Research on dynamic constitutive model of ultra-high performance fiber-reinforced concrete

Du, Yongxiao; Wei, Jun; Liu, Kang; Huang, Dunwen; Lin, Q W; Yang, Bincai

doi:10.1016/j.conbuildmat.2019.117386

Cited by 43 publications

(10 citation statements)

References 39 publications

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“…Holmquist, Johnson, and Cook proposed the Holmquist-Johnson-Cook (HJC) damage constitutive model to describe the nonlinear deformation and fracture characteristics of engineering and geological materials under large strain and high variability. This model considers high hydrostatic pressure, high strain rate, and the material damage effect [30][31][32][33][34][35].…”

Section: Holmquist-johnson-cook Theoretical Modelmentioning

confidence: 99%

Optimization of the Air Deck Blasting Parameters on the Basis of the Holmquist-Johnson-Cook Constitutive Model

Yin¹,

Wang²,

Wang³

et al. 2022

Fluid Dynamics &Amp; Materials Processing

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The present study considers the so-called air deck blasting, one of the most commonly used techniques for the improvement of blasting efficiency in mining applications. In particular, it aims to improve the operating conditions of large-scale equipment, increase the efficiency of the slope enlarging process, and reduce the mining cost. These objectives are implemented through a two-fold approach where, first, a program for slope enlarging based on the middle air-deck charge blasting-loosening technology is proposed, and second, the physical mechanism responsible for the stress wave attenuation in the rock is analyzed in the framework of a Holmquist-Johnson-Cook constitutive model. Field test results verify that the proposed approach is highly efficient and economical when used in medium-hard rock blasting and thus provides a basis for the practical implementation of slope enlargement for high benches in Open-Pit Mines.

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Section: Holmquist-johnson-cook Theoretical Modelmentioning

confidence: 99%

Optimization of the Air Deck Blasting Parameters on the Basis of the Holmquist-Johnson-Cook Constitutive Model

Yin¹,

Wang²,

Wang³

et al. 2022

Fluid Dynamics &Amp; Materials Processing

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“…Ultra High-Performance Concrete (UHPC) has been treated as a superior type of concrete material for more than thirty years [1]. This material possesses many outstanding mechanical and chemical properties properties in such as high strength in compression and tension, impressive durability, large density and high strain rate under dynamic load [2][3][4]. Despite a long time of development, UHPC is still a new material in comparison with the development history of other types of concrete.…”

Section: Introductionmentioning

confidence: 99%

Investigation of the shear behavior of ultra-high performance concrete girder by simulation approach

Dao,

Mai,

et al. 2023

IOP Conf. Ser.: Mater. Sci. Eng.

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The present study investigates the shear behavior of the Ultra High Performance Concrete girder strengthened by steel bars and stirrups by simulation approach. Utilizing the Concrete Damage Plasticity model that involves strength reduction and nonlinear behavior of the material, 3D simulation models are established and analyzed by the commercial software Abaqus. The numerical simulation model is verified by comparing the test data to ensure reliability. Numerical simulation models were then developed to investigate the relationship of shear force with parametric studies of shear span to depth ratio, steel bar ratio and stirrups spacing. Based on the obtained results, the simulation model and test results show a good agreement. The relation between the shear capacity of UHPC girder and parametric studies was also enlightened.

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“…It has been successfully used to analyze a UHPC concrete material under blast loading and ballistic impacts (Wan et al, 2021). Furthermore, it has been implemented for studying the effect of various degrees of fiber reinforcement due to loading from high strain rates (Du et al, 2020). It has also been used to predict high-strength concrete, rock materials, and pre-stressed concrete materials subjected to high-speed projectile impacts (Rajput et al, 2018; Ren et al, 2017).…”

Section: Introductionmentioning

confidence: 99%

Assessment of the ballistic impact response of Cor-Tuf UHPC concrete using the HJC constitutive model

Perkins

Duncan

Johnson

et al. 2023

International Journal of Protective Structures

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Concrete offers superior strength in compressive loadings and is implemented for many applications. The high compressive strengths enable concrete to resist high strain rate loading scenarios such as ballistic impacts. A variety of concrete denoted as Cor-Tuf, which is classified as ultra-high-performance concrete with a compressive strength of 210 MPa, is evaluated in this study. The response of this concrete is assessed through a finite element analysis under the high strain rate loadings of ballistic impacts. To capture the response of the concrete, a plasticity and damage constitutive model denoted as the HJC model is implemented. The parameters of this model are calibrated to the Cor-Tuf concrete using confined compression experiments, unconfined compression experiments, and shock experiments. The concrete target is impacted at speeds between 610 m/s through 1112 m/s, and the results are compared to existing experimental data. Our results show that the HJC model can predict the response of this impact to the Cor-Tuf concrete targets as an average error of 5.85% is found. The results of this study present parameters which can be implemented with the HJC concrete model for future studies to model the response of the Cor-Tuf UHPC.

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Research on dynamic constitutive model of ultra-high performance fiber-reinforced concrete

Cited by 43 publications

References 39 publications

Optimization of the Air Deck Blasting Parameters on the Basis of the Holmquist-Johnson-Cook Constitutive Model

Optimization of the Air Deck Blasting Parameters on the Basis of the Holmquist-Johnson-Cook Constitutive Model

Investigation of the shear behavior of ultra-high performance concrete girder by simulation approach

Assessment of the ballistic impact response of Cor-Tuf UHPC concrete using the HJC constitutive model

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