Influence of interfacial friction and specimen configuration in Split Hopkinson Pressure Bar system

Zhong, Wei; Rusinek, Alexis; Jankowiak, Tomasz; Abed, Farid; Bernier, Richard; Sutter, Guy

doi:10.1016/j.triboint.2015.04.002

Cited by 61 publications

(32 citation statements)

References 46 publications

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“…By comparing Figures 29 and 30, it can be seen that the effective strain of the cylindrical specimen was higher at the center, while the effective strain of the cubic specimen was higher at the two end faces in contact with the bars. This difference between cylindrical and cubic specimens is similar to the findings in Reference [37]. As shown for the contours of the cylindrical specimen in Figure 40, the effective stress, effective strain, and damage degree were higher at the center than at the two end faces in contact with the bars.…”

Section: Damage Kineticssupporting

confidence: 87%

“…However, many studies on UHMWPE laminate mainly focused on the out-of-plane direction; the in-plane properties were not explored as carefully as for other fiber composites [17,18]. In addition, the size and the shape of the specimen had an influence on the dynamic properties in many studies [7,[36][37][38]. Thus, the effect of size and shape with regard to UHMWPE laminate should also be explored [14].…”

Section: Introductionmentioning

confidence: 99%

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High-Strain-Rate Compressive Behavior of UHMWPE Fiber Laminate

et al. 2020

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Ultra-high-molecular-weight polyethylene (UHMWPE) fiber laminate is currently widely used in ballistic protection for its exceptional physical and mechanical properties. However, the dynamic compressive mechanism of UHMWPE laminate remains poorly understood. Therefore, the stress–strain relationship, the influence of different thickness, area, and shape, and the maximum stress and fracture stress are studied in both out-of-plane and in-plane directions under quasi-static and dynamic loading using a universal test machine, Split Hopkinson pressure bar (SHPB), and high-speed camera. Furthermore, numerical models with cohesive elements are developed. The results indicate a dependency on strain rate and loading direction. Firstly, the stress–strain curve of dynamic testing can be divided into different zones according to different loading directions and strain rates. Secondly, with the increase of the strain rate in the dynamic testing, the maximum stress and fracture stress increase as well; relatively speaking, the fracture stress in the out-of-plane direction is greater than the fracture stress in the in-plane direction. Thirdly, both experiment and simulation indicate that the thickness does not influence the modulus clearly the in out-of-plane direction but influences the modulus in the in-plane direction. Fourthly, the fracture stress of dynamic testing is higher than the fracture stress of quasi-static testing in both directions. Finally, the numerical results show good agreement with the experiment in terms of the maximum stress and failure form.

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Section: Damage Kineticssupporting

confidence: 87%

Section: Introductionmentioning

confidence: 99%

High-Strain-Rate Compressive Behavior of UHMWPE Fiber Laminate

et al. 2020

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“…It is assumed that the SHPB bars have the same crosssectional area and are made of the same, homogeneous material [12]. Let Ay and Ey be the cross-sectional area and elastic modulus of bars, respectively, Cy be the velocity of stress pulse wave, and As and ls be the cross-sectional area and length of the specimen, respectively.…”

Section: Figure 4 Stress Wave Propagation Between Specimen and Barsmentioning

confidence: 99%

Split-Hopkinson Pressure Bar Test and Numerical Simulation of Steel Fiber-reinforced High-strength Concrete

Ji¹,

Shi²,

He³

et al. 2019

RCMA

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The fabrication and optimization of the shelter layer are critical to the performance of the protective works. The novel shelter layer made of steel fiber-reinforced high-strength concrete (SFRHSC) is much more advantageous than that of ordinary concrete. This paper carries out a split-Hopkinson pressure bar (SHPB) test on the steel fiber and high-strength concrete, two main components of the SFRHSC, aiming to disclose the failure features and dynamic compressive strength of the SFRHSC under dynamic conditions. Specifically, the SFRHSC specimens with 0 %, 0.5 % and 1.0 % of steel fiber were subjected to impact compression test under the air pressures of 0.7, 0.9 and 1.0MPa, respectively. In addition, the impact compression process was also numerically simulated on the finite-element software LS-DYNA. The research results show that: the increase in strain rate pushed up the dynamic compressive strength of the SFRHSC, that is, the failure degree of the specimen was greatly enhanced by the strain rate; under the air pressure of 0.7MPa, the specimen with 1.0 % of steel fiber had the highest dynamic compressive strength (180.9MPa), 22.6 % higher than that of the specimen with no steel fiber; the numerical simulation reproduced the one-dimensional (1D) propagation of the stress wave in the bars, which proves the hypothesis of 1D elastic stress wave, and restaged the impact compression process on the SFRHSC, outputting results similar to the test data. Keywords: steel fiber-reinforced high-strength concrete (SFRHSC), impact compression, strain rate effect, numerical simulation Camouflaged layer Bursting layer Distribution layer Supporting structure Revue des Composites et des Matériaux Avancés

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“…4. Compression using a sandwich specimen (Zhong et al, 2015) and shear tests (Rusinek and Klepaczko, 2001;Bao and Wierzbicki, 2004) also reports for this material but it is out of scope of this analysis.…”

Section: Experimental Approachmentioning

confidence: 99%

Experimental and numerical analysis of the aluminum alloy AW5005 behavior subjected to tension and perforation under dynamic loading

Bendarma

Jankowiak

Łodygowski

et al. 2017

jtam

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The paper describes mechanical behavior of aluminum alloy AW5005 (EN AW5005) under impact loading. The work is focused on tensile tests and the process of perforation of aluminum alloy AW5005 sheets. Experimental, analytical and numerical investigations are carried out to analyse in details the perforation process. Based on these approaches, ballistic properties of the structure impacted by a conical nose shape projectile are studied. Different failure criteria are discussed, coupling numerical and experimental analyses for a wide range of strain rates. Optimization method functions are used to identify the parameters of the failure criteria. Finally, good correlation is obtained between the numerical and experimental results for both tension and perforation tests.

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Influence of interfacial friction and specimen configuration in Split Hopkinson Pressure Bar system

Cited by 61 publications

References 46 publications

High-Strain-Rate Compressive Behavior of UHMWPE Fiber Laminate

High-Strain-Rate Compressive Behavior of UHMWPE Fiber Laminate

Split-Hopkinson Pressure Bar Test and Numerical Simulation of Steel Fiber-reinforced High-strength Concrete

Experimental and numerical analysis of the aluminum alloy AW5005 behavior subjected to tension and perforation under dynamic loading

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