Poncelet coefficients of granular media

Stephan Bless, Bobby Peden, Ivan Guzman, Mehdi Omidvar, Magued Iskander

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

We have developed a new technique for precise measurement of deceleration of projectiles in sand. It uses a PDV to observe the back of a sphere. Impacts were conducted up to 300 m/s, and trajectories were observed for more than 10 projectile diameters. The precise measurements allow us to calculate Poncelet parameters for spheres in dry and saturated sand and fused quartz. We find that the coefficients needed to describe the data change at about 100 m/s, and Poncelet values that give accurate estimates of deceleration will usually fail to predict ultimate penetration depth. For comparing materials, we find sand is harder to penetrate than fused quartz. Dense materials are harder to penetrate than less dense materials. Dry materials are harder to penetrate than saturated materials.

Original languageEnglish (US)
Title of host publicationDynamic Behavior of Materials - Proceedings of the 2013 Annual Conference on Experimental and Applied Mechanics
Pages373-380
Number of pages8
Volume1
DOIs
StatePublished - 2014
Event2013 Annual Conference on Experimental and Applied Mechanics - Lombard, IL, United States
Duration: Jun 3 2013Jun 5 2013

Other

Other2013 Annual Conference on Experimental and Applied Mechanics
CountryUnited States
CityLombard, IL
Period6/3/136/5/13

Fingerprint

Sand
Deceleration
Projectiles
Quartz
Trajectories

Keywords

  • Granular materials
  • PDV
  • Poncelet
  • Sand

ASJC Scopus subject areas

  • Engineering(all)
  • Computational Mechanics
  • Mechanical Engineering

Cite this

Bless, S., Peden, B., Guzman, I., Omidvar, M., & Iskander, M. (2014). Poncelet coefficients of granular media. In Dynamic Behavior of Materials - Proceedings of the 2013 Annual Conference on Experimental and Applied Mechanics (Vol. 1, pp. 373-380) https://doi.org/10.1007/978-3-319-00771-7_45

Poncelet coefficients of granular media. / Bless, Stephan; Peden, Bobby; Guzman, Ivan; Omidvar, Mehdi; Iskander, Magued.

Dynamic Behavior of Materials - Proceedings of the 2013 Annual Conference on Experimental and Applied Mechanics. Vol. 1 2014. p. 373-380.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Bless, S, Peden, B, Guzman, I, Omidvar, M & Iskander, M 2014, Poncelet coefficients of granular media. in Dynamic Behavior of Materials - Proceedings of the 2013 Annual Conference on Experimental and Applied Mechanics. vol. 1, pp. 373-380, 2013 Annual Conference on Experimental and Applied Mechanics, Lombard, IL, United States, 6/3/13. https://doi.org/10.1007/978-3-319-00771-7_45
Bless S, Peden B, Guzman I, Omidvar M, Iskander M. Poncelet coefficients of granular media. In Dynamic Behavior of Materials - Proceedings of the 2013 Annual Conference on Experimental and Applied Mechanics. Vol. 1. 2014. p. 373-380 https://doi.org/10.1007/978-3-319-00771-7_45
Bless, Stephan ; Peden, Bobby ; Guzman, Ivan ; Omidvar, Mehdi ; Iskander, Magued. / Poncelet coefficients of granular media. Dynamic Behavior of Materials - Proceedings of the 2013 Annual Conference on Experimental and Applied Mechanics. Vol. 1 2014. pp. 373-380
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