Numerical Simulation of High-Speed Penetration of Munitions in Clay

Boules N. Morkos, Rachel White, Mehdi Omidvar, Magued Iskander, Stephan Bless

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


This study presents the findings of a 3D explicit finite element analysis exploring the effect of nose shape on the depth of burial (DoB) of projectiles in cohesive soil. Large deformation finite element (LDFE) analyses were performed using the commercial finite element code ABAQUS. Euler and Lagrange element interactions were captured using the coupled Eulerian-Lagrangian (CEL) algorithm. Ogive projectiles with various caliber radius heads (CRH), ranging from 9 to 11, dynamically impacted a clay target at an impact velocity of 200 m/s. A constitutive model comprising a Tresca soil model that accounted for strain softening and strain-rate dependency of shear strength through the Herschel-Bulkley model was employed. The results of the simulations were used to calibrate a phenomenological penetration model for predicting the depth of burial of projectiles in soils. The two fitting parameters of the phenomenological model were the drag coefficient C, and the bearing coefficient R, both of which were assumed to be constants. It was found that varying the ogive CRH within the ranges studied resulted in minimal change in the drag coefficient. Furthermore, the DoB was not significantly affected by these variations in the CRH. The bearing coefficient R was found to be constant for all ogives. It was concluded that the DoB was not sensitive to minor changes in the nose shape of ogive ordnances in clayey soils.

Original languageEnglish (US)
Title of host publicationGeotechnical Special Publication
EditorsT. Matthew Evans, Nina Stark, Susan Chang
PublisherAmerican Society of Civil Engineers (ASCE)
Number of pages10
EditionGSP 352
ISBN (Electronic)9780784485309, 9780784485316, 9780784485323, 9780784485330, 9780784485347, 9780784485354
StatePublished - 2024
EventGeo-Congress 2024: Geotechnical Data Analysis and Computation - Vancouver, Canada
Duration: Feb 25 2024Feb 28 2024

Publication series

NameGeotechnical Special Publication
NumberGSP 352
ISSN (Print)0895-0563


ConferenceGeo-Congress 2024: Geotechnical Data Analysis and Computation

ASJC Scopus subject areas

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


Dive into the research topics of 'Numerical Simulation of High-Speed Penetration of Munitions in Clay'. Together they form a unique fingerprint.

Cite this