✦ LIBER ✦

Screw dislocations near a crack penetrating through an interface

✍ Scribed by Hao Ouyang; Sanboh Lee

Publisher: Elsevier Science
Year: 1996
Tongue: English
Weight: 394 KB
Volume: 54
Category: Article
ISSN: 0013-7944
DOI: 10.1016/0013-7944(95)00233-2

No coin nor oath required. For personal study only.

✦ Synopsis

Screw dislocations near a crack penetrating through an interface were investigated. Based on the solution of homogeneous solid, we derived the stress field, stress intensity factors and crack extension forces at both crack tips, and the image force and strain energy of screw dislocations. The mechanical behavior arising from a crack penetrating through an interface is different from that arising from an interracial crack. The effect of the ratio of shear modulus and crack length on the mechanical variables was examined. The mechanical behavior of a dislocation emitted from a crack tip is different from that of a dislocation originating elsewhere. Special cases are discussed.

📜 SIMILAR VOLUMES

Screw dislocation dipoles near an intern

Screw dislocation dipoles near an internal crack

✍ K.M. Lin; C.T. Hu; Sanboh Lee 📂 Article 📅 1993 🏛 Elsevier Science 🌐 English ⚖ 904 KB

Abatrac-Based upon the results of previous work [K. M. Lin et al., Muter. Sci. Engng 95, 167 (1987)], the system of a screw dislocation dipole interacting with an internal crack is studied. The analytic formulae of the physical variables, such as stress field, strain energy and thpping energy, image

The image effects on a pile-up of screw

The image effects on a pile-up of screw dislocations near a circular interface

✍ K. Jagannadham; K.S. Raghavan 📂 Article 📅 1974 🏛 Elsevier Science ⚖ 358 KB

Energy of a dislocation near an epitaxia

Energy of a dislocation near an epitaxial interface

✍ C.A.B. Ball; C. Laird 📂 Article 📅 1977 🏛 Elsevier Science 🌐 English ⚖ 178 KB

Edge dislocation near an inclusion with

Edge dislocation near an inclusion with a slipping interface

✍ J. Dundurs; A.C. Gangadharan 📂 Article 📅 1969 🏛 Elsevier Science 🌐 English ⚖ 703 KB

Screw dislocation pile-ups at and near a

Screw dislocation pile-ups at and near a planar interface of a two-phase system

✍ K. Jagannadham; K.S. Raghavan 📂 Article 📅 1973 🏛 Elsevier Science 🌐 English ⚖ 969 KB

A Screw Dislocation Interacting with an

A Screw Dislocation Interacting with an Interfacial Crack in Two Dissimilar Piezoelectric Media

✍ Ai Kah Soh; Jin-Xi Liu; Dai-Ning Fang 📂 Article 📅 2002 🏛 John Wiley and Sons 🌐 English ⚖ 117 KB 👁 2 views

In this paper the interaction of a screw dislocation with a semi-infinite interfacial crack of two dissimilar piezoelectric materials is considered. The expressions for the electroelastic fields, intensity factors, and image force acting on a screw dislocation are given in explicit form in terms of