Results 21 to 30 of about 1,369 (158)
Engineering Transactions, 2011 Summary: The objective of this work is to develop a technique for reliable comparison of simulations with SHPB data in order to validate material models for ``soft'' materials such as polymers. Comparison with an output stress-strain curve is not sufficient since there are many assumptions built into this analysis.
P. CHURCH +3 more
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A Numerical Investigation of Deformed Region in Plate Specimen of Split-Hopkinson Tensile Bar [PDF]
한국정밀공학회지In Hopkinson bar theory, stress, strain, and strain rate can be determined by analyzing the dimensions of the specimen. When conducting Split-Hopkinson Pressure Bar (SHPB) experiments, the stress-strain curve is obtained by considering the entire length ...
Byeongjin Park, Yeon-Bok Kim, Jeong Kim
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IOP Conference Series: Materials Science and Engineering, 2020 Abstract This paper presents design and development of split Hopkinson pressure bar (SHPB) indigenously for testing of different materials at high deformation rate. SHPB is capable to measure the deformation rate 100s-1 to 2,000s-1, by maintaining the uniform and uni-axial stress in the samples.
M Bilal Nutkani +3 more
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EPJ Web of Conferences, 2015 In dynamic testing of concrete-like materials, there is a need in distinguishing structural effects from genuine strain-rate effects. In this paper, this generic problem is studied by numerical simulations based on a phenomenological material model ...
Flores-Johnson E.A., Li Q.M.
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A waveform modification method for testing dynamic properties of rock under high temperature
Journal of Rock Mechanics and Geotechnical Engineering, 2021 In this study, a waveform modification method was proposed using a self-designed heating device combined with the split Hopkinson pressure bar (SHPB) technique for determination of dynamic behaviors of rock at high temperature.
Tubing Yin +3 more
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Journal of Rock Mechanics and Geotechnical Engineering, 2020 Layered rock mass of significant strength changes for adjacent layers is frequently observed in underground excavation, and dynamic loading is a prevalent scenario generated during excavation.
Sen Wen +3 more
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Data processing of wave propagation in viscoelastic split Hopkinson pressure bar
AIP Advances, 2022 In this study, the polymethyl methacrylate (PMMA) bar was taken as an example to study the data processing of the viscoelastic Split Hopkinson pressure bar (SHPB) during shock wave propagation.
Jiangping Chen +3 more
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High strain rate compression testing of glass fibre reinforced polypropylene
EPJ Web of Conferences, 2012 This paper details an investigation of the high strain rate compression testing of GFPP with the Split Hopkinson Pressure Bar (SHPB) in the through-thickness and in-plane directions.
Cloete T.J. +3 more
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An Experimental Investigation into Wear Resistance of Mg-SiC Nanocomposite Produced at High Rate of Compaction [PDF]
Journal of Stress Analysis, 2018 The Mg-SiC nanocomposite specimens were produced at low strain rate of 8×10−3s−1 using a universal INSTRON testing machine, strain rate of about 8×102s−1 using a drop hammer and at strain rate of about 1.6×103s−1 employing a Split Hopkinson Pressure Bar (
G.H. Majzoobi, K. Rahmani, A. Atrian
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Deep Underground Science and Engineering, EarlyView.Seismic waves with tensile stress, high amplitude, and low frequency are most likely to trigger block instability and sliding. Blocks with a single sliding surface are more prone to movement than those with multiple constraints, and roof‐positioned blocks are especially vulnerable to slide.
Xiao Wang +4 more
wiley +1 more source