Investigation on start-up yield stress of Daqing gelled crude oil;

Study on Yield Stress of LC_4 Alloy in the Semi-solid State;

Analysis of yield stress states of fcc metals under plane deformation;

Theoretical analysis shows that the dynamic yielding stress, apparent viscosity, and average normal stress of electrorheological suspensions are greatly strengthened with the variation of rheological gap and changes in the electric field strength during the squeezing process under a constant voltage.

In the test,the relation of the yielding stress to R is derived,according to two kinds of stress states.

With the increase of the intensity of applied electric field, the yielding stress of ER fluid will be increased and the conversion from liquid to solid can be achieved.

Effects of physical aging on the tensile properties,stress yielding mechanism and submicroscopic structure of amorphous PES copolymer film were studied by DSC,stress-strain curve and fluorescence spectrum measurements.

To achieve easily and rapidly the key data of the yield shear stress and ultimate shear stress,the double-hole micro-shear,transistors and microchip machine MSP430F149 are used in the testing system.