Results 171 to 180 of about 3,979 (211)
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Temperature in high temperature SHPB experiments
Transactions of Tianjin University, 2008As an experimental technique, it’s desired that the temperature in specimen is uniform in high temperature split Hopkinson pressure bar (SHPB) experiments. However, the temperature in specimen decreases and the temperature of bars increases when specimen starts to contact with bars, which induces the nonuniform temperature distribution in specimen, and
Zhifang Deng +4 more
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Numerical modelling of SHPB splitting tests
Journal de Physique IV (Proceedings), 2003The Splitting or Brazilian test of disks is a useful method to measure tensile strength on brittle materials. When the tensile stress reaches the tensile strength, the disk fails on the loading plane. Nevertheless, the stress state is not uniaxial, and the material undergoes compressive stresses, normal to the tensile ones.
F. Galvez, V. Sanchez Galvez
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Study of Stress Wave Propagation in SHPB with NHDMOC
Applied Mechanics and Materials, 2013In this paper the NHDMOC method which succeeded in studying stress wave propagation with one dimensional strain was applied to study the one-dimensional stress wave propagation. In this paper, the ZWT nonlinear visco-elastic constitutive relationship with 7 parameters to NHDMOC, and corresponding equations were deduced The equations was verified from ...
Ming Li Xu +2 more
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SHPB Dynamic Experiment on Silica Fume Concrete
Advanced Materials Research, 2013Dynamic mechanical properties of silica fume concrete in a number of strain rate under the conditions of dynamic compression mechanical properties subjected to various strain rates were studied, and gained the stress versus strain curves, details of an experimental investigation using 74 mm-diameter split Hopkinson pressure bar(SHPB) apparatus were ...
Rong Jun Chen, Hong Wei Liu, Rui Zeng
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STUDY OF SMALL DIMENSION SPECIMENS ON SHPB TEST
AIP Conference Proceedings, 2008The feasibility and reliability of small dimension specimen SHPB tests were investigated by numerical simulation and experiments of 2024 aluminium alloy with series of dimension. Also an attempt is made to get curves of strain rate over 104 s−1 by small dimension specimens. Accuracy of transmitted signal in eccentric compression tests of small specimen
Dawu Xiao +7 more
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Investigation of the effects of transverse inertia on SHPB experiments
International Journal of Microstructure and Materials Properties, 2016Due to the Poisson's effect, the effects of transverse inertia in specimen tested on Split Hopkinson Pressure Bar device are induced. Transverse inertia has been recognised as an important factor in dynamic responses of brittle materials. Contact friction generated at interfaces of the specimen and two pressure bars, can confine the dilation in the ...
C. Huang, Pan Wang, Lianqing Yu, Xi Liu
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Compressive Deformation Behaviors of Aluminum Alloy in a SHPB Test
Transactions of the Korean Society of Mechanical Engineers A, 2012Structures are often subjected to various types of loading such as static, dynamic, or impact loading. Therefore, experimental and numerical methods have been employed to find adequate material properties according to the conditions. The Split-Hopkinson pressure bar (SHPB) test has frequently been used to test engineering materials, particularly those ...
Jong-Tak Kim +3 more
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Sensitivity and Uncertainty Analysis of SHPB Tests for Concrete Materials
International Journal of Applied Mechanics, 2016Many researches focus on the effect of interfacial friction on Split Hopkinson Pressure Bar (SHPB) tests of concrete materials, in which SHPB is one of the most widely used techniques for determination of the dynamic stress–strain response. However, except for the interfacial friction, the stress–strain response is also affected by many other ...
Ping Liu, Xu Han, Dean Hu, Chao Jiang
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Dynamic deformation behavior of bovine femur using SHPB
Journal of Mechanical Science and Technology, 2011This paper investigates the dynamic deformation behavior of bovine femur using a modified split Hopkinson pressure bar (SHPB) with a pulse shaper technique. The shape of the incident and reflected pulses modulated by the pulse shaper were measured and compared to each other to find a suitable thickness.
Ouk Sub Lee, Jin Soo Park
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Simulating Wave Propagation in SHPB with Peridynamics
Split Hopkinson’s pressure bar (SHPB) is commonly used for characterizing materials at high strain rates. In obtaining an admissible stress–strain curve at a specific strain rate, force equilibrium through the specimen is required. Due to the blunt collision between the striker bar and the incidence bar in SHPB, a strain wave with a blunt wave front isTao Jia, Dahsin Liu
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