Computational brittle fracture using smooth particle hydrodynamics

Conference · Tue Oct 01 00:00:00 EDT 1996

OSTI ID:393297

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 SPBM. We describe a new brittle fracture model that we have implemented into SPBM. To illustrate the code`s current capability, we have simulated a number of experiments. We discuss three of these simulations in this paper. The first experiment consists of a brittle steel sphere impacting a plate. The experimental sphere fragment patterns are compared to the calculations. The second experiment is a steel flyer plate in which the recovered steel target crack patterns are compared to the calculated crack patterns. We also briefly describe a simulation of a tungsten rod impacting a heavily confined alumina target, which has been recently reported on in detail.

• 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: 393297
• Report Number(s): LA-UR-96-2840; CONF-9610170-3; ON: DE96014448
• Resource Relation: Conference: 14. US Army symposium on solid mechanics, Myrtle Beach, SC (United States), 16-18 Oct 1996; Other Information: PBD: [1996]
• Country of Publication: United States
• Language: English

Related Subjects

45 MILITARY TECHNOLOGY, WEAPONRY, AND NATIONAL DEFENSE
42 ENGINEERING NOT INCLUDED IN OTHER CATEGORIES
36 MATERIALS SCIENCE
HYDRODYNAMICS
S CODES
STEELS
IMPACT TESTS
FRACTURE MECHANICS
COMPUTERIZED SIMULATION
TUNGSTEN
ALUMINIUM OXIDES
CERAMICS
BRITTLENESS
EMBRITTLEMENT
IMPACT SHOCK
SPHERES
RODS
PLATES
CRACK PROPAGATION
ARMOR
FRACTURE PROPERTIES