Failure analysis of reinforced concrete slab under impact loading using a novel numerical method

Ning, Jianguo; Meng, Fanzhong; Ma, Tianbao; Xu, Xiangzhao

doi:10.1016/j.ijimpeng.2020.103647

Cited by 35 publications

(13 citation statements)

References 46 publications

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“…Thus, it is able to deal with the large deformation problem, but the interface between the multi-material is difficult to track, and the accuracy of tracking the material interface is not as good as that of Lagrange methods [ 33 ]. In this paper, a coupled Euler and Lagrange method, which combined the advantages of the Euler method and Lagrange methods, is adopted [ 34 ]. In this method, the particle with a certain influence domain is used to track the material inside the Euler grid, and the bidirectional mapping is used to realize the mapping of physical quantities between the Euler grid and the Lagrange particles.…”

Section: Methodsmentioning

confidence: 99%

Experimental and Numerical Study on the Mechanical Behavior of Composite Steel Structure under Explosion Load

Zheng

2021

Materials

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Most engineering structures are composed of basic components such as plates, shells, and beams, and their dynamic characteristics under explosion load determine the impact resistance of the structure. In this paper, a three-dimensional composite steel structure was designed using a beam, plate, and other basic elements to study its mechanical behavior under explosion load. Subsequently, experiments on the composite steel structure under explosion load were carried out to study its mechanical behavior, and the failure mode and deformation data of the composite steel structure were obtained, which provided important experimental data regarding the dynamic response and mechanical behavior of the composite steel structure under explosion load. Then, we independently developed a parallel program with the coupled calculation method to solve the numerical simulation of the dynamic response and failure process of the composite steel structure under explosion load. This program adopts the Euler method as a whole, and Lagrange particles are used for materials that need to be accurately tracked. The numerical calculation results are in good agreement with the experimental data, indicating that the developed parallel program can effectively deal with the large deformation problems of multi-medium materials and the numerical simulation of the complex engineering structure failures subjected to the strong impact load.

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Section: Methodsmentioning

confidence: 99%

Experimental and Numerical Study on the Mechanical Behavior of Composite Steel Structure under Explosion Load

Zheng

2021

Materials

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“…This may attribute to that the empirical solution is based on the CEA-EDF formula for concrete [20,21,30], see Ref. [26], which does not reflect what has been proved experimentally that increasing f c to double or even more did not increase the PL of the concrete target by more than 10% [1,19,56,57]. By examining the CEA-EDF formula for concrete (Eq.…”

Section: Panels With Rear Steel Platesmentioning

confidence: 99%

Perforation Limit of Steel-Concrete-Steel Barriers Resisting Impact

Abdel‐Kader¹

2022

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Introducing a numerical modelling and formulae to predict ballistic limit (perforation velocity or perforation limit) of concrete barriers strengthened with steel plates and subjected to rigid projectile impact was the aim of this study. A formula to predict the perforation limit of front steel-concrete (S-C) target is proposed. A formula to predict the perforation limit of steel-concrete-steel (S-C-S) target is also proposed which reflects the significant effect of the rear steel liner. The results, being in good agreement with the experiment, have showed that the interaction between the concrete panel and the front steel liner (even with full bond assumption) has little effect on the perforation limit of the S-C target. In design of protective structures and regarding the percentage increase in perforation limit over reinforcement ratio of steel plates, the concrete-rear steel (C-S) target gives better result from the economic perspective than the S-C-S target. It is recommended to modify the power of compressive strength of concrete f c in the CEA-EDF perforation formula for concrete to avoid over-prediction of perforation limit when using high strength concrete. This modification may extend to other perforation formulae for concrete.

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“…使用分离式霍普金森压杆 [19] 对42CrMo钢试样进图 1 (网络版彩图)压缩实验的真实应力-应变曲线 , 通过一维弹性波传播理论 [20,21] 将实验测得的应变脉冲信号与平均工程应变率和试样中的应力应变相关联. 典型波形如图3…”

Section: 冲击动态实验及结果unclassified

Dynamic mechanical response and a constitutive model of 42CrMo steel that incorporates the effects of high strain rates

Zhu

Zhang

2021

Sci. Sin.-Tech.

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Failure analysis of reinforced concrete slab under impact loading using a novel numerical method

Cited by 35 publications

References 46 publications

Experimental and Numerical Study on the Mechanical Behavior of Composite Steel Structure under Explosion Load

Experimental and Numerical Study on the Mechanical Behavior of Composite Steel Structure under Explosion Load

Perforation Limit of Steel-Concrete-Steel Barriers Resisting Impact

Dynamic mechanical response and a constitutive model of 42CrMo steel that incorporates the effects of high strain rates

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