๐”– Bobbio Scriptorium
โœฆ   LIBER   โœฆ

Finite element modelling of subsurface mode II cracks under contact loads

โœ Scribed by P.C. Bastias; G.T. Hahn; C.A. Rubin

Publisher
Elsevier Science
Year
1989
Tongue
English
Weight
965 KB
Volume
33
Category
Article
ISSN
0013-7944

No coin nor oath required. For personal study only.

โœฆ Synopsis

Ahstraet-A finite element model for simulating cracks in an elastic half space subjected to two dimensional rolling contact is introduced. The mode II stress intensity range Ak;, is evaluated for both a point load and a Hertzian pressure distribution. The results agree with closed form solutions. The model makes it possible to study both long as well as short cracks of any inclination. Although only the frictionless crack case and linear elastic material behavior are treated here, the model may be extended to treat both friction and elastic-plastic behavior. Crack Tip Shear Displacement A(CTSD), obtained from the finite element analysis could be used in place of K,, or the J-integral as the crack tip controlling parameter thus avoiding d~~lties produced by friction and unloading.

๐Ÿ“œ SIMILAR VOLUMES

Branching extension characteristics of m
Branching extension characteristics of mode II crack under fatigue loading
โœ Zong Rui; Wang Ming-O ๐Ÿ“‚ Article ๐Ÿ“… 1994 ๐Ÿ› Elsevier Science ๐ŸŒ English โš– 871 KB

Experiments show that a mode II crack branches symmetrically under fatigue loading. The characteristics of a symmetrically branched crack in a shear stress field are analysed by FEM. Mode II fatigue tests are performed on six specimens of three different materials. Serious friction is observed exist

Finite element estimates of strain energ
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