Finite boundary effects in problem of a crack perpendicular to and terminating at a bimaterial interface
Blekinge Institute of Technology, School of Engineering, Department of Mechanical Engineering2005 (English)In: Acta Mechanica Sinica, ISSN 0567-7718 (p)1614-3116(online), Vol. 21, no 1, 56-64 p.Article in journal (Refereed) Published
The problem of a crack perpendicular to and terminating at an interface in bimaterial structure with finite boundaries is investigated. The dislocation simulation method and boundary collocation approach are used to derive and solve the basic equations.Two kinds of loading form are considered when the crack lies in a softer or a stiffer material, one is an ideal loading and the other one fits to the practical experiment loading. Complete solutions of the stress field including the T stress are obtained as well as the stress intensity factors. Influences of T stress on the stress field ahead of the crack tip are studied. Finite boundary effects on the stress intensity factors are emphasized. Comparisons with the probled presented by Chen et al. (int. J. Solids and Structure, 2003,40, 2731-2755) are discussed also.
Place, publisher, year, edition, pages
Heidelberg: Springer Berlin , 2005. Vol. 21, no 1, 56-64 p.
Bimaterial stucture, finite boundary, crack, stress intensity factor, T stress
IdentifiersURN: urn:nbn:se:bth-9850ISI: 000228656600007Local ID: oai:bth.se:forskinfo816629A341C9F2CEC125712D003B5E54OAI: oai:DiVA.org:bth-9850DiVA: diva2:837815