您目前所在的位置:首页 - 期刊简介 - 详细页面

铁道科学与工程学报

JOURNAL OF RAILWAY SCIENCE AND ENGINEERING

Vol. 9    No. 2    June 1999

[PDF Download]    [Flash Online]

    

A CRACK CLOSURE MODEL FOR BRITTLE ROCK SUBJECTED TO COMPRESSIVE-SHEAR LOADING
Chen Feng, Sun Zongqi and Xu Jicheng

Opening Lab of Mechanics, Central South University of Technology,Changsha 410083, P. R. China

Abstract:Crack closure in brittle materials subjected to compressive-shear loading is studied to gain insight into compressive-shear failure mechanism. An analytical wing crack model for the stress intensity factors is developed in the light of superimposition principle. The model can be successfully used to predict out-of-plane initiation and extension. Comparison shows that theKⅠvalues at wing crack tips obtained by the present method agree well with the exact solution proposed by Horii and Nemat-Nasser. The comparison with other approximate model is also given.

 

Key words: crack closure compressive-shear loading stress intensity factor

ISSN 1672-7029
CN 43-1423/U

主管:中华人民共和国教育部 主办:中南大学 中国铁道学会 承办:中南大学
湘ICP备09001153号 版权所有:《铁道科学与工程学报》编辑部
------------------------------------------------------------------------------------------
地 址:湖南省长沙市韶山南路22号 邮编:410075
电 话:0731-82655133,82656174   传真:0731-82655133   电子邮箱:jrse@mail.csu.edu.cn