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The Hopkinson pressure bar: an alternative to the instrumented pendulum for Charpy tests

✍ Scribed by C. Ruiz; R. A. W. Mines

Book ID
104615997
Publisher
Springer Netherlands
Year
1985
Tongue
English
Weight
496 KB
Volume
29
Category
Article
ISSN
1573-2673

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✦ Synopsis

In the instrumented Charpy pendulum, strain gauges mounted on the hammer react to strain waves resulting from the impact against the specimen by providing a jagged strain-time trace. This is electronically filtered to provide a smooth curve taken to represent the variation with time of the load applied to the specimen. The Hopkinson pressure bar (HPB) described here provides an alternative method of testing that does not require electronic filtering and simplifies data collection and interpretation.

πŸ“œ SIMILAR VOLUMES

An experimental assessment of friction e
An experimental assessment of friction effects in the split Hopkinson pressure bar using the ring compression test
✍ R.S. Hartley; T.J. Cloete; G.N. Nurick πŸ“‚ Article πŸ“… 2007 πŸ› Elsevier Science 🌐 English βš– 621 KB

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