Numerical modelling of square tubular steel beams subjected to transverse blast loads

Jama, Hussein Haji; Bambach, Michael Richard; Nurick, G.N.; Grzebieta, Raphael; Zhao, Xiao Ling

doi:10.1016/j.tws.2009.06.004

Cited by 75 publications

(28 citation statements)

References 36 publications

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“…Recently three commercial numerical codes, namely, ABAQUS, LS-DYNA and AUTODYN have been used extensively in the modeling of blast-loaded structures [15][16][17]. Numerous attempts have been made using commercially available software packages to model the large inelastic deformation or complete failure of the structure subjected to blast loading [18][19][20][21][22]. These simulations have compared well with the experiments.…”

Section: Introductionmentioning

confidence: 99%

Experimental and numerical studies on the deformation and tearing of X70 pipelines subjected to localized blast loading

Song

Long

et al. 2016

Thin-Walled Structures

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Section: Introductionmentioning

confidence: 99%

Experimental and numerical studies on the deformation and tearing of X70 pipelines subjected to localized blast loading

Song

Long

et al. 2016

Thin-Walled Structures

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“…The proposed model can describe the temporal variation of local and global deformations when the strain rate effects are taken into account during both phases of deformation. Such model has been validated using the results published by Jama et al [11,12].…”

Section: Introductionmentioning

confidence: 99%

Numerical simulations of response of tubular steel beams to close-range explosions

Ngo

Mohotti

Remennikov

et al. 2015

Journal of Constructional Steel Research

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Numerical simulations of response of tubular steel beams to close-range explosions AbstractA numerical study of hollow and concrete-filled square tubular steel columns subjected to near-field detonations has been undertaken and validated through the experimental results. The experiments used concrete-filled and hollow square tubular columns (100 x 5 mm SHS Grade C350) made out of cold-formed structural steel hollow sections (SHS) that were simply supported at both ends. High explosives TNT charges were placed above the top surface of the column at two different scaled standoff distances of 0.12 m/kg1/3 and 0.15 m/kg1/3. Failure patterns and permanent mid-span deformations were recorded and compared with the numerical analysis results. Arbitrary Lagrangian-Eulerian (ALE) formulations coupled with fluid-structure interaction (FSI) algorithms that are available in the advanced finite element code LS-DYNA were used in the numerical study. A detailed description of the numerical technique adopted in the study is presented. The models were validated with the experimental results and were used to obtain the failure pattern, permanent plastic deformation, pressure and impulse time histories, stress distribution, and energy absorption of the different configurations of the columns. The performance of hollow and concrete-filled SHS tubes for blast load mitigation was assessed and discussed. AbstractA numerical study of hollow and concrete-filled square tubular steel columns subjected to

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“…The simplest numerical approximations of blast loads are triangular, rectangular, or bilinear pressure-time curves, more often used in the past but also at present (Biggs (1964), Jama et al (2009), Krauthammer and Ku (1996), Louca et al (1996), Tavakoli and Kiakojouri (2014)), and in analytical methods (Biggs (1964), Jones (1997), Smith and Hetherington (1994)). More precise, build-in numerical representation of blast loads appeared when Randers-Pehrson and Bannister (1997) implemented previous work of Kingery and Bulmash (1984) (ConWep blast model Bruce and Jon (1991)) in LS-DYNA (LSTC (2013a, b)).…”

Section: Introductionmentioning

confidence: 99%

Minimum mesh design criteria for blast wave development and structural response - MMALE method

Trajkovski

Kunc

Perenda

et al. 2014

Lat. Am. j. solids struct.

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The Multi Material Arbitrary Lagrange Euler (MMALE) method is widely used method for numerical investigation of structural response under blast loading. However the method is very demanding for use at the other hand. In this paper are presented the results of the detailed numerical investigation in order to simplify some decisions contributing to the accuracy and efficiency of this model. The influence of mesh properties (particularly mesh size, its biasing and distance of the boundary (DoB) conditions from the deforming structure) on blast wave loading parameters and structural response is investigated in detail and based on the results minimum mesh design criteria is proposed. The results obtained are presented as a function of the scaled distance and additionally related to the radius of the charge. Validation studies were also done successfully.

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Numerical modelling of square tubular steel beams subjected to transverse blast loads

Cited by 75 publications

References 36 publications

Experimental and numerical studies on the deformation and tearing of X70 pipelines subjected to localized blast loading

Experimental and numerical studies on the deformation and tearing of X70 pipelines subjected to localized blast loading

Numerical simulations of response of tubular steel beams to close-range explosions

Minimum mesh design criteria for blast wave development and structural response - MMALE method

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