To study the influence of earthquakes and engineering disturbances on deformation deeply buried rock masses, shear tests were carried out anchored sandstone marble granite masses under creep fatigue loading, a new model was established to characterize characteristics loading. The curves different lithologies clearly show three stages: attenuation, steady-state creep, accelerated creep. Fatigue ...

the creep/recovery behavior of wood flour-polypropylene was compared with medium density fiberboard (mdf) and particleboard. for this purpose, wood flour-polypropylene composites (with and without compatibilizer)were manufactured by using a laboratory twin-screw extruder. the mdf and particleboard panels were obtained from local producers. short term flexural creep tests at 30% of ultimate bend...

Long-term creep tests on the solid-solute-strengthened zirconium alloy, i.e., Zircaloy-4, revealed presence of double steady-state behavior at 623–673 K. The first steady state manifested as a faster strain rate (ε) ∼0.05, and second appeared with slower ε > 0.1. Several electron microscopy change in dislocation structure during from motion individual dislocations to generation cell structure. ...

Creep response in a rotating disc made of anisotropic Al-SiC(particle) composite having linearly varying thickness has been carried out using anisotropic Hoffman yield criterion in present study. The steady state creep behavior is described by Sherby’s constitutive model. The material parameters characterizing difference in yield stresses have been used from the available experimental results i...

Bulk samples of Pd41Ni10Cu29P20 glass were tested at constant true stress s20–636 MPad in compression at 550, 555, and 565 K to study the transition from steady-state creep at low stress to deformation-induced softening at high stress. In the high-stress regime strongly accelerating creep was observed. All deformation was homogeneous. The activation volume was 106 Å3. The isoconfigurational act...