Ballistic and material tests and simulations on ultra-high performance concrete

Sidney Chocron, Alexander Carpenter, Nikki Scott, Oren Spector, Alon Malka-Markovitz, Zev Lovinger, Doron Havazelet

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

2 Scopus citations

Abstract

Ultra-high performance concretes (UHPC), meaning concretes with compressive strengths above 150 MPa (B-150), introduce improved properties such as stiffness, compressive strength, and post-failure compliance as compared to standard concretes. Advantages are shown in standard applications of construction, yet, a large potential exists in applications of protective structures to withstand impulsive loadings of blast or direct impact. In this work an UHPC with a compression strength of 200 MPa was used to test and develop a material model to enable predictions for impact and penetration. The material was first tested to characterize the material behavior under quasistatic loading in torsion, compression and triaxial compression, up to confinement pressures of 500 MPa. Moreover, the UHPC was characterized under dynamic loading, using a Kolsky bar (Split Hopkinson Pressure Bar). Based on these lab-scale tests, a Johnson-Holmquist material model was calibrated for the numerical simulations. Finally, ballistic tests were performed with two projectile geometries, using two configurations: a standalone UHPC panel to obtain the ballistic limit, and depth of penetration (DOP) measurements, with aluminum backing, to better relate to the concrete strength during penetration conditions. Preliminary ballistic computations with the UHPC model, calibrated from the lab-scale tests for LS-DYNA, provided good predictions when compared to most of the tests.

Original languageEnglish
Title of host publicationDynamic Behavior of Materials, Volume 1 - Proceedings of the 2018 Annual Conference on Experimental and Applied Mechanics
EditorsJamie Kimberley, Leslie Elise Lamberson, Steven Mates
PublisherSpringer Science and Business Media, LLC
Pages189-194
Number of pages6
ISBN (Print)9783319950884
DOIs
StatePublished - 1 Jan 2019
Externally publishedYes
EventSEM Annual Conference and Exposition on Experimental and Applied Mechanics, 2018 - Greenville, United States
Duration: 4 Jun 20187 Jun 2018

Publication series

NameConference Proceedings of the Society for Experimental Mechanics Series
ISSN (Print)2191-5644
ISSN (Electronic)2191-5652

Conference

ConferenceSEM Annual Conference and Exposition on Experimental and Applied Mechanics, 2018
Country/TerritoryUnited States
CityGreenville
Period4/06/187/06/18

Keywords

  • Ballistic impact
  • Computer simulations
  • High strain-rate material properties
  • Ultra-high performance concrete

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