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Relevant bibliographies by topics / Hopkinson pressure bars (SHPB)

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Academic literature on the topic 'Hopkinson pressure bars (SHPB)'

Author: Grafiati

Published: 30 March 2023

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Journal articles on the topic "Hopkinson pressure bars (SHPB)"

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Harrigan, John J., Bright Ahonsi, Elisavet Palamidi, and Steve R. Reid. "Experimental and numerical investigations on the use of polymer Hopkinson pressure bars." Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences 372, no. 2023 (2014): 20130201. http://dx.doi.org/10.1098/rsta.2013.0201.

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Split Hopkinson pressure bar (SHPB) testing has traditionally been carried out using metal bars. For testing low stiffness materials such as rubbers or low strength materials such as low density cellular solids considered primarily herein, there are many advantages to replacing the metal bars with polymer bars. An investigation of a number of aspects associated with the accuracy of SHPB testing of these materials is reported. Test data are used to provide qualitative comparisons of accuracy using different bar materials and wave-separation techniques. Sample results from SHPB tests are provide

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Pham, Thanh Nam, Hyo Seong Choi, and Jong Bong Kim. "A Numerical Investigation into the Tensile Split Hopkinson Pressure Bars Test for Sheet Metals." Applied Mechanics and Materials 421 (September 2013): 464–67. http://dx.doi.org/10.4028/www.scientific.net/amm.421.464.

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Determination of theflow stress of materials at high strain rate is very important in automotive and military areas.The compressive flow stress at high strain rate can be obtained relativelyexactly by SHPB(Split Hopkinson Pressure Bars) tests. However, it is difficult to determinethe flow stressexactlyin the tensile state by using the SHPB tests. The difficulty in the tensile SHPB tests is how to fix a specimen on two bars. So, the design of a specimen and holders is needed to obtain more accurate measurement of the flow stress. In this study, the accuracy of the tensile SHPB tests results was

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Quinn, R. M., L. H. Zhang, M. J. Cox, et al. "Development and Validation of a Hopkinson Bar for Hazardous Materials." Experimental Mechanics 60, no. 9 (2020): 1275–88. http://dx.doi.org/10.1007/s11340-020-00638-w.

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Abstract Background There are a variety of approaches that can be employed for Hopkinson bar compression testing and there is no standard procedure. Objectives A Split-Hopkinson pressure bar (SHPB) testing technique is presented which has been specifically developed for the characterisation of hazardous materials such as radioactive metals. This new SHPB technique is validated and a comparison is made with results obtained at another laboratory. Methods Compression SHPB tests are performed on identical copper specimens using the new SHPB procedures at Imperial College London and confirmatory m

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Kariem, Muhammad Agus, John H. Beynon, and Dong Ruan. "Numerical Simulation of Double Specimens in Split Hopkinson Pressure Bar Testing." Materials Science Forum 654-656 (June 2010): 2483–86. http://dx.doi.org/10.4028/www.scientific.net/msf.654-656.2483.

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The split Hopkinson pressure bar (SHPB) is the most commonly used technique to characterize the dynamic behaviour of materials at very high strain rates. However, a classic single specimen test only generates a single stress-strain curve at the average strain rate of the test. This paper proposes three arrangements on the use of double specimens in SHPB compression testing. All waves propagating along the bars have been used to analyse the dynamic behaviour of the specimens. To simulate the test and predict its dynamic performance, an axisymmetric finite element analysis using LS-DYNA was cond

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Baranowski, Pawel, Roman Gieleta, Jerzy Malachowski, Krzysztof Damaziak, and Lukasz Mazurkiewicz. "SPLIT HOPKINSON PRESSURE BAR IMPULSE EXPERIMENTAL MEASUREMENT WITH NUMERICAL VALIDATION." Metrology and Measurement Systems 21, no. 1 (2014): 47–58. http://dx.doi.org/10.2478/mms-2014-0005.

