摘要
本文从连续损伤理论的观点出发,将矿岩粉碎过程描述为在外部荷载作用下矿岩颗粒内部微缺陷(损伤)演化和繁衍的过程。导出了粉碎能耗与产品粒度分布的理论表达式。该式包含了所有传统的理论,同时较传统的能量分配观点前进了一步。
Based upon the aspect of continuous damaging, the process of ore com-minution may be described as the growth and propagation of the microcraks in theore grains under external loading, and a theoretical expression has been developed onthe relationship between the grain size distribution and the total energy consumptionduring entire ore comminution process. The energy consumed totally may be consi-dered to consist of two portions: i.e., with fresh crack surfaces growth and withcrack propagation. The expression proposed seems to be an advance over previousconventional ones, especially that from the viewpoint of energy distribution.
出处
《金属学报》
SCIE
EI
CAS
CSCD
北大核心
1990年第3期B153-B156,共4页
Acta Metallurgica Sinica
基金
国家自然科学基金
关键词
矿岩
粉碎
损伤
能耗
粒度
关系
ore comminution
continuous damage
critical perfectness
damage factor
