A crossbow system for high-strain-rate mechanical testing
This paper describes a technique developed to measure the uniaxial compressive stress - strain properties of polymers at strain rates appropriate to ballistic and impact events over time scales of tens of microseconds using a crossbow as the projectile launch system. The instrument constructed repre...
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Institute of Physics
1996
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Online Access: | http://psasir.upm.edu.my/id/eprint/38566/1/0001.pdf http://psasir.upm.edu.my/id/eprint/38566/7/S_Hamdan_1996_Meas._Sci._Technol._7_1068.pdf http://psasir.upm.edu.my/id/eprint/38566/ |
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my.upm.eprints.385662024-08-07T00:17:31Z http://psasir.upm.edu.my/id/eprint/38566/ A crossbow system for high-strain-rate mechanical testing Hamdan, S. Swallowe, G. M. This paper describes a technique developed to measure the uniaxial compressive stress - strain properties of polymers at strain rates appropriate to ballistic and impact events over time scales of tens of microseconds using a crossbow as the projectile launch system. The instrument constructed represents a novel development of existing equipment types. The system is used for compression testing giving stress - strain measurements at strain rates of up to 10⁴ s⁻¹ and over a temperature range of 20-200°c . Stress is calculated directly from a measured force obtained from a calibrated pressure bar. Strain is calculated from the sample displacement measured directly from the intensity reduction of a laser-photodiode unit. The crossbow system provides a relatively inexpensive, reliable and compact alternative to a standard Hopkinson bar. Institute of Physics 1996 Article PeerReviewed text en http://psasir.upm.edu.my/id/eprint/38566/1/0001.pdf text en http://psasir.upm.edu.my/id/eprint/38566/7/S_Hamdan_1996_Meas._Sci._Technol._7_1068.pdf Hamdan, S. and Swallowe, G. M. (1996) A crossbow system for high-strain-rate mechanical testing. Measurement Science and Technology, 7 (7). pp. 1068-1072. ISSN 0957-0233; ESSN: 1361-6501 10.1088/0957-0233/7/7/011 |
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This paper describes a technique developed to measure the uniaxial compressive stress - strain properties of polymers at strain rates appropriate to ballistic and impact events over time scales of tens of microseconds using a crossbow as the projectile launch system. The instrument constructed represents a novel development of existing equipment types. The system is used for compression testing giving stress - strain measurements at strain rates of up to 10⁴ s⁻¹ and over a temperature range of 20-200°c . Stress is calculated directly from a measured force obtained from a calibrated pressure bar. Strain is calculated from the sample displacement measured directly from the intensity reduction of a laser-photodiode unit. The crossbow system provides a relatively inexpensive, reliable and compact alternative to a standard Hopkinson bar. |
format |
Article |
author |
Hamdan, S. Swallowe, G. M. |
spellingShingle |
Hamdan, S. Swallowe, G. M. A crossbow system for high-strain-rate mechanical testing |
author_facet |
Hamdan, S. Swallowe, G. M. |
author_sort |
Hamdan, S. |
title |
A crossbow system for high-strain-rate mechanical testing |
title_short |
A crossbow system for high-strain-rate mechanical testing |
title_full |
A crossbow system for high-strain-rate mechanical testing |
title_fullStr |
A crossbow system for high-strain-rate mechanical testing |
title_full_unstemmed |
A crossbow system for high-strain-rate mechanical testing |
title_sort |
crossbow system for high-strain-rate mechanical testing |
publisher |
Institute of Physics |
publishDate |
1996 |
url |
http://psasir.upm.edu.my/id/eprint/38566/1/0001.pdf http://psasir.upm.edu.my/id/eprint/38566/7/S_Hamdan_1996_Meas._Sci._Technol._7_1068.pdf http://psasir.upm.edu.my/id/eprint/38566/ |
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1806701233964056576 |
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13.18916 |