹,

Ayyub

Hess³

et al. 2002

Naval Engineers Journal

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The main objective of ship structural design is to ensure safety, functional, and performance requirements of the structural element for target reliability levels and for a specified time period. As this must be accomplished under conditions of uncertainty, probabilistic analyses are necessary in the development of such reliability‐based designs of unstiffened panels for ship structures. The load and resistance factor design (LRFD) format is developed in this paper for unstiffened panels. Partial safety factors are determined to account for the uncertainties in strength and load effects. In developing these factors, Monte Carlo simulation is used to assess the probabilistic characteristics of strength models by generating basic random variables that define the strength and substituting them in these models. The First‐Order Reliability Method (FORM) is used to determine the partial safety factors based on prescribed probabilistic characteristics of load effects. Also, strength factors are computed for a set of load factors to meet a target reliability level.

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Numerical design prediction of the capacity of plates in biaxial in-plane compression

Cited by 33 publications

References 5 publications

Estimation of ultimate strength of continuous stiffened panel under combined transverse thrust and lateral pressure Part 1: Continuous plate

Estimation of ultimate strength of continuous stiffened panel under combined transverse thrust and lateral pressure Part 1: Continuous plate

Local Buckling of Steel Plates in Double Skin Composite Panels under Biaxial Compression and Shear

Reliability‐Based Load and Resistance Factor Design (LRFD) Guidelines for Unstiffened Panels of Ship Structures

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