Further study on strain growth in spherical containment vessels subjected to internal blast loading

Dong, Qi; Li, Q.M.; Zheng, Jinyang

doi:10.1016/j.ijimpeng.2009.09.001

Cited by 36 publications

(17 citation statements)

References 25 publications

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“…Furthermore, the composite vibration modes, which may be excited by the dynamic unstable vibration (Dong et al 2009), are not considered in the present study, and thus, the dynamic response of the spherical shell is a pure breathing mode vibration. To simplify the analysis, viscous damping is not considered in the model.…”

Section: A C C E P T E D Article In Pressmentioning

confidence: 99%

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Interactive mechanisms between the internal blast loading and the dynamic elastic response of spherical containment vessels

Dong

Zheng

2010

International Journal of Impact Engineering

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Interactive mechanisms between the internal blast loading and the dynamic elastic response of spherical containment vessels. International Journal of Impact Engineering, Elsevier, 2010, 37 (4) This is a PDF file of an unedited manuscript that has been accepted for publication. As a service to our customers we are providing this early version of the manuscript. The manuscript will undergo copyediting, typesetting, and review of the resulting proof before it is published in its final form. Please note that during the production process errors may be discovered which could affect the content, and all legal disclaimers that apply to the journal pertain. M A N U S C R I P T A C C E P T E D ARTICLE IN PRESS Abstract:The interactive mechanisms between internal blast loading and dynamic elastic response of spherical containment vessels are studied in this paper. The blast loading history in containment vessels can be divided into three periods, i.e. the primary-shock period, the shock-reflection period and the pressure-oscillation period. It is shown that the initial response of the containment vessel depends on both the impulse and the shape of the primary-shock depending on the ratio of the loading period to the breathing mode period. However, during the shock-reflection period, the response of the containment vessel can be coupled with the reflected shock waves in the vessel, especially when the dominant frequency of reflected shock waves is close to the breathing mode frequency of the vessel. During the pressure-oscillation period, the dynamic loading is mainly the oscillation of the internal pressure due to the oscillatory volume change of the vessel, which couples dissipatedly with the vibration of the vessel leading to reduced vibration amplitudes. The effects of the influential non-dimensional parameters on the resonant interaction in shock-reflection period are discussed, based on which guidelines are recommended for avoiding the strain growth in the shock-reflection period in the design of spherical containment vessels.

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Section: A C C E P T E D Article In Pressmentioning

confidence: 99%

“…Buzukov 1980). Other possible causes of strain growth in a spherical shell have been discussed in Duffey and Romero(2003) and Dong et al(2009). Numerical analyses also showed that the impulse of the reflected shock waves may reach 50% of the primary impulse (Zhdan 1981), which could enhance M A N U S C R I P T…”

Section: Introductionmentioning

confidence: 97%

Interactive mechanisms between the internal blast loading and the dynamic elastic response of spherical containment vessels

Dong

Zheng

2010

International Journal of Impact Engineering

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“…Compared to the in-plane response of a cylindrical shell which corresponds a plane-strain ring in Li et al [14], the response of a finite-length cylindrical shell with different boundary conditions in the current study is more complicated with the consideration of out-plane response. The material properties and structural dimensions of the cylindrical shell studied in the paper are listed in Tables 1 and 2, respectively.…”

Section: Introductionmentioning

confidence: 90%

“…It has recently been realized that the coupling between the breathing and bending modes, which ASME Journal of Pressure Vessel Technology 4 are excited by the dynamic unstable vibration, is another cause for strain growth of rings (or the in-plane response of cylindrical shells) [14] and spherical shells [15]. However, these conclusions cannot be directly extended to a finite-length cylindrical vessel which is the mostly used type of explosion containment vessels in practice.…”

Section: Introductionmentioning

confidence: 99%

Strain Growth in a Finite-Length Cylindrical Shell Under Internal Pressure Pulse

Dong

Zheng

2017

Journal of Pressure Vessel Technology

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“…Based on the achievements of Kambouchev's research, Vaziri and Hutchinson [10] studied the role of fluid-structure interaction in the design and assessment of sandwich plates subject to shocks. Dong et al [11,12] studied the cause of strain growth in explosive vessel based on the dynamic elastic buckling theory. However, the vibration spectrum analysis of the cylinder shell in the actual operation process is relatively scarce.…”

Section: Introductionmentioning

confidence: 99%

Vibration Characteristics Analysis of Composite Double‐Layer Explosive Vessel Shell Subjected to Explosion Loading

Wang

Gong

et al. 2018

Shock and Vibration

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Explosive vessels are vulnerable to shock wave impacts during operation processing. It is necessary to explore the vessel's vibration characteristics. In this paper, acceleration sensors were adopted to collect vibration acceleration signals at the inner and outer surfaces of the composite double-layer explosive vessel under explosive loading. Then, the effective vibration velocity curve can be obtained by fitting polynomials to eliminate the acceleration integral trend. Thereafter, Hilbert-Huang Transform (HHT) was applied to analyze the time-frequency distribution of vibration velocity signals. The results showed that the special "steel plate-buffer interlayer-steel plate" structure can effectively attenuate the explosion vibration effect, and the frequency distribution range of vibration signal at the inner surface was wider than that at the outer surface, and furthermore the main vibration frequency was close to the natural frequency at the inner surface. Meanwhile, vibration amplitude and the main vibration frequency decreased obviously compared with the outer surface, and the vibration time of 0-200 Hz low-order frequency was shortened. The above researches closely linked the energy distribution with frequency of vibration signals and provided valuable reference for safer protection and vibration reduction design of explosive vessel.

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Further study on strain growth in spherical containment vessels subjected to internal blast loading

Cited by 36 publications

References 25 publications

Interactive mechanisms between the internal blast loading and the dynamic elastic response of spherical containment vessels

Interactive mechanisms between the internal blast loading and the dynamic elastic response of spherical containment vessels

Strain Growth in a Finite-Length Cylindrical Shell Under Internal Pressure Pulse

Vibration Characteristics Analysis of Composite Double‐Layer Explosive Vessel Shell Subjected to Explosion Loading

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