Damage effect of steel circular tube subjected to fire and blast

Sun, Yuxiang; Wang, Xin; Ji, Chong; Gao, Fuyin; Yu, Yang; Cheng, L.; Zhang, Kun; Jiang, Tao; Wu, Jianyu

doi:10.1016/j.jcsr.2020.106389

Cited by 5 publications

(3 citation statements)

References 23 publications

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“…The influence of strain rates in the steel plate was taken into account using the Cowper-Symonds relation [6] because it is simpler thus fewer parameters were required [7] compared to the Johnson-Cook flow stress model [8]. Equation (3) shows the Cowper-Symond relation, where the coefficients D and q could vary due to various conditions [17].…”

Section: Model Geometry and Materials Propertiesmentioning

confidence: 99%

“…1140 (2023) 012015 IOP Publishing doi:10.1088/1755-1315/1140/1/012015 2 Fire is another source of temperature that cause heat to generate inside the steel plate and changes its behaviour. In the last few decades, there has been a surge of interest in the effects of blast loading combined with fire loading [7]- [11]. Song and Izzuddin [10], [11] proposed a new method for the nonlinear analysis of steel frames conditions where two cases of fire and explosion loading can be applied in isolation but within the same analysis.…”

Section: Introductionmentioning

confidence: 99%

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The Influence of Adiabatic Heat and Combined Blast Load and Fire Loading on the Response of Mild Steel Plates

Razak

Mazlan

Hassan

et al. 2023

IOP Conf. Ser.: Earth Environ. Sci.

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This paper study the influence of adiabatic heat and fire loading on the behaviour of unstiffened mild steel plates subjected to close-in blast loads using finite element (FE) analysis. A quarter-symmetry 3D FE model consists of the steel plate, clamps and bolts was developed using Abaqus/CAE. Classical plasticity model was used as the material model in the steel plate and bolts. The clamps were assumed as an elastic material. Temperature-material properties relationship according to Eurocode 3 and Masui model was assigned to the steel plate. Conwep function was used to simulate the blast loads. The influence of strain rates was considered in the steel plate using the Cowper-Symonds equation. The FE model of the unstiffened plates was verified and validated against experimental data from literature, where a good agreement was achieved. The results suggest the adiabatic heat in the steel plates does not significantly influence the behaviour of the steel plates in both temperature-material properties models. The study then investigated the effect of combined blast loads and fire loading on the response of steel plates. The fire loading was applied by increasing the temperature in the steel from 200 °C to 1000 °C. Excessive deformation and thinning of the plate at the central area of the plate was observed. The thinning at the central area is pronounce than the thinning of the plate at the boundary between the clamp and the steel plate. Hence, the FE analysis suggests that the failure might occur at the central area of the plate, which could suggest a tearing type of failure. This type of failure is common in plates subjected to close-in blast loads. Therefore, this study has shown that the effect of adiabatic heat is insignificant, and the combined blast-fire loading might cause a similar type of failure as in plates subjected to blast loads only.

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Section: Model Geometry and Materials Propertiesmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

The Influence of Adiabatic Heat and Combined Blast Load and Fire Loading on the Response of Mild Steel Plates

Razak

Mazlan

Hassan

et al. 2023

IOP Conf. Ser.: Earth Environ. Sci.

View full text Add to dashboard Cite

show abstract

“…Sun et al [17] performed experiments on Q345B steel tubes, and employed scanning electron microscopy to explore the rupturing mechanism under a microscope. In order to predict the behavior and failure of steel columns subjected to blast pressure followed by fire, Al-Thairy [18] developed a new numerical model to perform both dynamic and transient thermal analyses simultaneously using the dynamic fully coupled thermal-displacement analysis procedure within ABAQUS/explicit.…”

Section: Introductionmentioning

confidence: 99%

Analysis on the Dynamic Responses of Steel Beam under the Condition of Heat and Blast Loads

Tan¹,

Li²,

Wu³

et al. 2022

IJHT

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Numerical simulation and analysis on the responses of steel beam under fire thermal load and blast load are performed using ABAQUS general finite element program. In this study, two cases with different order of applying the fire thermal load and blast load in a different order are considered: 1) when the steel beam is heated by fire first and then is impacted by blast load, the influence of the temperature on the pulse amplitude–impulse (P-I) diagrams is discussed and the saturated impulse and the minimum impulse related to temperature are analyzed. 2) when steel beam is impacted by blast loading first and then is attacked by fire, the influences of the initial static load and the pulse amplitude on the critical temperature-impulse (Tcr-I) diagrams are analyzed. The analysis results show that the higher the temperature is, the lower the impact resistance capability of steel beam is. The saturated impulse and the minimum impulse can be used to measure the impact resistance capability of steel beam. The impulse I(ηD) can be used to measure the fire resistance performance of steel beam. The blast load can obviously reduce the fire resistance capability of steel beam.

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Effects of connection types and elevated temperature on the impact behaviour of restrained beam in portal steel frame

et al. 2023

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Damage effect of steel circular tube subjected to fire and blast

Cited by 5 publications

References 23 publications

The Influence of Adiabatic Heat and Combined Blast Load and Fire Loading on the Response of Mild Steel Plates

The Influence of Adiabatic Heat and Combined Blast Load and Fire Loading on the Response of Mild Steel Plates

Analysis on the Dynamic Responses of Steel Beam under the Condition of Heat and Blast Loads

Effects of connection types and elevated temperature on the impact behaviour of restrained beam in portal steel frame

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