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Abstract Materials and their development process are highly dependent on proper experimental testing under wide range of loading within which high-strain rate conditions play a very significant role. For such dynamic loading Split Hopkinson Pressure Bar (SHPB) is widely used for investigating the dynamic behavior of various materials. The presented paper is focused on the SHPB impulse measurement process using experimental and numerical methods. One of the main problems occurring during tests are oscillations recorded by the strain gauges which adversely affect results. Thus, it is desired to

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Nie, Hailiang, Weifeng Ma, Junjie Ren, et al. "Size Effect in the Split Hopkinson Pressure Bar Experiment." Journal of Physics: Conference Series 2160, no. 1 (2022): 012065. http://dx.doi.org/10.1088/1742-6596/2160/1/012065.

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Abstract For many structures, their service environment is very strict, and the requirements for the impact resistance of materials are very high. Therefore, the dynamic testing method has important scientific significance and application value for practical engineering. Split Hopkinson pressure bar (SHPB) is one of the most common experimental methods for obtaining dynamic mechanical properties of materials. However, there is no uniform standard for the size of the bars and specimens used in the test. Theoretically, the size has little influence on the experimental results, but it has not bee

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Adorna, Marcel, Jan Falta, Tomáš Fíla, and Petr Zlámal. "PREPROCESSING OF HOPKINSON BAR EXPERIMENT DATA: FILTER ANALYSIS." Acta Polytechnica CTU Proceedings 18 (October 23, 2018): 77. http://dx.doi.org/10.14311/app.2018.18.0077.

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This work presents a data preprocessing procedure for signal acquired during high strain-rate loading using a custom Split Hopkinson Pressure Bar (SHPB). Before the evaluation of the experimental data, preprocessing of the measured signals including application of suitable digital or analog filter needs to be performed. Our department mainly focuses on measurements performed on advanced materials (e.g. materials with predefined structures or hybrid foams). For such measurements, it is essential to perform data preprocessing and apply suitable filter, to be able to appropriately determine defor

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Zhang, Xing, Bao Cheng Li, Zhi Min Zhang, and Zhi Wen Wang. "Investigation on Deformation in ZK60 at High Strain Rate." Materials Science Forum 488-489 (July 2005): 527–30. http://dx.doi.org/10.4028/www.scientific.net/msf.488-489.527.

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Split Hopkinson Pressure Bars (SHPB) was applied to investigate shock resistance of magnesium alloy. The deformation behaviour was reported of ZK60 magnesium alloy at high strain rate, and the relationship was established between the dynamic properties and the impact velocity. Results indicate: with impact velocity improvement, much twinned crystal and fine grain can be obtianed, this made dynamic properties enhancement of ZK60 alloy.

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Zhao, Peng Duo, Yu Wang, Jian Ye Du, Lei Zhang, Zhi Peng Du, and Fang Yun Lu. "Using Split Hopkinson Pressure Bars to Perform Large Strain Compression Tests on Neoprene at Intermediate and High Strain Rates." Advanced Materials Research 631-632 (January 2013): 458–62. http://dx.doi.org/10.4028/www.scientific.net/amr.631-632.458.

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The strain rate sensitivity of neoprene is characterized using a modified split Hopkinson pressure bar (SHPB) system at intermediate (50 s-1, 100 s-1) and high (500 s-1, 1000 s-1) strain rates. We used two quartz piezoelectric force transducers that were sandwiched between the specimen and experimental bars respectively to directly measure the weak wave signals. A laser gap gage was employed to monitor the deformation of the sample directly. Three kinds of neoprene rubbers (Shore hardness: SHA60, SHA65, and SHA70) were tested using the modified split Hopkinson pressure bar. Experimental result

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Lee, Sang Hyun, Brian Tuazon, and Hyung Seop Shin. "Construction of Data Acquisition/Processing System for Precise Measurement in Split Hopkinson Pressure Bar Test." Applied Mechanics and Materials 566 (June 2014): 554–59. http://dx.doi.org/10.4028/www.scientific.net/amm.566.554.

