In order to clarify the mechanism of hydrogen embrittlement in high strength steel, it is necessary evaluate local concentration stress and strain fields where considered occur. There are several ways visualize hydrogen, but SIMS advantageous that can detect directly without reaction. this study, visualization accumulated field was tried using SIMS. Hydrogen flux intensity bent portion U-bend s...

Propagating cracks may deflect due to dynamic instability, running into pre-existing weak regions of heterogeneous media, or encountering variation in driving forces. The mechanical analysis a kinked crack is engineering significance for safety control and crack-network formation. Existing theories relied on the perturbation method, as befit small kinks. stress intensity factors (SIFs) are vali...

In this paper, 2D boundary element stress analysis is carried out to obtain the T-stress for multiple internal edge cracks in thick-walled cylinders for a wide range of cylinder radius ratios and relative crack depth. The T-stress, together with the stress intensity factor K, provides amore reliable two-parameter prediction of fracture in linear elastic fracture mecha...

Two dimensional flow of a non-Newtonian fluid through an asymmetric stenosed artery is analysed under the influence of body acceleration with an external magnetic field on the flow field. The Casson fluid model is considered to characterize the non-Newtonian behaviour of the blood. The flow is assumed to be unsteady, laminar, two-dimensional, asymmetric and of pulsatile nature. The artery wall ...