๐”– Bobbio Scriptorium
โœฆ   LIBER   โœฆ

Crack propagation behavior under creep conditions

โœ Scribed by P. K. Liaw; A. Saxena

Publisher
Springer Netherlands
Year
1992
Tongue
English
Weight
772 KB
Volume
54
Category
Article
ISSN
1573-2673

No coin nor oath required. For personal study only.

โœฆ Synopsis

The creep crack propagation behavior of a Cr-Mo-V rotor steel has been investigated at 538ยฐC using time-dependent fracture mechanics concepts. The creep crack propagation lives and the creep deflection rates of double-edge-notched (DEN) specimens were estimated using previous data from compact-type specimens. The predicted crack growth lives and deflection rates compared favorably with the experimental data. When plotted as a function of the C~ parameter, the experimentally determined creep crack propagation rates of DEN specimens were found to be in agreement with those of compact and center-crack-tension specimens. These results provide further experimental verification for the validity of the C~ parameter for characterizing creep crack growth behavior. Some discrepancies between the predicted and the observed behavior are attributed to primary creep deformation behavior which was not considered in estimating the value of Ct.

๐Ÿ“œ SIMILAR VOLUMES

Creep crack growth under small-scale cre
Creep crack growth under small-scale creep conditions
โœ Hermann Riedel ๐Ÿ“‚ Article ๐Ÿ“… 1990 ๐Ÿ› Springer Netherlands ๐ŸŒ English โš– 954 KB

Two different constitutive models are employed to describe creep crack growth under small-scale creep conditions theoretically. The first model combines elastic/nonlinear viscous deformation fields (8 = (r/E + Aa ~) with a critical-strain criterion, e = e,, to be satisfied at a structural distance x

Crack tip stresses under creep condition
Crack tip stresses under creep conditions
โœ J.T. Barnby ๐Ÿ“‚ Article ๐Ÿ“… 1974 ๐Ÿ› Elsevier Science ๐ŸŒ English โš– 298 KB

Linear elastic fracture mechanics predicts a characteristic distribution of tensile stress ahead of a crack tip in a body subjected to a remote tensile stress normal to the crack faces. The relaxation of this stress distribution, arising from steady state creep behatiour, is here examined. An Etppra

Fatigue crack propagation behavior of ul
Fatigue crack propagation behavior of ultra high molecular weight polyethylene under mixed mode conditions
โœ Elbert, K. E. ;Wright, T. M. ;Rimnac, C. M. ;Klein, R. W. ;Ingraffea, A. R. ;Gun ๐Ÿ“‚ Article ๐Ÿ“… 1994 ๐Ÿ› John Wiley and Sons ๐ŸŒ English โš– 609 KB

## Abstract Analytical studies of the stresses on and within ultra high molecular weight polyethylene joint components suggest that damage modes associated with polyethylene fatigue failure are caused by a combination of surface and subsurface crack propagation. Fatigue crack propagation tests unde