Approximate method for evaluation of stress-strain relationship for stiffened panel subject to tension, compression and shear employing the finite element approach

Taczała, Maciej

doi:10.1201/9780203874981.ch17

Cited by 2 publications

(2 citation statements)

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“…Approximate procedure is used to determine the stress and strain distribution in damaged stiffened laminates. Taczala (2009) presented an approximate procedure to evaluate stress-strain relationship of stiffened panels subject to varieties of random load combinations with application to ship constructions. The loadings included tensile, compressive and shear loading applied to the panel edge.…”

Section: Hybrid Numerical Proceduresmentioning

confidence: 99%

Recent developments in analysis of deteriorating stiffened panels subjected to static and explosive forces

Bedair¹

2013

Multi Modelg in Mat & Struct

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Purpose -The paper aims to review recent developments for analysis of deteriorating stiffened panels subjected to static and explosive forces. Design/methodology/approach -The first part reviews numerical procedures developed for stiffened panels subjected to explosive forces. The structural idealization, the theoretical basis, and the merits of these methods are discussed. The second part reviews the probabilistic procedures developed for analysis of deteriorating stiffened panels. The third part reviews recent work developed in several finite element modelling philosophies for analysis of stiffened panels. The influence of various parameters affecting the structural performance, such as geometric and material imperfections, corrosion, residual stresses, etc. is discussed. The fourth part reviews hybrid procedures developed to provide approximate solutions for the designers. Numerical procedure is presented using combination of energy formulations and mathematical programming techniques to model the interaction between the box girder components. Findings -Localized damage largely affects the performance of stiffened panels and must be accounted for in the design phase. Little emphasis was given in the published literature to developing simplified analytical models that can be used in practice to compute the residual strength of the stiffened panels under these types of loadings. Furthermore, analytical expressions are required to compute the reduction in the stiffness induced due to the structural or material defects. These expressions must be dependent on the type of damage. It must be noted that some of this damages is localized in nature and must be accounted for by using specialized functions to assess the structural defect accurately. Research work is required in this direction. Practical implications -The paper provides useful resource material for the engineers in practice regarding recent techniques developed to assess damaged stiffened panels subject to static and explosive loadings. The paper reviews work developed over the past 20 years that can be used as a baseline for future developments. Originality/value -Very limited literature dealt with the ultimate strength of damaged stiffened structure under static and explosive forces. No guidelines are available in current design codes to assess the damage in predicting the strength of deteriorating stiffened panels.

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Section: Hybrid Numerical Proceduresmentioning

confidence: 99%

Recent developments in analysis of deteriorating stiffened panels subjected to static and explosive forces

Bedair¹

2013

Multi Modelg in Mat & Struct

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“…Ultimate strength analysis is currently one of the fundamental types of structural assessment considering ship and offshore structures. Nowadays, the most commonly used method is the non-linear finite element method [1]. A static solver is used, including a convergence iterator using the Newton-Raphson methods, including Riks arc-length one.…”

Section: Introductionmentioning

confidence: 99%

Experimental and Numerical Investigations of Ultimate Strength of Imperfect Stiffened Plates of Different Slenderness

Woloszyk

Garbatov

Kowalski

et al. 2020

Polish Maritime Research

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The objective of this study is to analyse the behaviour of compressed stiffened plates of different slenderness using experimental and numerical methods. The presented results are part of a long-term project to investigate the ultimate strength of geometrically imperfect structures subjected to different degradation phenomena, including corrosion degradation and locked cracks. Several specimens were subjected to a uniaxial compressive force, and the most important quantities related to the structural behaviour were captured and analysed. A finite element model, accounting for material and geometrical nonlinearities and initial geometrical imperfections, was developed using the commercial software ANSYS. The residual welding-induced stresses were measured in the middle cross-section for two specimens. The initial imperfection was identified by employing a close-range photogrammetry approach. It was concluded that the numerical analyses, based on the finite element model, predict the ultimate strength of stiffened plates accurately, although some deviations were also observed. The detailed analysis with the indication of possible uncertainty is presented, and several conclusions are derived.

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Approximate method for evaluation of stress-strain relationship for stiffened panel subject to tension, compression and shear employing the finite element approach

Cited by 2 publications

References 1 publication

Recent developments in analysis of deteriorating stiffened panels subjected to static and explosive forces

Recent developments in analysis of deteriorating stiffened panels subjected to static and explosive forces

Experimental and Numerical Investigations of Ultimate Strength of Imperfect Stiffened Plates of Different Slenderness

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