The dynamic friction behaviour of polycarbonate (PC) was investigated at ambient ð26 CÞ and low temperature ðÀ60 CÞ using a split Hopkinson pressure bar (SHPB) and specimens of varying thicknesses. At ambient temperature, polytetrafluoroethylene (PTFE) and molybdenum disulphide ðMoS 2 Þ were found t
Deformation and relaxation studies of polycarbonate using the split Hopkinson pressure bar method
✍ Scribed by Pertti Törmälä; Esko Pääkkönen; Pirkko Kemppainen
- Publisher
- Springer
- Year
- 1981
- Tongue
- English
- Weight
- 333 KB
- Volume
- 16
- Category
- Article
- ISSN
- 0022-2461
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To test weak materials such as foams at high strain rates, the use of a Split Hopkinson Pressure Bar (SH PB) setup made of low impedance bars, which are mostly viscoelastic, is indispensable. In this paper a detailed study of the technical problems of such a viscoelastic setup related to the measure
The potential error due to friction in compression split Hopkinson pressure bar (SHPB) tests is assessed and conditions for minimising this error are investigated. Theoretical friction factors are inferred from ring compression tests. Experimental results are reported for mild steel, copper and alum