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The Split Hopkinson Pressure Bar (SHPB) testing technique has been used to derive the constitutive equations of engineering materials at high strain rate using the reflected and transmitted waves measured from the input and output bars. In this case, a precise measurement of the reflected and transmitted waves is important to determine a reliable stress-strain relation. In this study, to achieve the precise measurement of the reflected and transmitted waves in the SHPB experiment, a data acquisition scheme utilizing the LabVIEW software and a post processing program have been constructed. With

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Dissertations / Theses on the topic "Hopkinson pressure bars (SHPB)"

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Chihi, Manel. "Étude des performances d’un composite carbone/époxy dopé par des nanocharges sous des sollicitations sévères." Electronic Thesis or Diss., Brest, École nationale supérieure de techniques avancées Bretagne, 2021. http://www.theses.fr/2021ENTA0017.

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Ce travail de thèse a été réalisé dans un contexte de valorisation des matériaux composites à base de nanocharges. La connaissance du comportement mécanique des nanocomposites dopés par des nanocharges soumis à des sollicitations dynamiques sévères est une donnée importante pour les concepteurs des structures composites dédiées aux applications civiles et militaires. Ce comportement doit être caractérisé dans un large domaine de déformation ; pour des vitesses de déformation pouvant atteindre 10⁵s⁻¹. Une attention particulière est portée au système des barres d’Hopkinson (SHPB) en raison de so

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Berger-Pelletier, Hugues. "Modelling of split hopkinson pressure bars : adaptation of a compression apparatus into tension." Thesis, Université Laval, 2013. http://www.theses.ulaval.ca/2013/28977/28977.pdf.

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Les Barres d’Hopkinson sont couramment utilisées pour tester les matériaux à des hauts taux de déformations. Souvent, différents systèmes de barres sont utilisés pour tester les matériaux en tension ou en compression. Par contre, il serait pratique d’utiliser un seul système, pour prendre des mesures en tension et en compression. Des études ont été faites pour convertir le système de compression existant du centre de Recherche et Développement pour la Défense Canada (RDDC) de ValCartier. Un concept a été choisi parmi 6 systèmes de tension déjà existants. Le choix a été validé avec un modèle d

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Hughes, Foz. "The high strain-rate behaviour of polymers and nanocomposites for lightweight armour applications." Thesis, Loughborough University, 2013. https://dspace.lboro.ac.uk/2134/13705.

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The need for efficient, lightweight armour solutions has never been so great as it is today. Increasing numbers of personnel, both military and civilian are being placed in an expanding variety of life-threatening situations, and we must recognise the responsibility to maximise their combat survivability. One way to help protect these people is to provide them with some form of armour. Advanced polymeric materials are finding an increasing range of industrial and defence applications. These materials have the potential to improve the performance of current armour systems, whilst also reducing

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Durand, Bastien. "Etude expérimentale du frottement entre l’acier et un matériau fragile sous haute vitesse et haute pression." Thesis, Orléans, 2013. http://www.theses.fr/2013ORLE2039/document.

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L’objectif de la thèse est la caractérisation expérimentale du frottement entre l’acier et un matériau fragile. Les pressions et les vitesses de glissement qu’on cherche à atteindre sont respectivement de l’ordre de 10 à 100 MPa et l’ordre de 10 à 100 m/s. Les tribomètres classiques ne peuvent pas être utilisés car les pressions qu’on cherche à atteindre sont suffisamment élevées pour mener le matériau fragile à rupture. Pour pallier cette difficulté, le matériau doit être confiné. Un échantillon cylindrique du matériau est alors inséré dans un tube en acier qui fait à la fois office de confin

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Lea, Lewis John. "Structural evolution in the dynamic plasticity of FCC metals." Thesis, University of Cambridge, 2018. https://www.repository.cam.ac.uk/handle/1810/273897.

