A critical value (Tc/Te<0.02,TC represents the time experienced by a given particle between two consecutive binary collisions,Te is the particle relaxation time) was applied to judge whether the friction stress and the slide stress could be neglected.

Based on the analysis of common pavement structures and their equivalent conversion,the regression formulas of displacement and tensile stress are obtained successfully,furthermore the formulas applied in multi layer system are checked.

Using this model, an expression for the stress and temperature dependence of the total steady state strain rate is obtained as a function of the grain matrix strain rate and the grain boundary sliding strain rate.

If diffusional process is not sufficiently fast to accommodate sliding strain, especially at high strain rates.

The stress/time, sliding/time and sliding/stress curves for these tests are presented together with metallographic observations.

The temperature-dependence of the sliding behaviour, as reflected by the sliding/stress results, yielded apparent activation energies of ～ 31 Kcal/mole in the temperature range 600 to 475°C and ～ 8 Kcal/mole in the range 475 to 350°C.

While the frictional sliding stress appeared to be independent of the fabrication technique, the interfacial debond shear stresses were larger for the DS composites compared to the PC composites.

The postdebond sliding stress was higher in sapphire-NiAl(Cr) than in sapphire-NiAl(W) due to interface enrichment with chromium particles.

In addition, independent measurements of the sliding stress have been made using fiber pushout tests on both pristine and fatigued specimens.

The Marmara region, located near the western end of the NAF, is a tectonically active zone characterized by the transition between a strike slip stress regime and an extensional one in the Aegean Sea.

For fcc metals, correlation of the H-P slope with the cross-slip stress, predicted by the Armstrong model, has been demonstrated for a few cases.

Quartz gouge between the pre-cut surfaces of Tennessee Sandstone lowers both the kinetic coefficient of friction and the magnitude of the stick-slip stress drops compared to those for a pre-cut surface alone.

Stick-slip stress drops are preceded by stable sliding at displacements of 10-5 cm/sec.

The interaction between a fault segment and its neighboring segments can be measured when the post-slip stress on this segment is compared with the stress on an identical segment (represented by a block in this modeling) without neighboring segments.

The Ae response of granite during fracture and friction was measured at high confining pressure up to 600MPa. The first active region of AE signatures in uniaxial testing was not found when confining pressure was loaded. The AE response shows a transition from dense to dense-unstable as confining pressure increases. The curvature of the increasement of cumulative AE events during deformation decreases with increasing of confining pressure. Filling the data with exponential function, it is found that the exponential...

The Ae response of granite during fracture and friction was measured at high confining pressure up to 600MPa. The first active region of AE signatures in uniaxial testing was not found when confining pressure was loaded. The AE response shows a transition from dense to dense-unstable as confining pressure increases. The curvature of the increasement of cumulative AE events during deformation decreases with increasing of confining pressure. Filling the data with exponential function, it is found that the exponential coefficients decrease and the discrepancy of AE activity among deformation stages decreases and dis appears with increasing of confining pressure. The AE response during accumulation of stress of friction sliding obeyed the exponential law too, but the exponential coeffcient was lower than that of fracture of intact sample. The AE events increase simply with sliding distance during stable sliding.

To facilitate the design,teaching and research of asphalt pavements,the article founded the models of displacement and tensile stress of three layer system by using separation of variables,analysis and synthesizer.Based on the analysis of common pavement structures and their equivalent conversion,the regression formulas of displacement and tensile stress are obtained successfully,furthermore the formulas applied in multi layer system are checked.A great number of results of regression formulas show good accuracy...

To facilitate the design,teaching and research of asphalt pavements,the article founded the models of displacement and tensile stress of three layer system by using separation of variables,analysis and synthesizer.Based on the analysis of common pavement structures and their equivalent conversion,the regression formulas of displacement and tensile stress are obtained successfully,furthermore the formulas applied in multi layer system are checked.A great number of results of regression formulas show good accuracy for engineering application and theory research.

The stresses of the cohesionless solids flow in water-sediment mixture is a difficulty in the solid-liquid two phase theory.On the bases of the expansion model,the kinetic theory,and the continuous media theory,the stress constitutive relation of cohesionless solids flow with consideration of the coefficient of elastic collision restitution has been obtained,which included the friction stress,the slide stress,and the collision stress.A critical value (Tc/Te<0.02,TC represents the time experienced by a given...

The stresses of the cohesionless solids flow in water-sediment mixture is a difficulty in the solid-liquid two phase theory.On the bases of the expansion model,the kinetic theory,and the continuous media theory,the stress constitutive relation of cohesionless solids flow with consideration of the coefficient of elastic collision restitution has been obtained,which included the friction stress,the slide stress,and the collision stress.A critical value (Tc/Te<0.02,TC represents the time experienced by a given particle between two consecutive binary collisions,Te is the particle relaxation time) was applied to judge whether the friction stress and the slide stress could be neglected.A simulation of water-sediment flow in inclined chute was carried out to employ the new stress constitutive relation,and the calculated result was good agreement with the experiment data.