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A finite element investigation of the effect of crack tip constraint on hole growth under mode i and mixed mode loading

โœ Scribed by Y.Arun Roy; R. Narasimhan

Publisher
Elsevier Science
Year
1999
Tongue
English
Weight
648 KB
Volume
36
Category
Article
ISSN
0020-7683

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โœฆ Synopsis

In this work\ the e}ect of constraint on hole growth near a notch tip in a ductile material under mode I and mixed mode loading "involving modes I and II# is investigated[ To this end\ a 1!D plane strain\ modi_ed boundary layer formulation is employed in which the mixed mode elastic KรT _eld is prescribed as remote boundary conditions[ A _nite element procedure that accounts for _nite deformations and rotations is used along with an appropriate version of J 1 ~ow theory of plasticity with small elastic strains[ Several analyses are carried out corresponding to di}erent values of T!stress and remote elastic mode!mixity[ The interaction between the notch and hole is studied by examining the distribution of hydrostatic stress and equivalent plastic strain in the ligament between the notch tip and the hole\ as well as the growth of the hole[ The implications of the above results on ductile fracture initiation due to micro!void coalescence are discussed[

๐Ÿ“œ SIMILAR VOLUMES

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Finite element estimates of strain energy release rate components at the tip of an interface crack under mode I loading
โœ B. Dattaguru; K.S. Venkatesha; T.S. Ramamurthy; F.G. Buchholz ๐Ÿ“‚ Article ๐Ÿ“… 1994 ๐Ÿ› Elsevier Science ๐ŸŒ English โš– 958 KB

The strain energy release rate components G, and G,, in mode I and mode II at the tip of an interface crack in a bimaterial plate under tension in a direction normal to the interface were evaluated using finite element analysis and Modified Crack Closure Integral (MCCI) technique. Three models, name

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