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Above true strain rates of $10^4$ s$^{-1}$ FCC metals exhibit a rapid increase in strength. Understanding of the physical mechanisms behind this strength transition is hindered by the number and interdependence of candidate mechanisms. Broadly, contributions to strength can be split into `instantaneous' effects and the more permanent `structural' ones. In this thesis a series of experiments are presented which are designed to separate the two types of contribution. Chapter 2 outlines the basics of dislocation plasticity, based on the seminal works of Taylor and Orowan. It then progresses on to

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Book chapters on the topic "Hopkinson pressure bars (SHPB)"

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Govender, R. A., G. S. Langdon, and G. N. Nurick. "Impact Bend Tests Using Hopkinson Pressure Bars." In Dynamic Behavior of Materials, Volume 1. Springer International Publishing, 2013. http://dx.doi.org/10.1007/978-3-319-00771-7_51.

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Zuanetti, Bryan, Kyle Ramos, Carl Cady, et al. "High Strain-Rate Testing of Brittle Materials Using Miniature Beryllium Split-Hopkinson Pressure Bars." In The Minerals, Metals & Materials Series. Springer Nature Switzerland, 2023. http://dx.doi.org/10.1007/978-3-031-22576-5_7.

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Bracq, A., G. Haugou, and H. Morvan. "Constitutive Modeling of Polyamide Split Hopkinson Pressure Bars for the Design of a Pre-stretched Apparatus." In Dynamic Behavior of Materials, Volume 1. Springer International Publishing, 2018. http://dx.doi.org/10.1007/978-3-319-95089-1_36.

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Elkarous, L., A. Nasri, and R. Nasri. "Dynamic Calibration Method for Copper Crusher Gauges Based on Split Hopkinson Pressure Bars Technique and Finite Element Modeling." In Lecture Notes in Mechanical Engineering. Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-27146-6_80.

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Kruszka, Leopold, and Kamil Sobczyk. "Round-Robin Exercise for Compression Testing of Steel Alloy of Pressure Tank at High Strain Rate." In Critical Energy Infrastructure Protection. IOS Press, 2022. http://dx.doi.org/10.3233/nicsp220007.

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The aim of the paper is to show a type of the round-Robin test on the example of experiments at a high strain rate using various split Hopkinson pressure bar test stands located at different locations in Warsaw – a scientific-technical center and a university. The results of the conducted experiments in the form of a circumferential stress and radial stress were shown for each analyzed SHPB test stand, using an identical research specimen. A comparison was made, and the obtained results were compared on the graphs of the stress-strain curve for various SHPB test stands and on the strain rate – strain graphs for the selected SHPB test stand.

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"The water saturation effects on dynamic tensile strength in red and buff sandstones studied with Split Hopkinson Pressure Bar (SHPB)." In Advanced Materials, Structures and Mechanical Engineering. CRC Press, 2016. http://dx.doi.org/10.1201/b19693-36.

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Conference papers on the topic "Hopkinson pressure bars (SHPB)"

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Costanzi, Marco, Gautam Sayal, and Golam Newaz. "Dynamic Behavior of Monolithic and Composite Materials by Split Hopkinson Pressure Bar Testing." In ASME 2002 International Mechanical Engineering Congress and Exposition. ASMEDC, 2002. http://dx.doi.org/10.1115/imece2002-32944.

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A Split Hopkinson Pressure Bar (SHPB), an experimental apparatus for testing of solid materials at high strain rates, was in-house designed and realized by the Mechanical Engineering Dept. of WSU: it can test different types of materials and provide their dynamic mechanical properties (e.g. Young’s modulus, hardening or plasticization coefficients, yield strength). This SHPB works at strain rate levels between 1000 and 3000 s-1 and impact speeds between 6 and 9 m/s. The specimen is simply a 6 mm dia. 3 mm long cylinder. The apparatus and its software were benchmarked by means of tests on Alumi

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Tanabe, Yuji, Takeo Tamura, Kenji Suzuki, Jiro Kuniya, and Tetsuo Shoji. "Contributory Factors to Accurate Prediction of Rate of Stress Corrosion Cracking in Boiling Water Reactor Under Unexpected Condition During Operation: Part 3—The Effect of High Loading Rate on SCC Growth Behaviour." In ASME 2010 Pressure Vessels and Piping Division/K-PVP Conference. ASMEDC, 2010. http://dx.doi.org/10.1115/pvp2010-26136.

