Visualizing the fundamental physics of rapid earth penetration using transparent soils

Zhibo Chen, Mehdi Omidvar, Magued Iskander, Stephan Bless

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

Abstract

In this paper, rapid penetration into soils is studied using reduced scale tests. Refractive index-matched fused quartz, with geotechnical properties closely mimicking those of natural angular sands, is used as the target media. Penetration tests are performed by accelerating a conical rod into the soil target. Meso-scale kinematic interactions are probed during penetration by means of high speed imaging. An embedded plane of dyed fused quartz within the sample allows observations of soil deformation during the penetration. The images are analyzed using digital image correlation. The analyses suggest that soil velocity in the soil-projectile interaction zone decays rapidly with distance from the projectile, diminishing to zero within 4 diameters of the penetrator.

Original languageEnglish (US)
Title of host publicationIFCEE 2015 - Proceedings of the International Foundations Congress and Equipment Expo 2015
EditorsJ. Brian Anderson, Magued Iskander, Muhannad T. Suleiman, Debra F. Laefer
PublisherAmerican Society of Civil Engineers (ASCE)
Pages2617-2626
Number of pages10
ISBN (Electronic)9780784479087
DOIs
StatePublished - 2015
EventInternational Foundations Congress and Equipment Expo 2015, IFCEE 2015 - San Antonio, United States
Duration: Mar 17 2015Mar 21 2015

Publication series

NameGeotechnical Special Publication
VolumeGSP 256
ISSN (Print)0895-0563

Other

OtherInternational Foundations Congress and Equipment Expo 2015, IFCEE 2015
CountryUnited States
CitySan Antonio
Period3/17/153/21/15

ASJC Scopus subject areas

  • Civil and Structural Engineering
  • Architecture
  • Building and Construction
  • Geotechnical Engineering and Engineering Geology

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  • Cite this

    Chen, Z., Omidvar, M., Iskander, M., & Bless, S. (2015). Visualizing the fundamental physics of rapid earth penetration using transparent soils. In J. B. Anderson, M. Iskander, M. T. Suleiman, & D. F. Laefer (Eds.), IFCEE 2015 - Proceedings of the International Foundations Congress and Equipment Expo 2015 (pp. 2617-2626). (Geotechnical Special Publication; Vol. GSP 256). American Society of Civil Engineers (ASCE). https://doi.org/10.1061/9780784479087.243