WebNov 2, 2024 · Rock fracture process by blasts in an infinite rock mass (a) or a rock mass with one free surface (b) (after Kutter and Fairhurst, 1971). (a) Fracture pattern of a fully contained explosion. (b) Stress wave … WebMar 16, 2024 · After the dynamic impact tests, flawed rock specimens are fractured into small fragments and debris, and thus the sieve tests are required for analyzing rock fragmentation characteristics (Feng et al. 2024 ). The mean fragment size ( d_ {m}) is defined to characterize the rock fragmentation degree by Eq. ( 7 ).
A constitutive model for the dynamic response of brittle materials
WebThe dynamic fragmentation of rock within rock avalanches is examined using the fragmentation concepts introduced by Grady and co-workers. The analyses use … WebJun 4, 1998 · Grady and M. E. Kipp, “Dynamic Rock Fragmentation,” Sandia National Laboratories Report No. SAND84‐2456J (1984). Google Scholar; 8. D. ... “A Computational Approach to Rock Fragmentation,” paper presented at 21st U.S. Symposium on Rock Mechanics, University of Missouri, Rolla, MI, May 1980, Los Alamos Scientific Laboratory … featherstone farm hotel wolverhampton
Numerical investigation of blast-induced rock fragmentation
WebDec 1, 2024 · Drilling and blasting represent the most extensively used method for rock breakage in the mining industry. Rock fragmentation by blasting is the first step in the overall comminution process towards delivering marketable products. WebJun 21, 2024 · The sensitivity of these predictions for two idealized fracture geometries, either a spherical damaged zone or discrete cracks, suggests a direction for further experimentation that may illuminate crack formation mechanisms in soft solids under dynamic loading. Issue Section: Research Papers Keywords: dynamics, elasticity, flow … WebOct 28, 2013 · To investigate the rock fragmentation and its influence factors under the impact load of water jet, a numerical method which coupled finite element method (FEM) with smoothed particle hydrodynamics (SPH) was adopted to simulate the rock fragmentation process by water jet. Linear and shock equations of state were applied to … featherstone foods bronx