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The goal of the study is to reveal the effect of high loading rate on the stable SCC growth behaviour of nuclear-grade stainless steel, SUS316L. To this end, the Split-Hopkinson pressure bar (SHPB) experiments on SUS316L were performed first to establish the dynamic tensile stress-strain response at strain rates up to 700s−1. The analyses of dynamic stress intensity factors for wedge loading experiments on modified compact tension specimens during SCC test were then performed by the finite element method. The outline of the wedge loading experiments by the use of the Split-Hopkinson pressure b

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Vallee, Glenn E., and Steven D. Army. "Determination of the Temperature Dependent Dynamic Response of Elastomeric Materials Using the Split Hopkinson Pressure Bar." In ASME 2006 International Mechanical Engineering Congress and Exposition. ASMEDC, 2006. http://dx.doi.org/10.1115/imece2006-13262.

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An effective, low cost method of determining the temperature dependent dynamic response of elastomeric materials at high strain rates using the Split Hopkinson Pressure Bar (SHPB) is developed. The test system allows the determination of the dynamic modulus at temperatures up to 150°C with control of specimen temperature within ± 3°C without the use of specialized equipment or cumbersome heating and positioning fixtures often required for temperature dependent testing. The test specimen is heated using a low cost electric resistance tape, which heats the transmitter and incident bars adjacent

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MESPOULET, JEROME, HAKIM ABDULHAMID, MAËLLE PEYRATOUT, and PAUL DECONINCK. "DYNAMIC POLYMERIC FOAM EVALUATION TO MINIMIZE BEHIND ARMOR BLUNT TRAUMA (BABT): FROM MATERIAL CHARACTERIZATION TO SIMULATION VALIDATION." In 32ND INTERNATIONAL SYMPOSIUM ON BALLISTICS. Destech Publications, Inc., 2022. http://dx.doi.org/10.12783/ballistics22/36171.

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This paper deals with the characterization of the dynamic behavior and the damping capability of a polymeric foam that is implemented on soldiers’ chest. Split Hopkinson Pressure Bars (SHPB) experiments have been performed at strain rates ranging from 420 to 5100 s-1. The effect of confinement on the deviatoric behavior of the material has been investigated through unconfined and confined experiments. The damping behavior was studied with the help of ballistic tests. Steel spheres were launched on the foam with an aluminum reference backing. 3D Digital Image Correlation (DIC) with two high spe

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Prabhu, Rajkumar, W. Glenn Steele, M. F. Horstemeyer, et al. "Uncertainty Analysis of the Mechanical Response of Porcine Brain at High Strain Rate Compression." In ASME 2011 Summer Bioengineering Conference. American Society of Mechanical Engineers, 2011. http://dx.doi.org/10.1115/sbc2011-53738.

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The Split-Hopkinson Pressure Bar (SHPB) apparatus presents a unique capability in studying the dynamic response of a material, but it is accompanied with a moderately high noise level, giving a rather large standard deviation for the stress-strain behavior of the soft biological material being tested [1]. Compounding the errors in a SHPB setup is the uncertainty arising from sample-to-sample variability in a soft biological material. Uncertainties arise in a measured variable through a vast number of sources such as an imperfect instrument calibration process, standards used for calibration, a

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Mahfuz, Hassan, Wahid Al Mamun, Hisham Mohamed, Uday Vaidya, Anwarul Haque, and Shaik Jeelani. "High Strain Rate Response of Resin Infusion Molded Sandwich Composites." In ASME 1999 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 1999. http://dx.doi.org/10.1115/imece1999-0909.

