Impact modeling with Smooth Particle Hydrodynamics

Conference · Thu Jul 01 00:00:00 EDT 1993

OSTI ID:10167195

Stellingwerf, R F; Wingate, C A

Smooth Particle Hydrodynamics (SPH) can be used to model hypervelocity impact phenomena via the addition of a strength of materials treatment. SPH is the only technique that can model such problems efficiently due to the combination of 3-dimensional geometry, large translations of material, large deformations, and large void fractions for most problems of interest. This makes SPH an ideal candidate for modeling of asteroid impact, spacecraft shield modeling, and planetary accretion. In this paper we describe the derivation of the strength equations in SPH, show several basic code tests, and present several impact test cases with experimental comparisons.

• Research Organization: Los Alamos National Lab., NM (United States)
• Sponsoring Organization: USDOE, Washington, DC (United States)
• DOE Contract Number: W-7405-ENG-36
• OSTI ID: 10167195
• Report Number(s): LA-UR-93-2256; CONF-9307102-1; ON: DE93016561
• Resource Relation: Conference: Smooth particle hydrodynamics in astrophysics OAT workshop,Trieste (Italy),6 Jul 1993; Other Information: PBD: [1993]
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
99 GENERAL AND MISCELLANEOUS//MATHEMATICS, COMPUTING, AND INFORMATION SCIENCE
IMPACT SHOCK
MATHEMATICAL MODELS
HYDRODYNAMICS
VOID FRACTION
DEFORMATION
THREE-DIMENSIONAL CALCULATIONS
IMPACT TESTS
SHIELDING
ASTEROIDS
LAGRANGIAN FUNCTION
COMPUTER CALCULATIONS
661300
990200
OTHER ASPECTS OF PHYSICAL SCIENCE
MATHEMATICS AND COMPUTERS