The buckling of corrugated circular cylinders under uniform external pressure

Ross, Carl T.F.; Humphries, M.

doi:10.1016/0263-8231(93)90006-v

Cited by 16 publications

(8 citation statements)

References 4 publications

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“…Refs. [37][38][39][40][41][42][43][44][45][46][47][48][49][50][51][52][53][54][55][56]. Figure 2(a) shows an open-ended pressure chamber, whereby the end-closure is designed to be directly attached to the specimen.…”

Section: Conventional External Pressure Testing Methodsmentioning

confidence: 99%

A Review of External Pressure Testing Techniques for Shells including a Novel Volume-Control Method

MacKay

Keulen

2009

Exp Mech

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A review of conventional testing methods for applying external hydrostatic pressure to buckling-critical shells is presented. A new "volume-control" pressure testing method, aimed at preventing catastrophic specimen failures and improving control of specimen deformation near the critical load, is also introduced. The implementation of conventional and volume-control systems in an experimental program involving the destructive pressure testing of ring-stiffened cylinders is described. The volume control method was found to improve control of the specimen deformations, especially near the critical load, and catastrophic failures observed while using a conventional setup were avoided. The quasi-static tracking of postcollapse load-deformation relationships for snap-through buckling behaviour was possible while using a volumecontrol system, but precise control of dynamic shell deformations during buckling was not achieved for specimens failing with large buckling lobes. Expressions for estimating the available control over specimen deformations for pressure testing systems are presented.

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Section: Conventional External Pressure Testing Methodsmentioning

confidence: 99%

A Review of External Pressure Testing Techniques for Shells including a Novel Volume-Control Method

MacKay

Keulen

2009

Exp Mech

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“…Ross (1987), Yuan et al (1991), Ross and Palmer (1993), Ross and Humphries (1993) and Ross and Heigl (1995). Theoretical studies have shown that swedge-stiffened shells are more efficient than those strengthened traditionally using ring stiffeners (Ross, 1987).…”

Section: Introductionmentioning

confidence: 95%

Experiments on corrugated thin cylindrical shells under uniform external pressure

et al. 2015

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“…Another alternative to increase the shell buckling strength involves the use of corrugated shells, as presented by Ross and Humphries [34] and Zhang et al [35]. In these studies, the authors analyzed several corrugated cylindrical shells subjected to uniform external hydrostatic pressure and compared the experimentally obtained results with finite element results.…”

Section: Introductionmentioning

confidence: 99%

Buckling Analysis of an AUV Pressure Vessel with Sliding Stiffeners

Freitas¹,

Álvarez

Ramos

et al. 2020

JMSE

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The structure of an autonomous underwater vehicle (AUV), usually composed of a cylindrical shell, may be exposed to high hydrostatic pressures where buckling collapse occurs before yield stress failure. In conventional submarines, welded stiffeners increase the buckling resistance, however, in small AUVs, they reduce the inner space and cause residual stresses. This work presents an innovative concept for the structural design of an AUV, proposing the use of sliding stiffeners that are part of the structure used to accommodate the electronics inside it. Since the sliding stiffeners are not welded to the shell, there are no residual stresses due to welding, the AUV fabrication process is simplified, enabling a reduction of the manufacturing cost, and the inner space is available to accommodate the equipment needed for the AUV mission. Moreover, they provide a higher buckling resistance when compared to that of an unstiffened cylindrical shell. A comparative analysis of the critical buckling loads for different shell designs was carried out considering the following: (i) the unstiffened shell, (ii) the shell with ring stiffeners, and (iii) the shell with sliding stiffeners. Results evidenced that major advantages were obtained by using the latter alternative against buckling.

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The buckling of corrugated circular cylinders under uniform external pressure

Cited by 16 publications

References 4 publications

A Review of External Pressure Testing Techniques for Shells including a Novel Volume-Control Method

A Review of External Pressure Testing Techniques for Shells including a Novel Volume-Control Method

Experiments on corrugated thin cylindrical shells under uniform external pressure

Buckling Analysis of an AUV Pressure Vessel with Sliding Stiffeners

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