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High Temperature Tension HSB Device Based on Direct Electrical Heating

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review

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High Temperature Tension HSB Device Based on Direct Electrical Heating. / Hokka, M.; Östman, K.; Rämö, J.; Kuokkala, V. T.

Dynamic Behavior of Materials, Volume 1: Proceedings of the 2014 Annual Conference on Experimental and Applied Mechanics. ed. / Bo Song; Daniel Casem; Jamie Kimberley. Vol. 65 Springer, 2015. p. 227-233 (Conference Proceedings of the Society for Experimental Mechanics Series).

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review

Harvard

Hokka, M, Östman, K, Rämö, J & Kuokkala, VT 2015, High Temperature Tension HSB Device Based on Direct Electrical Heating. in B Song, D Casem & J Kimberley (eds), Dynamic Behavior of Materials, Volume 1: Proceedings of the 2014 Annual Conference on Experimental and Applied Mechanics. vol. 65, Conference Proceedings of the Society for Experimental Mechanics Series, Springer, pp. 227-233, Society for experimental mechanics annual conference & exposition on experimental and applied mechanics, 1/01/00. https://doi.org/10.1007/978-3-319-06995-1_34

APA

Hokka, M., Östman, K., Rämö, J., & Kuokkala, V. T. (2015). High Temperature Tension HSB Device Based on Direct Electrical Heating. In B. Song, D. Casem, & J. Kimberley (Eds.), Dynamic Behavior of Materials, Volume 1: Proceedings of the 2014 Annual Conference on Experimental and Applied Mechanics (Vol. 65, pp. 227-233). (Conference Proceedings of the Society for Experimental Mechanics Series). Springer. https://doi.org/10.1007/978-3-319-06995-1_34

Vancouver

Hokka M, Östman K, Rämö J, Kuokkala VT. High Temperature Tension HSB Device Based on Direct Electrical Heating. In Song B, Casem D, Kimberley J, editors, Dynamic Behavior of Materials, Volume 1: Proceedings of the 2014 Annual Conference on Experimental and Applied Mechanics. Vol. 65. Springer. 2015. p. 227-233. (Conference Proceedings of the Society for Experimental Mechanics Series). https://doi.org/10.1007/978-3-319-06995-1_34

Author

Hokka, M. ; Östman, K. ; Rämö, J. ; Kuokkala, V. T. / High Temperature Tension HSB Device Based on Direct Electrical Heating. Dynamic Behavior of Materials, Volume 1: Proceedings of the 2014 Annual Conference on Experimental and Applied Mechanics. editor / Bo Song ; Daniel Casem ; Jamie Kimberley. Vol. 65 Springer, 2015. pp. 227-233 (Conference Proceedings of the Society for Experimental Mechanics Series).

Bibtex - Download

@inproceedings{ce79b790ff1e4c4a895b25e442a7a306,
title = "High Temperature Tension HSB Device Based on Direct Electrical Heating",
abstract = "The effects of strain rate and temperature on the mechanical properties of various engineering materials have been extensively studied within the past few decades. However, the high temperature high strain rate tension Hopkinson Split Bar (HSB) testing is still quite challenging to perform due to the need to fix the sample to the stress bars. Mechanical fixing of a sheet material sample is not very convenient and can produce low quality results. Therefore, the sheet samples are typically glued directly to the stress bars. This glue joint, however, loses strength rapidly if the temperature of the glue joint increases above room temperature, which makes the high temperature testing more difficult. In this paper, we present a tension Hopkinson Split Bar device with a high temperature system that allows the sample to be heated while keeping the glue joint at or close to room temperature. The sample is rapidly heated by a powerful low voltage high amperage DC pulse. When testing stainless steels, test temperatures between 400 and 800 °C are reached in less than one second, and even the melting temperature of the material is reached in less than 2 s. The system is fully computer controlled allowing accurate timing and control of the different actions during the test including heating of the sample, pneumatic manipulation of the heating electrodes, releasing of the striker bar, and recording of the test results. The results obtained with the current high temperature system are high quality and the obtained high temperature stress strain curves are essentially oscillation free. {\circledC} The Society for Experimental Mechanics, Inc. 2015.",
keywords = "High strain rate, High temperature, Hopkinson split bar, Stainless steels, Tension testing",
author = "M. Hokka and K. {\"O}stman and J. R{\"a}m{\"o} and Kuokkala, {V. T.}",
note = "siirret{\"a}{\"a}n 2015<br/>Contribution: organisation=mol,FACT1=1<br/>Portfolio EDEND: 2015-01-13</br>publication_forum:72540",
year = "2015",
doi = "10.1007/978-3-319-06995-1_34",
language = "English",
isbn = "978-3-319-06994-4",
volume = "65",
series = "Conference Proceedings of the Society for Experimental Mechanics Series",
publisher = "Springer",
pages = "227--233",
editor = "Bo Song and Daniel Casem and Jamie Kimberley",
booktitle = "Dynamic Behavior of Materials, Volume 1",

