Dynamic energy absorption and perforation of ductile structures

Jones, Norman

doi:10.1016/j.ijpvp.2010.07.004

Cited by 18 publications

(10 citation statements)

References 40 publications

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“…Some literatures [2][3][4][5][6][7][8][9][10][11] have addressed either analytical or numerical solutions to the impact resistance of tubular structure based on the experimental, analytical or numerical investigations. The research findings illustrate that some factors including the shape of striker, the impact position and the boundary conditions have significant effects on the impact resistance of tubular structure.…”

Section: A Simplified Calculation Methods Of Impact Resistancementioning

confidence: 99%

“…[7]), Chen and Shen [8], Bambach et al [9] and Jones et al [10,11] performed some experimental and analytical studies on the dynamic behaviours of steel tubular members under impact loading. The literatures [2][3][4][5][6][7][8][9][10][11] focused mainly on the effects of geometric parameters, loading condition and boundary condition on the dynamic loads, deformational and energy-absorption behaviors and failure mechanism of steel tubular members. Based on the above experimental and numerical analyses, some simple formulas were proposed to determine the ultimate load-bearing capacity and divide the local and global deformations or deformational energies.…”

Section: Introductionmentioning

confidence: 99%

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Numerical studies on dynamic behavior of tubular T-joint subjected to impact loading

Huo

Chao

et al. 2014

International Journal of Impact Engineering

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Abstract:Joints play an important role in resisting impact loading in Tubular structures. In this paper, a finite element model validated by experimental results is developed to numerically study the failure modes and buckling mechanism of tubular T-joint impacted by a drop hammer with the initial velocity of 7-10 m/s. The resistant mechanism is investigated based on the dynamic responses of the joints under impact loading. Strain, displacement and the failure modes of the T-joints are also predicted. Global and local deformations of the tubular joints are distinguished using an equal area axis method, which helps to discover the buckling mechanism of the joints. Using the yield line theory, , an equivalent impact force estimation method is also proposed based on the impact load versus displacement relationship. The numerical analysis and the simplified method provide a basis for impact resistance evaluation and progressive collapse mitigation of steel tubular structures in design practice in the future.

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Section: A Simplified Calculation Methods Of Impact Resistancementioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Numerical studies on dynamic behavior of tubular T-joint subjected to impact loading

Huo

Chao

et al. 2014

International Journal of Impact Engineering

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“…The Johnson-Cook or Cowper-Symonds relationships can be used in this regard (Eq. 4-6) (Jones, 2010a).…”

Section: Strain Ratementioning

confidence: 99%

Experimental and numerical investigation of lattice-walled cylindrical shell under low axial impact velocities

Hatami

Nouri

2015

Lat. Am. j. solids struct.

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This research was an experimental and numerical investigation of the cylindrical expanded Sheets under impact loading. Two types of absorbers with different cell angles were examined (i.e.  =0 and  =90). The experiments were performed using the drop hammer setup, and the numerical simulations were conducted by ABAQUS. In this study, the type of collapse, force-displacement diagrams, the crushing length, and the absorbed energy were investigated. The experimental and numerical results were compared, and it was observed that they were in good agreement. Results showed that the absorbers with the cell angle of α=0 had a symmetric collapse and a high energy absorption capacity. Also, various heights of fall were considered for the impact mass to examine the type of collapse in the models. The crushing amounts of the models were also compared in different heights. Multi-walled expanded metal tubes were studied, and the effect of being multi-walled in collapse was examined.Keywords Expanded metal energy absorbers; energy absorption capacity; dynamic axial loading; effect of impact force; finite element.Experimental and numerical investigation of lattice-walled cylindrical shell under low axial impact velocities Nomenclature A the cross section and yield stress at Eq.7

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“…They proposed a rigid-plastic analytical formulation to examine the dynamic response of tubular members subjected to lateral impact loadings with various boundary conditions and different load distributions. Zeinoddini et al [6][7][8][9][10][11], Chen and Shen [12], Bambach et al [13] and Jones et al [14,15] performed a series of experimental and analytical investigation on the dynamic behaviour of steel tubular members under impact loading. Based on the experimental and numerical studies, the effect of geometric parameters, loading condition and boundary condition on deformation patterns, energy dissipation and failure mechanism of steel tubular members was also indentified.…”

Section: Introductionmentioning

confidence: 99%

Experimental study on tubular K-joints under impact loadings

Huo

et al. 2015

Journal of Constructional Steel Research

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Dynamic energy absorption and perforation of ductile structures

Cited by 18 publications

References 40 publications

Numerical studies on dynamic behavior of tubular T-joint subjected to impact loading

Numerical studies on dynamic behavior of tubular T-joint subjected to impact loading

Experimental and numerical investigation of lattice-walled cylindrical shell under low axial impact velocities

Experimental study on tubular K-joints under impact loadings

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