Dugdale models for two collinear unequal cracks
โ Scribed by P.S. Theocaris
- Publisher
- Elsevier Science
- Year
- 1983
- Tongue
- English
- Weight
- 994 KB
- Volume
- 18
- Category
- Article
- ISSN
- 0013-7944
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โฆ Synopsis
Abatraet
-In this paper the Dugdale model is applied to determine the plastic zones developed in the case of two collinear and unequal cracks within an homogeneous, isotropic, elastic-perfectly plastic infinite plate. The cracks are subjected to a normal loading, acting at the infinity. It was assumed that the type of plastic deformation was of the cross-slip mode creating narrow plastic enclaves, case for which the original Dugdale model for a single crack is valid. The case of plastic coalescence between the collinear cracks was derived as a special case of the general problem.
๐ SIMILAR VOLUMES
closed-form equations are given for the plastic zone size and crack tip openingdisplacement in a circumferentially-cracked cylindrical bar under tension, treated in terms of a Dugdale-type modeI. The equations are valid from a lower limit of linear-elastic behaviour up to the intervention ofa limit-
Ab&aet-This paper presents a method of numerical analysis for the problem of two collinear cracks in a finite, linearly elastic, isotropic plate and subjected to in plane forces. The problem is treated imagining the plate with the two cracks draws in an unbounded region. Using the analytical soluti