A study of detonation timing and fragmentation using 3-D finite element techniques and a damage constitutive model [electronic resource].

Published: Washington, D.C. : United States. Dept. of Energy, 1996.
Oak Ridge, Tenn. : Distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy.
Physical Description: 10 pages : digital, PDF file
Additional Creators: Sandia National Laboratories, United States. Department of Energy, and United States. Department of Energy. Office of Scientific and Technical Information

Access Online

www.osti.gov

Availability

Finding items...

Restrictions on Access

Free-to-read Unrestricted online access

Summary

The transient dynamics finite element computer program, PRONTO-3D, has been used in conjunction with a damage constitutive model to study the influence of detonation timing on rock fragmentation during blasting. The primary motivation of this study is to investigate the effectiveness of precise detonators in improving fragmentation. PRONTO-3D simulations show that a delay time of 0.0 sec between adjacent blastholes results in significantly more fragmentation than a 0.5 ms delay.

Report Numbers

E 1.99:sand--96-0654c
E 1.99: conf-960839--1
conf-960839--1
sand--96-0654c

Subject(s)

Other Subject(s)

Note

Published through SciTech Connect.
03/01/1996.
"sand--96-0654c"
" conf-960839--1"
"DE96007052"
5. international symposium on rock fragmentation by blasting, Montreal (Canada), 25-29 Aug 1996.
Thorne, B.J.; Preece, D.S.

Funding Information

AC04-94AL85000

View MARC record | catkey: 14113247