yield stress

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yield stress

[′yēld ‚stres]
(fluid mechanics)
The minimum stress needed to cause a Bingham plastic to flow.
(mechanics)
The lowest stress at which extension of the tensile test piece increases without increase in load.
References in periodicals archive ?
and castor oil derivatives that form physical networks, which produce yield stresses.
Figure 3 shows that the replacement of 10% of Portland cement (by weight) with opoka and dolomite dust additives (Compositions III and VI) reduce the yield stresses of cement pastes by 9.
Higher fiber concentrations lead to a dominant elastic behavior and higher yield stresses.
But the change of values for elongation and reduction of area measured at different coefficients of friction is even smaller (less than 5%) than the change of tensile and yield stresses.
The maximum shrinkage stress values from drying were similar to those of relaxed compression yield stresses at the same temperature and RH conditions.
1), there are six independent anisotropic coefficients in which F, G, H are anisotropic coefficients of the main yield stresses and L, M, N are anisotropic coefficients of the shear yield stresses in the principal axes of anisotropy.
For all blends studied, the reported yield stresses are lower than the yield stress of neat PP and the tensile strength of neat PS which are 31.
Values of yield criteria parameters obtained by fitting all available yield stresses.
13-15] estimated composite yield stresses using the following relation: