Abstract
An innovative Hopkinson pressure bar system for testing the shear response of materials at high strain rates has been developed. A novel single-lap specimen of a polymer bonded explosive (PBX) is used. Instead of strain gauges mounted on the bars, one quartz force transducer is sandwiched between the clamp and the transmission bar to directly measure the weakly loading forces. A laser gap gauge is employed to monitor the shear strain of the specimen, which is based on the luminous flux method. Finite element code ANSYS is used to analyze the stress state in the specimen. Experimental results show that this new method is effective and reliable for determining the shear stress-strain responses of the soft materials at high strain rates.
Access this chapter
Tax calculation will be finalised at checkout
Purchases are for personal use only
Preview
Unable to display preview. Download preview PDF.
References
Wiegand D.A. and Reddingius B., "Mechanical properties of plastic bonded composites as a function of hydrostatic pressure", Shock Compression of Condensed Matter. 812–815 (2003).
Balzer J.E., Siviour C.R., Walley S.M., et al., "Behaviour of ammonium perchlorate-based propellants and a polymerbonded explosive under impact loading", Proceedings of the Royal Society of London Series a-Mathematical Physical and Engineering Sciences. 460(2043): 781–806 (2004).
Blumenthal W.R., Gray G.T., Idar D.J., et al., "Influence of temperature and strain rate on the mechanical behavior of PBX 9502 and Kel-F 800 (TM)", Shock Compression of Condensed Matter-1999, Pts 1 and 2. 505: 671–674 (2000).
Bonthoux F. and Girodon A., "Adaptation of a Hopkinson-Kolsky Apparatus in the Study of Mechanical-Behavior of Explosive Materials Based on Temperature", Journal De Physique. 46(Nc-5): 639–644 (1985).
Cady C.M., Blumenthal W.R., Gray G.T., et al., "Mechanical properties of plastic-bonded explosive binder materials as a function of strain-rate and temperature", Polymer Engineering and Science. 46(6): 812–819 (2006).
Grantham S.G., Siviour C.R., Proud W.G., et al., "High-strain rate Brazilian testing of an explosive simulant using speckle metrology", Measurement Science & Technology. 15(9): 1867–1870 (2004).
Song B. and Chen W., "Dynamic stress equilibration in split Hopkinson pressure bar tests on soft materials", Experimental Mechanics. 44(3): 300–312 (2004).
Song B., Chen W., Antoun B.R., et al., "Determination of early flow stress for ductile specimens at high strain rates by using a SHPB", Experimental Mechanics. 47: 671–679 (2007).
Zhao H., Gary G., and Klepaczko J.R., "On the use of a viscoelastic split Hopkinson pressure bar", International Journal of Impact Engineering. 19(4): 319–330 (1997).
Werner S.M. and Dharan C.K.H., "The daynamic response of graphite fibre-expoxy laminate at high shear strain rate.", J Composite Mater. 20: 365–374 (1986).
Bouette B., Cazeneuve C., and Oytana C., "Effect of strain rate on interlaminar shear properties of carbon/epoxy composites", Composite Science and Technology. 45: 313–321 (1992).
Dong L. and Harding J., "A single-lap shear specimen for determining the effect of strain rate on the interlaminar shear strength of carbon-fibre reinforeced laminates", composites. 25: 129–138 (1994).
Hallett S.R., Ruiz C., and Harding J., "The effect of strain rate on the interlaminar shear strength of a carbon/epoxy crossply laminate : comparison between experiment and numerical prediction", Composite Science and Technology. 59: 749 (1999).
Chen W., Lu F., and Zhou B., "A quartz-crystal-embedded split Hopkinson pressure bar for soft materials", Experimental Mechanics. 40(1): 1–6 (2000).
Song B., Ge Y., Chen W., et al., "Radial inertia effects in kolsky bar testing of extra-soft specimens", Experimental Mechanics. 47: 659–670 (2007).
Author information
Authors and Affiliations
Editor information
Editors and Affiliations
Rights and permissions
Copyright information
© 2011 Springer Science+Businees Media, LLC
About this paper
Cite this paper
Zhao, P.D., Lu, F.Y., Lin, Y.L., Chen, R., Lu, L. (2011). Dynamic shear response of a polymer bonded explosive using a modified Hopkinson bar apparatus. In: Proulx, T. (eds) Experimental and Applied Mechanics, Volume 6. Conference Proceedings of the Society for Experimental Mechanics Series. Springer, New York, NY. https://doi.org/10.1007/978-1-4614-0222-0_28
Download citation
DOI: https://doi.org/10.1007/978-1-4614-0222-0_28
Published:
Publisher Name: Springer, New York, NY
Print ISBN: 978-1-4614-0221-3
Online ISBN: 978-1-4614-0222-0
eBook Packages: EngineeringEngineering (R0)