Results 1 to 10 of about 24,545 (231)

Implementation of viscoelastic Hopkinson bars [PDF]

open access: yesEPJ 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.
doaj   +2 more sources

Beyond Hopkinson's bar [PDF]

open access: yesPhilosophical 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.
Pierron, F., Siviour, C., Zhu, H.
core   +5 more sources

High Strain-Rate Material Model Validation for Laser Peening Simulation [PDF]

open access: yesThe Journal of Engineering, 2015
Finite element modeling can be a powerful tool for predicting residual stresses induced by laser peening; however the sign and magnitude of the stress predictions depend strongly on how the material model captures the high strain rate response.
Kristina Langer   +5 more
doaj   +4 more sources

Electromagnetic Compressive Split Hopkinson Bar [PDF]

open access: yes, 2008
This paper proposes a new design for the compressive split Hopkinson bar that makes use of the intense pressure created in a transient magnetic field formed by the passage of a pulse of electric current through a series of coils.
Martins, P. A. F.   +2 more
core   +3 more sources

Improved specimen recovery in tensile split Hopkinson bar. [PDF]

open access: yesPhilos Trans A Math Phys Eng Sci, 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 ...
Isakov M, Hiermaier S, Kuokkala VT.
europepmc   +5 more sources

Calibration of a Hopkinson Bar with a Transfer Standard [PDF]

open access: yesShock 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
doaj   +2 more sources

Advances in the Hopkinson bar testing of irradiated/non-irradiated nuclear materials and large specimens [PDF]

open access: yesPhilosophical Transactions Series A, Mathematical, Physical, and Engineering Sciences, 2014
A brief review of the technological advances of the Hopkinson bar technique in tension for the study of irradiated/non-irradiated nuclear materials and the development of this technology for large specimens is presented.
Ezio Cadoni
exaly   +3 more sources

Dynamic rock tests using split Hopkinson (Kolsky) bar system – A review

open access: yesJournal 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

Development of a Hopkinson Bar Apparatus for Testing Soft Materials: Application to a Closed-Cell Aluminum Foam. [PDF]

open access: yesMaterials (Basel), 2016
An increasing interest in lightweight metallic foams for automotive, aerospace and other applications has been observed in recent years. This is mainly due to the weight reduction that can be achieved using foams and for their mechanical energy ...
Peroni M, Solomos G, Babcsan N.
europepmc   +3 more sources

A Review of the Torsional Split Hopkinson Bar [PDF]

open access: yesAdvances 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

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