}

RIS (suitable for import to EndNote) - Download

TY - GEN

T1 - High Temperature Tension HSB Device Based on Direct Electrical Heating

AU - Hokka, M.

AU - Östman, K.

AU - Rämö, J.

AU - Kuokkala, V. T.

N1 - siirretään 2015<br/>Contribution: organisation=mol,FACT1=1<br/>Portfolio EDEND: 2015-01-13</br>publication_forum:72540

PY - 2015

Y1 - 2015

N2 - The effects of strain rate and temperature on the mechanical properties of various engineering materials have been extensively studied within the past few decades. However, the high temperature high strain rate tension Hopkinson Split Bar (HSB) testing is still quite challenging to perform due to the need to fix the sample to the stress bars. Mechanical fixing of a sheet material sample is not very convenient and can produce low quality results. Therefore, the sheet samples are typically glued directly to the stress bars. This glue joint, however, loses strength rapidly if the temperature of the glue joint increases above room temperature, which makes the high temperature testing more difficult. In this paper, we present a tension Hopkinson Split Bar device with a high temperature system that allows the sample to be heated while keeping the glue joint at or close to room temperature. The sample is rapidly heated by a powerful low voltage high amperage DC pulse. When testing stainless steels, test temperatures between 400 and 800 °C are reached in less than one second, and even the melting temperature of the material is reached in less than 2 s. The system is fully computer controlled allowing accurate timing and control of the different actions during the test including heating of the sample, pneumatic manipulation of the heating electrodes, releasing of the striker bar, and recording of the test results. The results obtained with the current high temperature system are high quality and the obtained high temperature stress strain curves are essentially oscillation free. © The Society for Experimental Mechanics, Inc. 2015.

AB - The effects of strain rate and temperature on the mechanical properties of various engineering materials have been extensively studied within the past few decades. However, the high temperature high strain rate tension Hopkinson Split Bar (HSB) testing is still quite challenging to perform due to the need to fix the sample to the stress bars. Mechanical fixing of a sheet material sample is not very convenient and can produce low quality results. Therefore, the sheet samples are typically glued directly to the stress bars. This glue joint, however, loses strength rapidly if the temperature of the glue joint increases above room temperature, which makes the high temperature testing more difficult. In this paper, we present a tension Hopkinson Split Bar device with a high temperature system that allows the sample to be heated while keeping the glue joint at or close to room temperature. The sample is rapidly heated by a powerful low voltage high amperage DC pulse. When testing stainless steels, test temperatures between 400 and 800 °C are reached in less than one second, and even the melting temperature of the material is reached in less than 2 s. The system is fully computer controlled allowing accurate timing and control of the different actions during the test including heating of the sample, pneumatic manipulation of the heating electrodes, releasing of the striker bar, and recording of the test results. The results obtained with the current high temperature system are high quality and the obtained high temperature stress strain curves are essentially oscillation free. © The Society for Experimental Mechanics, Inc. 2015.

KW - High strain rate

KW - High temperature

KW - Hopkinson split bar

KW - Stainless steels

KW - Tension testing

UR - http://www.scopus.com/inward/record.url?scp=84906319239&partnerID=8YFLogxK

U2 - 10.1007/978-3-319-06995-1_34

DO - 10.1007/978-3-319-06995-1_34

M3 - Conference contribution

SN - 978-3-319-06994-4

VL - 65

T3 - Conference Proceedings of the Society for Experimental Mechanics Series

SP - 227

EP - 233

BT - Dynamic Behavior of Materials, Volume 1

A2 - Song, Bo

A2 - Casem, Daniel

A2 - Kimberley, Jamie

PB - Springer

ER -