In the engineering of high stress area, measures to control stability surrounding rock by reducing excavation footage and speed are adjust unloading rate caused excavation. this study, creep tests marble under conditions were carried out study effect rate. Research results showed that axial lateral instantaneous strain sample increased with increase rate; characteristic condition was stronger t...

Recent dense granular flow experiments have shown that shear deformation in one region of a granular medium fluidizes its entirety, including regions far from the sheared zone, effectively erasing the yield condition everywhere. This enables slow creep deformation to occur when an external force is applied to a probe in the nominally static regions of the material. The apparent change in rheolo...

--A state variable approach based on Hart’s [1] formulation for describing nonelastic deformation of crystalline solids is reviewed. It is shown to describe commonly observed deformation phenomena, such as creep. Presently, deformation phenomena such as inhomogeneous flow and those involving strong dislocation-solute interactions are not within the scope of this approach. Revue Phys. Appl. 23 (...

Effect of Mean Stress on Low-Cycle Fatigue Strength of a Medium Carbon Steel S45C True Stress-Controlled Cyclingby Tatsuo ENDO*, Shoji HARADA*, Yoshihiro FUKUSHIMA* and Haruo SAKAMOTO** Nominal stress-controlled low-cycle fatigue life under imposed mean stress is affected by elongation or contraction due to cyclic stress-induced creep. Therefore, the effect of mean stress was examined by a micr...

in this work dynamic recrystallization behavior of aisi 403 martensitic stainless steel was studied using hot compression tests over temperature range of 900 c -1200 c and strain rate range of 0.001 s-1 - 1 s-1. the obtained flow curves showed that the hot compression behavior of the alloy is controlled by dynamic recrystallization. the flow stress and strain corresponding to the critical, pe...

Abstract Strain energy from tectonic loading can be partly released through aseismic creep. Earthquake repeaters, repeatedly activated brittle fault patches surrounded by creep, indicate steady‐state creep that affects the amount of seismic available for next large earthquake along a plate contact. The offshore Main Marmara Fault (MMF) North Anatolian Zone represents gap capable generating M &g...

The high-temperature mechanical behavior of polycrystalline 5 at% yttrium-doped barium cerate with submicronic grain size (d = 0.5 µm) has been studied in compression between 1200 and 1300 °C at different initial strain rates. true stress – curves display an peak followed by a softening stage then extended steady-state stage; the magnitude is strongly dependent on rate temperature. These charac...