Modeling and Design of SHPB to Characterize Brittle Materials under Compression for High Strain Rates

Jankowiak, Tomasz; Rusinek, Alexis; Voyiadjis, George Z.

doi:10.3390/ma13092191

Cited by 19 publications

(7 citation statements)

References 40 publications

(87 reference statements)

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“…To measure the dynamic compression strength of concrete, Jankowiak et al. (2020) presented the analytical procedure and numerical simulation of the split Hopkinson pressure bar in which analytical prediction is performed to study the wave propagation in the test with strain rate dependency.…”

Section: Continuum Damage and Plasticitymentioning

confidence: 99%

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A review of continuum damage and plasticity in concrete: Part I – Theoretical framework

Park

Ahmed

Voyiadjis

2021

International Journal of Damage Mechanics

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In the past few decades, extensive research on concrete modeling to predict behavior, crack propagation, microcrack coalescence by utilizing different approaches (fracture mechanics, continuum damage mechanics) were investigated theoretically and numerically. The presented paper aims to review the theoretical work of continuum concrete damage and plasticity modeling in part I of the work. The detailed theoretical work is presented with some of the supporting work related to multiscale modeling and phase-field modeling is also part of this paper. Few other applications related to rate-dependent models and fatigue in concrete are also discussed. In part II of this work, the review of numerical work limited to finite element is presented. Some open issues in concrete damage modeling and future research needed are also discussed in part II.

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Section: Continuum Damage and Plasticitymentioning

confidence: 99%

“…The results obtained from the experiment are the benchmark for the calibration of material constants. More details regarding material parameter calibration can be found in Jankowiak et al. (2020).…”

Section: Continuum Damage and Plasticitymentioning

confidence: 99%

A review of continuum damage and plasticity in concrete: Part I – Theoretical framework

Park

Ahmed

Voyiadjis

2021

International Journal of Damage Mechanics

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“…Compressive tests at high temperature were also carried out. As the best long-term service temperature of nickel-based superalloy was up to 650 °C, with the maximum service temperature not exceeding 800 °C [19,20], the elevated temperature for this study Compressive tests at the ambient temperature (25 • C) were carried out for strain rates at 300, 900, 1400, 2700, and 3500 s −1 . Each rate was repeatedly tested twice.…”

Section: Split Hopkinson Compression Barmentioning

confidence: 99%

“…Compressive tests at high temperature were also carried out. As the best long-term service temperature of nickel-based superalloy was up to 650 • C, with the maximum service temperature not exceeding 800 • C [19,20], the elevated temperature for this study was chosen as 500 • C. An electric resistance furnace was added to the compression test setup, as shown in Figure 6. The incident and transmission bars were first kept out of the furnace, separated from the heating process of the specimen, with the heating rate set at 5 • C/s.…”

Section: Split Hopkinson Compression Barmentioning

confidence: 99%

High Strain Rate Yielding of Additive Manufacturing Inconel 625 by Selective Laser Melting

Yang

et al. 2021

Materials

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Nickel-based alloy Inconel 625, produced by the selective laser melting method, was studied experimentally for its mechanical performance under strain rate loading using Hopkinson bars. Both compression and tensile tests were carried out, with the former also being conducted at 500 °C. The strain rate was in the range of 300 to 3500 s−1 at ambient temperature, and 1200 to 3500 s−1 at the elevated temperature, respectively, for compression tests, and 900 to 2400 s−1 for tensile tests. Results show that the alloy has a strong rate sensitivity with the dynamic yield stress at 3500 s−1, almost doubling the quasistatic value. The test results also show that, even though the temperature elevation leads to material softening, the strain rate effect is still evidential with the dynamic compressive yield stress at the rate 103 s−1 and 500 °C still being higher than the quasistatic one at ambient temperature. It is also observed that dynamic tensile strengths are generally higher than those of compressive ones at room temperature.

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“…Kucewicz et al [ 24 ] used a pulse shaper with a radius of 8 mm to conduct an SHPB experiment by LS-DYNA. Jankowiak et al [ 25 ] used a cylindrical copper shaper with 20 mm diameter and 1 mm thickness. Baranowsk et al [ 26 ] used three numerical modeling methods to establish the pulse shaper model to study the influence of mesh (particle) sensitivity on the characteristics of incident pulses.…”

Section: Introductionmentioning

confidence: 99%

Dynamic Response of Rock-like Materials Based on SHPB Pulse Waveform Characteristics

et al. 2021

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Rock-like brittle materials under dynamic load will show more complex dynamic mechanical properties than those under static load. The relationship between pulse waveform characteristics and strain rate effect and inertia effect is rarely discussed in the split-Hopkinson pressure bar (SHPB) numerical simulation research. In response to this problem, this paper discusses the effects of different pulse types and pulse waveforms on the incident waveform and dynamic response characteristics of specimens based on particle flow code (PFC). The research identifies a critical interval of rock dynamic strength, where the dynamic strength of the specimen is independent of the strain rate but increases with the amplitude of the incident stress wave. When the critical interval is exceeded, the dynamic strength is determined by the strain rate and strain rate gradient. The strain rate of the specimen is only related to the slope of the incident stress wave and is independent of its amplitude. It is also determined that the inertia effect cannot be eliminated in the SHPB. The slope of the velocity pulse waveform determines the strain rate of the specimen, the slope of the force pulse waveform determines the strain rate gradient of the specimen, and the upper bottom time determines the strain rate of the specimen. It provides a reference for SHPB numerical simulation. A dynamic strength prediction model of rock-like materials is then proposed, which considers the effects of strain rate and strain rate gradient.

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Modeling and Design of SHPB to Characterize Brittle Materials under Compression for High Strain Rates

Cited by 19 publications

References 40 publications

A review of continuum damage and plasticity in concrete: Part I – Theoretical framework

A review of continuum damage and plasticity in concrete: Part I – Theoretical framework

High Strain Rate Yielding of Additive Manufacturing Inconel 625 by Selective Laser Melting

Dynamic Response of Rock-like Materials Based on SHPB Pulse Waveform Characteristics

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