Stress Concentration in an Axially Compressed Cylindrical Shell of Medium Thickness with an Elliptic Opening

Zirka, A. I.; Chernopiskii, D. I.

doi:10.1023/b:inam.0000015605.53515.4a

Cited by 8 publications

(5 citation statements)

References 3 publications

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“…al [13], that further investigated the effects of various factors on the stress concentrations around a cutout in a cylindrical shell. Similarly, experimental investigations have been conducted by Pierce and Chou [14], Bull [15], and Zirka and Chernopiskii [16] and numerical studies have been conducted by Key [17], Lindberg and Olson [18] and Liang et.al [20]. In 1964 and 1972, respectively, Hicks [21] and Ebner and Jung [22] summarized the resuls obtained from several of these previous studies and provided extensive list of references related to this problem.…”

Section: Introductionmentioning

confidence: 99%

An Improved Finite Element Model to Study Stress Concentration Around an Elliptical Cutout in Pressure Vessel: Validation : Part-I

Kumar,

Ramamurthy,

Rao

et al. 2023

joast

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A finite element model to the analysis of thin shell structures with cutouts/inclusions is developed based on shear deformation theory. An eight-noded isoparametric shell element is considered with six degrees of freedom at each node. A convergence study is under taken to arrive at a suitable finite element mesh. The loading conditions include uniform tension, uniform pressure. The finite element results presented in this work are shown to be in good agreement with available analytical and experimental data and the direction for future work is also given.

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Section: Introductionmentioning

confidence: 99%

An Improved Finite Element Model to Study Stress Concentration Around an Elliptical Cutout in Pressure Vessel: Validation : Part-I

Kumar,

Ramamurthy,

Rao

et al. 2023

joast

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“…Several studies examined the stress-strain distribution in different type of shells with curvilinear openings. Guz et al [10], Zirka et al [11] and Alsalah. et al [12] analyzed the effect on the opening of a cylindrical shell by conducting stress-concentration tests.…”

Section: Introductionmentioning

confidence: 99%

Novel Procedures for Sustainable Design in Structural Rehabilitation on Oversized Metal Structures

Mocanu

Rece

Burlacu

et al. 2022

Metals

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This article includes several studies and advanced research carried out on the subject of large KANGUR-type port cranes, subjected to regular or interventional maintenance work; besides the beneficial effects for which they were intended, some undesirable effects were detected in terms of affecting safety in exploitation. The purpose of this paper is to identify the risk factors and to offer sustainable solutions for increasing operational safety and service life for the respective equipment, as well as for other similar fields of activity, including oversized structures. Following the theoretical studies and the experimental research carried out in situ that confirmed the validity of the theoretical models used, the article in conclusion provides specific and sustainable solutions as well as new methods of assessment, which combine the positive elements of the usual solutions, but in parallel, allow the elimination of the negative side effects that may occur in time. Hence, the article’s novelties also consist of a new approach to achieve structural interventions, resulting in the increase in the service life, and in parallel with that, the safety in operation of the respective equipment.

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“…Various studies on these structural defects have been conducted. Guz et al [8], Zirka et al [9], Golling [10], and Reyno et al [11] conducted stress concentration tests of cylindrical shells considering the opening. Tennyson [12], Starnes [13], Jullien et al [14], Shariati et al [15,16], Ghazijahani et al [17], and Alsalah et al [18] analyzed the effect on the opening of a cylindrical shell under axial load but did not deal with the effect of reinforcement using a surrounding stiffener.…”

Section: Introductionmentioning

confidence: 99%

Structural Behavior of Large-Diameter Cylindrical Shell with Stiffened Opening

Kang

Won

Park

et al. 2021

Metals

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In recent years, there has been a growing demand for renewable energy that is free of power generation by products to address the global climate and resource limitation crises. Wind power generation is maximizing efficiency through constant research and development, and as the use of large capacity turbines increases, the scale of supporting structure also increases. The structural maintenance of hollow towers, the supporting structure of wind turbines, requires the installation of an opening through which workers can access the tower to check corrosion, cracks, and damage to the tower body. However, these access points can affect the buckling strength of the tower structures due to section loss. In this study, the effects of the opening on the structural stability and ultimate strength of a large diameter cylindrical shell, which could be used as a wind turbine supporting tower structure, were studied through elastic buckling and nonlinear analyses. Based on the analytical results, the effects of the thickness of a collar stiffener around the opening on the structure’s ultimate strength were investigated. The results were compared to the design criteria, and through regression analysis, an effective equation to determine the collar stiffener’s thickness for large diameter cylindrical shells was proposed based on an opening that satisfied the design strength criteria.

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Stress Concentration in an Axially Compressed Cylindrical Shell of Medium Thickness with an Elliptic Opening

Cited by 8 publications

References 3 publications

An Improved Finite Element Model to Study Stress Concentration Around an Elliptical Cutout in Pressure Vessel: Validation : Part-I

An Improved Finite Element Model to Study Stress Concentration Around an Elliptical Cutout in Pressure Vessel: Validation : Part-I

Novel Procedures for Sustainable Design in Structural Rehabilitation on Oversized Metal Structures

Structural Behavior of Large-Diameter Cylindrical Shell with Stiffened Opening

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