Abstract
The paper presents numerical simulation results on fracture of a concrete block due to dynamic explosive loads applied to the walls of a blast hole. Considered in the study is the influence of the pulse shape and rock properties on the pattern of irreversible deformation and cracking. It is found that a fractured zone bounded by a plastically deformed contour always arises around the explosion site. Comparison of elastoplastic deformation and fracture induced in the concrete block by explosion pulses of different durations and amplitudes shows that shorter pulses with higher amplitudes and steeper rise times provide a higher blasting efficiency.
Original language | English |
---|---|
Title of host publication | Advanced Materials with Hierarchical Structure for New Technologies and Reliable Structures |
Publisher | American Institute of Physics Inc. |
Volume | 1683 |
ISBN (Electronic) | 9780735413306 |
DOIs | |
Publication status | Published - 27 Oct 2015 |
Event | International Conference on Advanced Materials with Hierarchical Structure for New Technologies and Reliable Structures 2015 - Tomsk, Russian Federation Duration: 21 Sep 2015 → 25 Sep 2015 |
Conference
Conference | International Conference on Advanced Materials with Hierarchical Structure for New Technologies and Reliable Structures 2015 |
---|---|
Country | Russian Federation |
City | Tomsk |
Period | 21.9.15 → 25.9.15 |
ASJC Scopus subject areas
- Physics and Astronomy(all)