Actions for Simulations of Fracture and Fragmentation of Geologic Materials using Combined FEM

Email RIS file
Bookmark
Report an Issue

Simulations of Fracture and Fragmentation of Geologic Materials using Combined FEM/DEM/SPH Analysis [electronic resource].

Published
Washington, D.C. : United States. Dept. of Energy, 2007.
Oak Ridge, Tenn. : Distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy.
Physical Description
PDF-file: 9 pages; size: 0.2 Mbytes
Additional Creators
Lawrence Berkeley National Laboratory, United States. Department of Energy, and United States. Department of Energy. Office of Scientific and Technical Information
Access Online

Availability

I Want It
I Want It

Finding items...

Restrictions on Access
Free-to-read Unrestricted online access
Summary
An overview of the Lawrence Discrete Element Code (LDEC) is presented, and results from a study investigating the effect of explosive and impact loading on geologic materials using the Livermore Distinct Element Code (LDEC) are detailed. LDEC was initially developed to simulate tunnels and other structures in jointed rock masses using large numbers of polyhedral blocks. Many geophysical applications, such as projectile penetration into rock, concrete targets, and boulder fields, require a combination of continuum and discrete methods in order to predict the formation and interaction of the fragments produced. In an effort to model this class of problems, LDEC now includes implementations of Cosserat point theory and cohesive elements. This approach directly simulates the transition from continuum to discontinuum behavior, thereby allowing for dynamic fracture within a combined finite element/discrete element framework. In addition, a Smooth Particle Hydrodynamics (SPH) capability has been incorporated into LDEC, permitting the simulation of fluid-structure interaction. We will present results from a study of detonation-induced fracture and fragmentation of geologic media surrounding a tunnel using LDEC.
Report Numbers
E 1.99:ucrl-conf-229812
ucrl-conf-229812
Subject(s)
Other Subject(s)
Note
Published through SciTech Connect.
04/05/2007.
"ucrl-conf-229812"
Presented at: 4th International Conference on Discrete Element Methods, Brisbane, Australia, Aug 27 - Aug 29, 2007.
Johnson, S M; Morris, J P.
Funding Information
W-7405-ENG-48
View MARC record | catkey: 14378588