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Abstract Foam core sandwich composites have been tested under high strain rate (HSR) loading in the thickness direction. The regular Split Hopkinson Pressure Bar (SHPB) has been modified by replacing the steel transmitter bar by a polycarbonate bar. This modification resulted in stronger signals from the transmitter bar, which would otherwise be very feeble especially when testing soft materials. New sets of mathematical formulations have been derived to account for the impedance mismatch between the incidence and transmitter bars. The modified equations are first verified with a known materia

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MESPOULET, JEROME, HAKIM ABDULHAMID, MAËLLE PEYRATOUT, and PAUL DECONINCK. "APPLICATION OF THE BUILDING BLOCK APPROACH (BBA) FOR LIGHT WEIGHT PERSONAL ARMOUR MATERIALS CALIBRATION." In 32ND INTERNATIONAL SYMPOSIUM ON BALLISTICS. Destech Publications, Inc., 2022. http://dx.doi.org/10.12783/ballistics22/36173.

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This paper presents a lightweight armor structure calibration method. The armor consists of a stacking of two materials: a ceramic tile and a backing made of UHMWPE (Ultra High Molecular Weight Polyethylene) plate. Using a building block approach, each material is characterized separately before studying the response of the resulted structure under ballistic impact. For the ceramic material, Hugoniot and spall parameters are identified using plate impact tests. Then, data from dynamic confined compression tests on SHPB (Split Hopkinson Pressure Bars) are used to complete the model. The charact

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Miller, David A., and Cameron K. Chen. "Application of Advanced Constitutive Models to the Simulation of Machining." In ASME 2009 International Mechanical Engineering Congress and Exposition. ASMEDC, 2009. http://dx.doi.org/10.1115/imece2009-10842.

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Advanced constitutive models have long been used to describe plastic material response at high strains and high strain rates. These models include the Johnson-Cook, Zerrelli-Armstrong and Material Threshold Stress (MTS) formulations, each with a separate fidelity. The constitutive parameters for these complex models are commonly identified using laboratory techniques such as quasi-static load frames at room and elevated temperatures, Split Hopkinson Pressure Bars (SHPB) in tension and compression, gas guns, and Taylor impact cylinders. However, while the models are able to adequately describe

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Thomas, Tonnia, Hassan Mahfuz, Leif A. Carlsson, Krishnan Kanny, and Shaik Jeelani. "High Strain Rate Response of PVC Foams." In ASME 2001 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2001. http://dx.doi.org/10.1115/imece2001/amd-25408.

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Abstract In this study, cross-linked poly-vinylchloride (PVC) closed-cell foams were examined under high strain rate compression loading using a servohydraulic testing machine and a modified Split Hopkinson Pressure Bar (SHPB) apparatus with a steel incident bar and a polycarbonate transmitter bar for strain rates up to 2000 s−1. Three foam densities were examined, viz. 75, 130, and 260 kg/m3. The stress and strain-time history and stress-strain behavior were evaluated. An increase of stress and strain was observed for all categories of foam as strain rate increased. A post impact study was al

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Daniel, Isaac M., and Shiguo Rao. "Dynamic Mechanical Properties and Failure Mechanisms of PVC Foams." In ASME 2000 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2000. http://dx.doi.org/10.1115/imece2000-1957.

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Abstract Two closed-cell PVC foams were characterized at strain rates up to 1000 s−1. Experiments in the strain rate range between 10−4 and 1 s−1 were conducted on a servohydraulic testing machine and those in the range between 1 and 103 s−1 were conducted on a modified Split Hopkinson Pressure Bar (SHPB) apparatus. The striker and input/output pressure bars in the latter were made of polycarbonate (Lexan) instead of metal. The polycarbonate material was tested at different strain rates and found to behave linearly for strain rates up to 1000 s−1. All stress-strain curves show typically five d

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