Penetration of concrete targets

Technical Report · Sun Aug 01 04:00:00 EDT 1993

DOI:https://doi.org/10.2172/10180160· OSTI ID:10180160

Forrestal, M J ^[1]; Cargile, J D ^[2]; Tzou, R D.Y. ^[3]

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1. Sandia National Labs., Albuquerque, NM (United States)
2. Corps of Engineers, Vicksburg, MS (United States). Waterways Experiment Station
3. New Mexico Univ., Albuquerque, NM (United States). Dept. of Mechanical Engineering

We developed penetration equations for ogive-nosed projectiles that penetrated concrete targets after normal impact. Our penetration equations predict axial force on the projectile nose, rigid-body motion, and final penetration depth. For target constitutive models, we conducted triaxial material experiments to confining pressures of 600 MPa and curve-fit these data with a linear pressure-volumetric strain relation and with a linear Mohr-Coulomb, shear strength-pressure relation. To verify our penetration equations, we conducted eleven penetration experiments with 0.90 kg, 26.9-mm-diameter, ogive-nosed projectiles into 1.37-m-diameter concrete targets with unconfined compressive strengths between 32-40 MPa. Predictions from our penetration equation are compared with final penetration depth measurements for striking velocities between 280--800 m/s.

• Research Organization: Sandia National Labs., Albuquerque, NM (United States)
• Sponsoring Organization: USDOE, Washington, DC (United States); Department of Defense, Washington, DC (United States)
• DOE Contract Number: AC04-76DP00789
• OSTI ID: 10180160
• Report Number(s): SAND--92-2513C; CONF-931121--16; ON: DE93019076
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360603
45 MILITARY TECHNOLOGY, WEAPONRY, AND NATIONAL DEFENSE
450000
COMPRESSION STRENGTH
CONCRETES
EXPERIMENTAL DATA
MASS
MATHEMATICAL MODELS
MECHANICAL PROPERTIES
MILITARY TECHNOLOGY, WEAPONRY, AND NATIONAL DEFENSE
PENETRATORS
PROJECTILES
STRAINS
TARGETS
TESTING
VELOCITY