会议专题

Theoretical Analysis of Effects of Confining Pressure on the Stress Intensity Factors for Cracked Brazilian Disk

  In order to investigate effects of confining pressure on the stress intensity factors for a cracked Brazilian disk,the closed-form expressions of the stress intensity factors were obtained by using the weight function method in fracture mechanics for the cracked Brazilian disk loaded by the confining pressure,and then the explicit expressions of the stress intensity factors were achieved under both the confining pressure and diametrical forces loading condition.Based on the formulas of the stress intensity factors,effects of confining pressure on stress intensity factors of the cracked Brazilian disk was analyzed.The analyzed results show that the confining pressure has no effects on the mode Ⅱ stress intensity factor,however,mode Ⅰ stress intensity factors decrease with the increasing confining pressure.In addition,effects of confining pressure on the loading condition of pure mode II crack were also investigated.The analyzed results show that the critical loading angle for pure mode II crack decreases gradually to 0 degree with the increasing confining pressure.

cracked Brazilian disk stress intensity factor confining pressure critical loading angle

Jigang Xu Shiming Dong Zhenlin Wang

College of Architecture and Environment,Sichuan University,Chengdu 610065,China

国际会议

第13届国际断裂大会(ICF2013)

北京

英文

1-9

2013-06-16(万方平台首次上网日期,不代表论文的发表时间)