Simulation of a ceramic impact experiment using the SPHINX smooth particle hydrodynamics code

Conference · Thu Aug 01 00:00:00 EDT 1996

OSTI ID:266913

Mandell, D A; Wingate, C A; Schwalbe, L A

We are developing statistically based, brittle-fracture models and are implementing them into hydrocodes that can be used for designing systems with components of ceramics, glass, and/or other brittle materials. Because of the advantages it has simulating fracture, we are working primarily with the smooth particle hydrodynamics code SPHINX. We describe a new brittle fracture model that we have implemented into SPHINX, and we discuss how the model differs from others. To illustrate the code`s current capability, we simulate an experiment in which a tungsten rod strikes a target of heavily confined ceramic. Simulations in 3D at relatively coarse resolution yield poor results. However, 2D plane-strain approximations to the test produce crack patterns that are strikingly similar to the data, although the fracture model needs further refinement to match some of the finer details. We conclude with an outline of plans for continuing research and development.

• Research Organization: Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
• Sponsoring Organization: Department of Defense, Washington, DC (United States)
• DOE Contract Number: W-7405-ENG-36
• OSTI ID: 266913
• Report Number(s): LA-UR-96-1878; CONF-960982-2; ON: DE96012625; TRN: 96:004393
• Resource Relation: Conference: 16. international symposium on ballistics, San Francisco, CA (United States), 23-28 Sep 1996; Other Information: PBD: 1996
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
99 MATHEMATICS
COMPUTERS
INFORMATION SCIENCE
MANAGEMENT
LAW
MISCELLANEOUS
45 MILITARY TECHNOLOGY, WEAPONRY, AND NATIONAL DEFENSE
ALUMINIUM OXIDES
FRACTURE PROPERTIES
MECHANICAL PROPERTIES
S CODES
MILITARY EQUIPMENT
PERFORMANCE
CERAMICS
SIMULATION
BRITTLENESS
IMPACT STRENGTH
ARMOR
YIELD STRENGTH
SHEAR