A fracture-based model of periodic-arrayed indentation for rock cutting

摘要：

　　When an half-space elastic substrate is subject to indentation with rigid,flat-ended and periodic indenters,a periodic singular stress fields and K-dominant regions should arise adjacent to the indenter edges.The concept of indentation stress intensity factor Kind is introduced to describe the singular indentation stress field,which mathematically is very similar to that of a mode I crack.The singular indentation stress field is sufficient to induce cracking from a smooth crack-free surface,which can potentially play a significant role in damage analysis of rock cutting.In the present article,a fracture-based model is proposed for rock breakage by using an energy-based method.The indentation stress intensity factor Kind and indentation cracking equation for rock cutting model have been formulized.

关键词： Fracture Contact mechanics Indentation stress intensity factors Indentation

作者: Yu Jun Xie Bo Yang Xiang Xiao Zhi Hu

作者单位: Department of Mechanical Engineering,Liaoning Shihua University,Fushun,113001,P.R.China School of Mechanical and Chemical Engineering,The University of Western Australia,Perth,WA 6009,Aust

会议类型: 国际会议

会议名称: 第13届国际断裂大会(ICF2013)

会议地点: 北京

会议语种:英文

页码: 1-9

在线出版日期: 2013-06-16（万方平台首次上网日期，不代表论文的发表时间）