A study of detonation timing and fragmentation using 3-D finite element techniques and a damage constitutive model
Conference
·
OSTI ID:245540
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.
- Research Organization:
- Sandia National Labs., Albuquerque, NM (United States)
- Sponsoring Organization:
- USDOE, Washington, DC (United States)
- DOE Contract Number:
- AC04-94AL85000
- OSTI ID:
- 245540
- Report Number(s):
- SAND--96-0654C; CONF-960839--1; ON: DE96007052
- Country of Publication:
- United States
- Language:
- English
Similar Records
Application of numerical modelling to practical blast design
Blast control using accurate detonators
Accurate detonators in trials boost production, reduce shock
Conference
·
Thu May 01 00:00:00 EDT 1997
·
OSTI ID:469032
Blast control using accurate detonators
Conference
·
Sat Dec 30 23:00:00 EST 1995
·
OSTI ID:398352
Accurate detonators in trials boost production, reduce shock
Journal Article
·
Mon Mar 31 23:00:00 EST 1986
· Coal Age; (United States)
·
OSTI ID:5786549