Evaluation of typical dynamic damage models used for UHPC based on SHPB technology

Ren, Liang; Yu, Xiaoquan; Zheng, Mingxin; Xue, Zhihui; Wu, Bitao; He, Yu Chuan

doi:10.1016/j.engfracmech.2022.108562

Cited by 6 publications

(2 citation statements)

References 19 publications

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“…Peng et al [ 28 ] used ANSYS/LS-DYNA to analyze the effects of diameters and loading rates on the wave dispersion of input rods in rectangular and half-sine-loaded SHPB. Ren et al [ 29 ] used the Holmquist–Johnson–Cook (HJC) and Karagozian and Case concrete (K & C) models in the LS-DYNA software and established the dynamic mechanical properties of ultra-high-performance concrete (UHPC) under two typical dynamic damage models. Wang et al [ 30 ] explored the feasibility and applicability of the modified Riedel–Hiermaier–Thoma (RHT) and HJC models, respectively, in the numerical simulation of granite blasting using LS-DYNA software.…”

Section: Introductionmentioning

confidence: 99%

Study on Damage Characteristics and Failure Modes of Gypsum Rock under Dynamic Impact Load

Ren

Zhang

et al. 2023

Materials

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The objective of this work was to investigate the damage characteristics and failure modes of gypsum rock under dynamic impact loading. Split Hopkinson pressure bar (SHPB) tests were performed under different strain rates. The strain rate effects on the dynamic peak strength, dynamic elastic modulus, energy density, and crushing size of gypsum rock were analyzed. A numerical model of the SHPB was established using the finite element software, ANSYS 19.0, and its reliability was verified by comparing it to laboratory test results. The results showed that the dynamic peak strength and energy consumption density of gypsum rock increased exponentially with strain rate, and the crushing size decreased exponentially with the strain rate, both findings exhibited an obvious correlation. The dynamic elastic modulus was larger than the static elastic modulus, but did not show a significant correlation. Gypsum rock fracture can be divided into crack compaction, crack initiation, crack propagation, and breaking stages, and is dominated by splitting failure. With increasing strain rate, the interaction between cracks is noticeable, and the failure mode changes from splitting to crushing failure. These results provide theoretical support for improvements of the refinement process in gypsum mines.

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Section: Introductionmentioning

confidence: 99%

Study on Damage Characteristics and Failure Modes of Gypsum Rock under Dynamic Impact Load

Ren

Zhang

et al. 2023

Materials

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“…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). The HJC model has also been used previously to determine parameters to fit UHPC using a split Hopkinson pressure bar (SHPB) analysis (Khosravani, 2021;Ren et al, 2022), geopolymer-based-ultra-high performance concrete for projectile penetration analysis (Liu et al, 2022), and a UHPC reinforced with steel fibers (Wan et al, 2021). The performance of this model has not been characterized for the UHPC Cor-Tuf concrete, which was developed as a new class of concrete by the U.S. army engineering research and development center (ERDC) (Williams et al, 2009).…”

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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Dynamic compressive properties of 2D-aligned steel fiber reinforced cement-based composites

Mu,

Cheng,

Zhao

et al. 2024

Construction and Building Materials

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Evaluation of typical dynamic damage models used for UHPC based on SHPB technology

Cited by 6 publications

References 19 publications

Study on Damage Characteristics and Failure Modes of Gypsum Rock under Dynamic Impact Load

Study on Damage Characteristics and Failure Modes of Gypsum Rock under Dynamic Impact Load

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

Dynamic compressive properties of 2D-aligned steel fiber reinforced cement-based composites

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