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Title: Modeling partially coupled objects with smooth particle hydrodynamics

Modeling partially coupled objects with smooth particle hydrodynamics A very simple phenomenological model is presented to model objects that are partially coupled (i.e. welded or bonded) where usually the coupled interface is weaker than the bulk material. The model works by letting objects fully interact in compression and having the objects only partially interact in tension. A disconnect factor is provided to adjust the tensile interaction to simulate coupling strengths. Three cases of an example impact calculation are shown-no coupling, full coupling and partial coupling.
Authors:
Publication Date:
OSTI Identifier:OSTI ID: 380314
Report Number(s):LA-UR--96-3131
ON: DE97000477; TRN: 96:005738
DOE Contract Number:W-7405-ENG-36
Resource Type:Technical Report
Resource Relation:Other Information: PBD: [1996]
Research Org:Los Alamos National Lab., NM (United States)
Sponsoring Org:Department of Defense, Washington, DC (United States)
Country of Publication:United States
Language:English
Subject: 42 ENGINEERING NOT INCLUDED IN OTHER CATEGORIES; 66 PHYSICS; WELDED JOINTS; HYDRODYNAMICS; FLOW MODELS; INTERFACES; EQUATIONS OF MOTION; COMPRESSION; COMPUTERIZED SIMULATION