MESA 3-D calculations of armor penetration by projectiles with combined obliquity and yaw

Conference · Sun Jan 01 00:00:00 EST 1989

DOI:https://doi.org/10.1016/0734-743X(90)90050-6· OSTI ID:5372080

Cagliostro, D J; Mandell, D A; Schwalbe, L A; Adams, T F; Chapyak, E J ^[1]

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1. Los Alamos National Lab., NM (USA)

We introduce and briefly describe MESA, a new 3-D hydrodynamic code, developed specifically for simulations of armor and anti-armor systems. The code's current capabilities an its planned model improvements and additions are discussed. An Eulerian code using state-of-the-art numerical methods, MESA runs faster and is less affected by spurious numerical diffusion than older codes. It models hydrodynamic flow and the dynamic deformation of solid materials. It uses simple elastic-perfectly plastic material strength models as well as models with strain and strainrate hardening and thermal softening. Future versions will incorporate advanced fracture models. It treats detonations in explosives using a programmed burn. The code's current capabilities are illustrated with simulations of experiments on yawed rods obliquely impacting armor plates at 1.29 km/s. 12 refs., 14 figs.

• Research Organization: Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)
• Sponsoring Organization: USDOD
• DOE Contract Number: W-7405-ENG-36
• OSTI ID: 5372080
• Report Number(s): LA-UR-89-2342; CONF-891214-3; ON: DE89015265
• Resource Relation: Journal Volume: 10; Journal Issue: 1-4; Conference: Hypervelocity impact symposium, San Antonio, TX (USA), 12-14 Dec 1989
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
99 GENERAL AND MISCELLANEOUS//MATHEMATICS, COMPUTING, AND INFORMATION SCIENCE
ARMOR
COMPUTERIZED SIMULATION
CRAY COMPUTERS
DEFORMATION
IMPACT STRENGTH
IMPACT TESTS
M CODES
PROJECTILES
SOLIDS
THREE-DIMENSIONAL CALCULATIONS
TRAJECTORIES
COMPUTER CODES
COMPUTERS
MATERIALS TESTING
MECHANICAL PROPERTIES
MECHANICAL TESTS
SIMULATION
TESTING
420200* - Engineering- Facilities
Equipment
& Techniques
990200 - Mathematics & Computers