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Improved specimen recovery in tensile split Hopkinson bar [PDF]
Philosophical Transactions Series A, Mathematical, Physical, and Engineering Sciences, 2014 This paper presents an improved specimen recovery method for the tensile split Hopkinson bar (TSHB) technique. The method is based on the trapping of residual stress waves with the use of momentum trap bars. As is well known, successful momentum trapping in TSHB is highly sensitive to experimental uncertainties, especially on the incident bar side of ...
Veli-Tapani Kuokkala, Matti Isakov
exaly +7 more sources
Calibration of a Hopkinson Bar with a Transfer Standard [PDF]
Shock and Vibration, 1993 A program requirement for field test temperatures that are beyond the test accelerometer operational limits of −30° F and +150° F required the calibration of accelerometers at high shock levels and at the temperature extremes of −50° F and +160° F.
Vesta I. Bateman +3 more
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Implementation of viscoelastic Hopkinson bars [PDF]
EPJ Web of Conferences, 2012 Knowledge of the properties of soft, viscoelastic materials at high strain rates are important in furthering our understanding of their role during blast or impact events.
Govender R., Cloete T., Curry R.
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Design and Simulation of Insert to Measure Dynamic Sliding Friction in a Split-Hopkinson Pressure Bar [PDF]
EPJ Web of Conferences, 2021 Interfacial friction is a key aspect to understanding and modelling dynamic processes in which materials interact. However, friction is a complex phenomenon that depends on a multitude of factors, including sliding velocity.
Euser Virginia +4 more
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Dynamic rock tests using split Hopkinson (Kolsky) bar system – A review
Journal of Rock Mechanics and Geotechnical Engineering, 2015 Dynamic properties of rocks are important in a variety of rock mechanics and rock engineering problems. Due to the transient nature of the loading, dynamic tests of rock materials are very different from and much more challenging than their static ...
Kaiwen Xia, Wei Yao
exaly +3 more sources
A Review of the Torsional Split Hopkinson Bar [PDF]
Advances in Civil Engineering, 2018 Mechanical behavior of materials at medium and high strain rates (101∼104 s−1) is the foundation of developing mechanical theories, building material models, and promoting engineering design and construction.
Xiao Yu +4 more
doaj +3 more sources
An overview of methods used in dynamic testing of materials [PDF]
Biuletyn Wojskowej Akademii Technicznej, 2023 The paper presents an elemental description and methodology of tests that take intoaccount the effect of high strain rate on materials strength parameters. The article describes suchtesting methodology as: Taylor test, split Hopkinson pressure bar method,
Adam Jeschke, Robert Panowicz
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Development of an innovative specimen geometry for tensile split Hopkinson tests [PDF]
EPJ Web of Conferences, 2021 Specimen manufacturing is one of the critical issues to solve during a dynamic material characterization, especially by mean of the Hopkinson bar technique. In particular, concerning tensile testing, the sample is generally axisymmetric with two threaded
Peroni Marco +2 more
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Feasibility Study of a Combined Tension-Torsion Hopkinson Bar [PDF]
EPJ Web of Conferences, 2021 The increasing interest to improve the description of the plastic behavior and the fracture prediction for ductile materials under complex loading conditions conducted the researchers to overcome the J2 plasticity theory.
Sasso Marco, Mancini Edoardo
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Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences, 2014 In order to perform experimental identification of high strain rate material models, engineers have only a very limited toolbox based on test procedures developed decades ago. The best example is the so-called split Hopkinson pressure bar based on the bar concept introduced 100 years ago by Bertram Hopkinson to measure blast pulses.
Pierron, F., Zhu, H., Siviour, C.
openaire +4 more sources