Dynamic Response of Cylindrical Shells to Moving Pressure Load

Reismann, Herbert

doi:10.21236/ad0691784

Cited by 13 publications

(22 citation statements)

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“…That physical situation can be modelled as a beam on an elastic foundation with a moving load, which results in a governing equation that is identical to the simplest thin-cylinder model of a shock or detonation wave in a tube. The first comprehensive theories for predicting the elastic response of a tube to a moving load were developed by Tang [13] and Reismann [14]. Tang [13] presented a model to predict the response of a thin shell to internal shock loading.…”

Section: Structural Responsementioning

confidence: 99%

“…He also presented transient results for a finite length shell using the method of characteristics. Reismann [14] developed a model that includes the effect of prestress on the structural response and gave an elegant explanation of how the resonant coupling between a moving load and the flexural waves comes about. Simkins [9][10][11] extended the analysis to thick-wall tubes and first applied these ideas to explain observations of large strain amplitudes in gun tubes.…”

Section: Structural Responsementioning

confidence: 99%

“…Tang's model is based on a thin-shell approximation and includes the effects of rotary inertia and transverse shear deformation DETONATION LOADING IN TUBES but neglects the effect of axial prestress. For a detailed discussion on the influence of the axial prestress, see reference [14].…”

Section: Analytical ''Steady State'' Modelmentioning

confidence: 99%

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Linear Elastic Response of Tubes to Internal Detonation Loading

Beltman

Shepherd

2002

Journal of Sound and Vibration

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This paper deals with the structural response of a tube to an internal gaseous detonation. An internal detonation produces a pressure load that propagates down the tube. Because the speed of the gaseous detonation can be comparable to the flexural wave group speed, excitation of flexural waves in the tube wall must be considered. Flexural waves can result in much higher strains and stresses than static loading with the same loading pressures. Experiments and numerical simulations were used to determine the structural response. In the experiments, a detonation tube was instrumented with a number of strain gages. A series of experiments was carried out under different conditions. Strains were measured that exceeded the equivalent static strain by up to a factor of 3Á9: Special attention was paid to the influence of the detonation speed, reflection and interference of structural waves at flanges and also at the tube end, the linearity of the response, the transient development of the deflection profile, and the influence of detonation cell size. Analytical models and finite element models were used to interpret the observations and to make quantitative predictions of the peak strain. #

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Section: Structural Responsementioning

confidence: 99%

Section: Structural Responsementioning

confidence: 99%

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Linear Elastic Response of Tubes to Internal Detonation Loading

Beltman

Shepherd

2002

Journal of Sound and Vibration

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“…There are also recent computational efforts such as the one by Zhuang and O'Donoghue (2000) to simulate the fluid-structure-fracture interaction of a bursting pipe under initially static loading. The structural response of shells to shock or detonation loading was studied by researchers such as Tang (1965), Reismann (1965), de Malherbe et al (1966, Brossard and Renard (1979), Simkins (1987), and Thomas (2002), but these were done on tubes that did not have deliberate flaws and, thus, did not involve a fracture mechanics approach. The current study provides experimental data that connect fracture mechanics and cylindrical shell dynamics.…”

Section: Introductionmentioning

confidence: 99%

Fracture response of externally flawed aluminum cylindrical shells under internal gaseous detonation loading

Chao

Shepherd

2005

Int J Fract

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International Journal of Fracture (2005) 134:59-90Abstract. Experiments were performed to observe the fracture behavior of thin-wall and initiallyflawed aluminum tubes to internal gaseous detonation loading. The load can be characterized as a propagating pressure jump with speed of 2.4 km/s and magnitude ranging from 2 MPa to 6 MPa, followed by an expansion wave. Flaws were machined as external axial surface notches. Cracks ran both in the upstream and downstream directions as the hoop stress opened up the notch. Different kinds of crack propagation behavior were observed for various loading amplitudes and flaw sizes. For low-amplitude loading and short flaws, cracks tend to run in a helical fashion, whereas for highamplitude loading and long flaws, cracks tend to bifurcate in addition to running helically. Unless the cracks branched and traveled far enough to meet, resulting in a split tube, they were always arrested. Strain gages were used to monitor the hoop strains at several places on the tubes' external surface. Far from the notch, tensile vibrations were measured with frequencies matching those predicted by the steady-state Tang (1965, Proceedings of the American Society of Civil Engineers 5, 97-122) and Simkins (1987, Technical Report ARCCB-TB-87008, US Army Armament Research, Development and Engineering Center, Watervliet, N.Y. 12189-4050) models. Near the notch, compressive strains were recorded as a result of the bulging at the notch. Features in the strain signals corresponding to different fracture events are analyzed.

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“…For this case a variety of analytical, experimental, and FE solutions is available for the structural response (Tang, 1965;Reismann, 1965;Beltman et al, 1999;Beltman & Shepherd, 2002;Mirzaei et al, 2005Mirzaei et al, ,2006aMirzaei, 2008b). An interesting application for this type of moving pressure is the pulse detonation engine (PDE) which is currently regarded as a promising candidate for providing very efficient propulsion systems for both subsonic and supersonic aviation.…”

Section: Low-pressure Moving Frontmentioning

confidence: 99%

Finite Element Analysis of Deformation and Fracture of Cylindrical Tubes under Internal Moving Pressures

Mirzaei¹

2010

Finite Element Analysis

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Dynamic Response of Cylindrical Shells to Moving Pressure Load

Cited by 13 publications

References 0 publications

Linear Elastic Response of Tubes to Internal Detonation Loading

Linear Elastic Response of Tubes to Internal Detonation Loading

Fracture response of externally flawed aluminum cylindrical shells under internal gaseous detonation loading

Finite Element Analysis of Deformation and Fracture of Cylindrical Tubes under Internal Moving Pressures

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