CENTRE CRACK WITH WIDTH AND PROBATION OF NON-SINGULAR FRACTURE MECHANICS

摘要：

This paper adopts the true cracked mathematical model observed in test. In the model, the distance between upper and lower surface of crack and the radius of curvature at the cracked tip are introduced and considered as a basic quantity. Based on the theory of elastic mechanics and conformal mapping,we have, obtained the analytic solution of this problem, determined the field of stress at the cracked tip, and set up a new fracture criterion whatis directly uses the stress itself. The result here realizes the uniform between cracked model and cutting test model, and the cracked growth or extension criterion and the ordinary strength or intensity criterion.

关键词： True crack Distance between failure surfaces Radius of curvature at the cracked tip Conformalmapping Stress criterion Non-singular fracture mechanics

作者: YUN DING XIAOCHUN YANG TIANYOU FAN

作者单位: Mathematics Department of Dalian Maritime University, Dalian, 116023, P.R.China Research Centre of Materials Science, Beijing Institute of Technology Beijing, 100081, P.R.China

会议类型: 国际会议

会议名称: The Second International Conference on Information & Systems Sciences(ICISS2008)(第二届信息与系统科学国际会议)

会议地点: 大连

会议语种:英文

页码: 437-443

在线出版日期: 2008-12-18（万方平台首次上网日期，不代表论文的发表时间）