Elastodynamic analysis of a plane weakened by several cracks

INTERNATIONAL JOURNAL OF SOLIDS AND STRUCTURES

卷:46

Article

Ayatollahi, M.²  Fariborz, S. J.¹ 

[1] Amirkabir Univ Technol Tehran Polytech, Dept Mech Engn, Tehran 158754413, Iran

[2] Zanjan Univ, Fac Engn, Zanjan 45195313, Iran

关键词: Infinite plane;    Dislocation density;    Harmonic load;    Multiple cracks;    Stress intensity factor;   

DOI  :  10.1016/j.ijsolstr.2008.12.020

来源: Elsevier

【 摘 要 】

The stress fields in an infinite plane containing Volterra type climb and glide edge dislocations under time-harmonic excitation are derived. The dislocation solutions are utilized to formulate integral equations for dislocation density functions on the surfaces of smooth cracks. The integral equations are of Cauchy singular type which are solved numerically for several different cases of crack configurations and arrangements. The results are used to evaluate modes I and If stress intensity factors for multiple smooth cracks. (C) 2009 Elsevier Ltd. All rights reserved.

【 授权许可】

Free