Scaling of the deformation histories for clamped circular plates subjected to blast loading by buried charges

Zhao, Xing; Tiwari, Vikrant; Sutton, Michael A.; Deng, Xiaomin; Fourney, W.L.; Leiste, U.

doi:10.1016/j.ijimpeng.2012.10.016

Cited by 26 publications

(11 citation statements)

References 28 publications

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“…Whilst this information may enable researchers to develop relationships between basic parameters, it is often more desirable for validation of numerical modelling approaches to have a more detailed description of the transient displacement profile of the plate. Digital image correlation (DIC) was first introduced in 1983 [28] and has recently been used to more accurately study fullfield transient deformations of blast loaded plates [29][30][31][32][33][34][35][36][37][38][39][40][41][42].…”

Section: Literature Reviewmentioning

confidence: 99%

Experimental Measurement of Specific Impulse Distribution and Transient Deformation of Plates Subjected to Near-Field Explosive Blasts

et al. 2018

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The shock wave generated from a high explosive detonation can cause significant damage to any objects that it encounters, particularly those objects located close to the source of the explosion. Understanding blast wave development and accurately quantifying its effect on structural systems remains a considerable challenge to the scientific community. This paper presents a comprehensive experimental study into the loading acting on, and subsequent deformation of, targets subjected to nearfield explosive detonations. Two experimental test series were conducted at the University of Sheffield (UoS), UK, and the University of Cape Town (UCT), South Africa, where blast load distributions using Hopkinson pressure bars and dynamic target deflections using digital image correlation were measured respectively. It is shown through conservation of momentum and Hopkinson-Cranz scaling that initial plate velocity profiles are directly proportional to the imparted impulse distribution, and that spatial variations in loading as a result of surface instabilities in the expanding detonation product cloud are significant enough to influence the transient displacement profile of a blast loaded plate.

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Section: Literature Reviewmentioning

confidence: 99%

Experimental Measurement of Specific Impulse Distribution and Transient Deformation of Plates Subjected to Near-Field Explosive Blasts

et al. 2018

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“…The Buckingham p-theorem was used to generate a complete set of dimensionless p-terms, with equality to those obtained under same experimental conditions. Table 1 lists the independent variables and their dimensions for the plate deformation caused by the detonation of an explosive in the air [28]. The input variable consists of four principal components: explosive parameters, air parameters, plate parameters and blasting height (BH).…”

Section: Dimensional Analysis Of Deformations Of the Plates Subjectedmentioning

confidence: 99%

Preliminary Similarity Analysis on the Deformation Dynamic Response of Thin Plates Subjected to Blast and Impact Loadings

Gao

Dong

Xiao

et al. 2018

Propellants Explo Pyrotec

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The similarity and conditions for the similarity of deformation dynamic response of thin circular plates subjected to blast and impact loadings under certain conditions were studied by experimental tests and numerical simulation using air explosion and drop hammer impact loadings. The results revealed that the final deformed shapes of thin plates subjected to the two dynamic loadings are similar with less than 2 % difference in deflection and less than 8 % difference in deformed volume. The deformation similarity of plates subjected to blast and impact loadings can be achieved as the shock dimensionless number and the hammer shape satisfying given features. The deformation responses of the thin plates satisfying the constraints to blast and impact loadings are opposite. The key parameters of the blast and impact loading systems were obtained by the dimensional analysis using Buckingham π theorem. Based on these results, a similarity scheme was proposed. The numerical simulation was verified with the experimental results. In all, a novel method was established to study the similitude of analogous systems, which could be extended to other similar physical problems.

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“…The experimental data could be used to both validate the reliability and the accuracy of the available computational methods and describe the loading and the structural response (Avachat et al, 2014;Zhao et al, 2013). Aune (2016) obtained the response characteristics of thin aluminum and steel plates subjected to air blast loading through the 3D DIC synchronized analyses.…”

Section: Experimental and Numerical Investigation Of The Dynamic Behamentioning

confidence: 99%

Experimental and Numerical Investigation of the Dynamic Behavior of Clamped Thin Panel Subjected to Underwater Impulsive Loading

Ren

Zhou

Tian

et al. 2017

Lat. Am. j. solids struct.

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Scaling of the deformation histories for clamped circular plates subjected to blast loading by buried charges

Cited by 26 publications

References 28 publications

Experimental Measurement of Specific Impulse Distribution and Transient Deformation of Plates Subjected to Near-Field Explosive Blasts

Experimental Measurement of Specific Impulse Distribution and Transient Deformation of Plates Subjected to Near-Field Explosive Blasts

Preliminary Similarity Analysis on the Deformation Dynamic Response of Thin Plates Subjected to Blast and Impact Loadings

Experimental and Numerical Investigation of the Dynamic Behavior of Clamped Thin Panel Subjected to Underwater Impulsive Loading

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