A Caltech Library Service

An Efficient Adaptive Procedure for Three-Dimensional Fragmentation Simulations

Pandolfi, A. and Ortiz, M. (2001) An Efficient Adaptive Procedure for Three-Dimensional Fragmentation Simulations. ASCI Technical Report, ASCI-TR145. . (Unpublished)

[img] PDF - Accepted Version
See Usage Policy.


Use this Persistent URL to link to this item:


We present a simple set of data structures, and a collection of methods for constructing and updating the structures, designed to support the use of cohesive elements in simulations of fracture and fragmentation. Initially, all interior faces in the triangulation are perfectly coherent, i.e. conforming in the usual finite element sense. Cohesive elements are inserted adaptively at interior faces when the effective traction acting on those faces reaches the cohesive strength of the material. The insertion of cohesive elements changes the geometry of the boundary and, frequently, the topology of the model as well. The data structures and methods presented here are straightforward to implement, and enable the efficient tracking of complex fracture and fragmentation processes. The efficiency and versatility of the approach is demonstrated with the aid of two examples of application to dynamic fracture.

Item Type:Report or Paper (Technical Report)
Related URLs:
URLURL TypeDescription ItemJournal Article
Pandolfi, A.0000-0002-7084-7456
Ortiz, M.0000-0001-5877-4824
Additional Information:The support of the Army Research Office through grant DAA-H04-96-1-0056 is gratefully acknowledged. We are also grateful for support provided by the DoE through Caltech’s ASCI/ASAP Center for the Simulation of the Dynamic Behavior of Solids. The assistance provided by Dr. Rena Chengxiang Yu with the numerical examples is gratefully acknowledged.
Group:Accelerated Strategic Computing Initiative, GALCIT
Funding AgencyGrant Number
Army Research Office (ARO)DAA-H04-96-1-0056
Department of Energy (DOE)UNSPECIFIED
Series Name:ASCI Technical Report
Issue or Number:ASCI-TR145
Record Number:CaltechAUTHORS:20230210-225443504
Persistent URL:
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:119213
Deposited By: George Porter
Deposited On:11 Feb 2023 00:08
Last Modified:11 Feb 2023 00:08

Repository Staff Only: item control page