© 2014. Shishay Amare Gebremeskel, Neelanchali Asija, Aryan Priyanshu, Hemant Chouhan & Naresh Bhatnagar. This is a
research/review paper, distributed under the terms of the Creative Commons Attribution-Noncommercial 3.0 Unported License
http://creativecommons.org/licenses/by-nc/3.0/), permitting all non commercial use, distribution, and reproduction inany medium,
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Global Journal of Researches in Engineering: A
Mechanical and Mechanics Engineering
Volume 14 Issue 7 Version 1.0 Year 2014
Type: Double Blind Peer Reviewed International Research Journal
Publisher: Global Journals Inc. (USA)
Online ISSN: 2249-4596 & Print ISSN: 0975-5861
Design Customization and Development of Split Hopkinson
Pressure Bar for Light and Soft Armour Materials
By Shishay Amare Gebremeskel, Neelanchali Asija, Aryan Priyanshu,
Hemant Chouhan & Naresh Bhatnagar
Indian Institute of Technology Delhi, India
Abstract- In order to face the grand challenge of characterizing soft and light armour material
system shaving polymers and shear thickening fluids under impacts at high strain rates lead to
design and development of this particular SHPB set up. The developed set up is designed for a
maximum firing pressure of 300 bar of nitrogen gas and it comprises automated gas filling and
firing, striker bar velocity recording and data acquisition system. Pressure bars are made of
titanium alloy due to its high yield strength and reasonably lower density which could protect
plastic deformation, wave dispersion and reduces impedance mismatch with the intended soft
specimens, unlike maraging steel bars. The maximum stresses on the critical parts of the setup
are crosschecked with simulation results and compared with corresponding yield strengths.
Velocity-pressure calibration of the developed setup shows higher velocities can be achieved at
any particular pressure, when it is compared with the existing public domain velocity calibration
of SHPB setup.
Keywords: split hopkinson pressure bar, high strain rate impact, armour, customized design,
simulation.
GJRE-A Classification : FOR Code:
DesignCustomizationandDevelopmentofSplitHopkinsonPressureBarforLightandSoftArmourMaterials
Strictly as per the compliance and regulations of:
091399p