Structural response of monolithic and multi-layered circular metallic plates under repeated uniformly distributed impulsive loading: An experimental study

Ziya-Shamami, M.; Babaei, Hashem; Mostofi, Tohid Mirzababaie; Khodarahmi, Hossein

doi:10.1016/j.tws.2020.107024

Cited by 21 publications

(2 citation statements)

References 35 publications

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“…Many attempts have been made to address the structural damage accumulation induced by multiple or successive explosions, but their focuses have mostly been on the metal structures due to their single material property and strong ductility 6 . Ziya‐Shamami et al 7 conducted a series of experiments to investigate the response and damage accumulation of monolithic and multi‐layered metallic plates under repeated uniform impulsive loads up to five times. The characteristics of blast loads (charge mass, stand‐off distance, and loading number) and targets (layer number, layer thickness, and layer arrangement) were considered.…”

Section: Introductionmentioning

confidence: 99%

Effect of load details of the successive explosions on the blast behaviors of reinforced concrete beams

Xu,

Liu,

Huang

et al. 2023

Structural Design Tall Build

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SummaryThe objective of this study was to study the effect of load details of successive explosions on the blast behaviors of reinforced concrete (RC) beams. First, the effect of the successive loading of two identical explosions was discussed by considering the influences of standoff distance, charge mass on the failure states, and structural responses (displacement and support reaction force). And keeping the total TNT charge mass of 1 kg unchanged, the effect of loading numbers was investigated by loading two 0.5 kg TNT successively and a single 1 kg TNT on RC beams, respectively. Besides, the successive loading of two different explosions was also considered by investigating the effects of loading sequences and the first explosion induced pre‐damage on the ultimate accumulated damage of RC beams. At last, based on the reaction force and displacement responses, a nonlinear relationship between the dynamic residual load‐carrying capacity and the accumulated residual displacement was obtained to assess the damage states of the tested beams. The results show that the local failure range along the beam span direction (length of peeling‐off and length of spallation) caused by the first blast load did not apparently increase when the damaged beams were subjected to another blast load. With the increase in explosion numbers, depth of compressive crushing increases gradually. At the same stand‐off distance (from 0.25 to 0.45 m), due to the damage accumulation effect, successive loading of two 0.5 kg TNT can trigger more severe local failure but smaller accumulated residual deflection to beams than the single loading of a 1 kg TNT. Besides, when two different blast loads are loaded on tested beams, the loading sequence of the larger one first and then the smaller one (1 kg TNT/0.5 kg TNT at h = 0.45 m) can trigger larger damage to beams than the opposite loading sequence (0.5 kg TNT/1 kg TNT at h = 0.45 m). And for the beams subjected to a smaller blast load first and then a larger one, a stiffer behavior may be triggered by the second blast load on the beam after the first loading of the smaller blast load due to the residual strain in longitudinal reinforcement. Furthermore, based on the nonlinear relationship between residual load‐carrying capacity and residual displacement, the accumulated damage of RC beams was divided into mainly four phases.

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Section: Introductionmentioning

confidence: 99%

Effect of load details of the successive explosions on the blast behaviors of reinforced concrete beams

Xu,

Liu,

Huang

et al. 2023

Structural Design Tall Build

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“…The laminate was subjected to low-velocity impact loadings using clamped three-point bending and dart impact tests at different temperatures and velocities. Multi-layered metallic plates were the subject of a number of experiments conducted by Ziya-Shamami et al [23]. The paper analyzed 15 various testing groups, presenting the data obtained in over a hundred experiments.…”

Section: Introductionmentioning

confidence: 99%

Three-Dimensional Bending Analysis of Multi-Layered Orthotropic Plates by Two-Dimensional Numerical Model

2021

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The paper presents effective numerical modelling of multi-layered plates with orthotropic properties. The method called the FEM23 is employed to construct the numerical model. The approach enables a full 3D analysis to be performed while using a 2D finite element mesh. The numerical model for a multi-layered plate is constructed by an assembling procedure, where each layer with orthotropic properties is added to the global numerical model. The paper demonstrates that the FEM23 method is very flexible in defining the multilayered plate, where the thickness of each layer as well as its mechanical orthotropic properties can be defined independently. Several examples of three-layered or nine-layered plates are analyzed in this paper. The results obtained by the FEM23 method coincide with the ones taken from the published papers or calculated with the standard 3D FEM approach. The orthotropic version of the FEM23 can be quite easily applied for other kinds of problems including thermo-mechanics, free vibrations, buckling analysis, or delamination.

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On dynamic response of double-layer rectangular sandwich plates with FML face-sheets and metal foam cores under blast loading

Bai

et al. 2022

J Braz. Soc. Mech. Sci. Eng.

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Structural response of monolithic and multi-layered circular metallic plates under repeated uniformly distributed impulsive loading: An experimental study

Cited by 21 publications

References 35 publications

Effect of load details of the successive explosions on the blast behaviors of reinforced concrete beams

Effect of load details of the successive explosions on the blast behaviors of reinforced concrete beams

Three-Dimensional Bending Analysis of Multi-Layered Orthotropic Plates by Two-Dimensional Numerical Model

On dynamic response of double-layer rectangular sandwich plates with FML face-sheets and metal foam cores under blast loading

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