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An integral JR0, for a crack perpendicular to the interface of a bonded composite

✍ Scribed by C.R. Chiang; W.H. Chen; K.T. Chen

Publisher
Elsevier Science
Year
1987
Tongue
English
Weight
460 KB
Volume
28
Category
Article
ISSN
0013-7944

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✦ Synopsis

This paper is concerned with the plane strain problem of a crack that terminates perpendicularly at the interface of a bonded composite. An integral JR,, is proposed. By the asymptotic analysis, it is shown that, so laong as R o is within the K-dominant region, JR0 = KZ,R6Z"+'((1 -u2)/2pL2)H. Here, H is a function of bimaterial constants only. Numerical results of H for a variety of material combinations are evaluated and presented.

In particular, when two materials are identical, JR0 reduces to J as expected. Since in this case, A = 0.5, the R. dependence disappears.

JR0 not only provides an alternative way to evaluate the stress intensity factor KB but also suggests itself a possible fracture initiation criterion.

πŸ“œ SIMILAR VOLUMES

On the applicability of JR0 integral for
On the applicability of JR0 integral for perpendicular interface crack
✍ Chen Wen-Hwa; Chen Kuen-Tsann; Chiang Chun-Ron πŸ“‚ Article πŸ“… 1988 πŸ› Elsevier Science 🌐 English βš– 561 KB

Further studies on the applicability of the JR0 integral established in the authors' earlier work are presented in this work using detailed numerical experiments. Based on a developed hybrid displacement finite element model for bimaterial fracture problems, the JR,, integral for perpendicular inter

A special finite element for the analysi
A special finite element for the analysis of the singularity in a bimaterial containing a crack perpendicular to the interface
✍ Rochdi El Abdi πŸ“‚ Article πŸ“… 1991 πŸ› Elsevier Science 🌐 English βš– 332 KB

## Us&act-It is shown that the singularity of stresses near the tip of crack in an elastii: bi-material can be obtained by using degenerate triangular elements, the shape functions of which are derived from those classical isoparametric elements. A four node triangular element is tested on two dif