Viscous Stress

Views Updated: Dec 15, 2025

Abbreviation

Pronunciation

/ˈvɪskəs strɛs/

From the new aspect of viscoelasticity analysis, the mechanical response of thixotropic waxy crude is achieved by means of elastic and viscous stress analysis. A new thixotropic model was put forward based on several reasonable hypotheses, and its physical significance is explicit.
By utilizing the dynamic theory of discrete media the concept of granular temperature was introduced to describe the viscous stress of a solid phase. Moreover, a gas solid two phase coupling was accomplished by the use of a gas solid drag force.
Because Prandtl's two hypotheses the viscous stress is less and the total stress is not variable along the radial are canceled in these formulas. the formulas are theoretically more rational than Prandtl's turbulent formulas in pipe.
The turbulence model for dense solid-liquid mixture now is presented. In this model, the stresses for this mixture flow are analysed in detail, including particle impact stress, viscous interactive stress on particles, turbulent stress and Coulombic friction stress.
In this paper, the principle of viscous adhesive stress tensile test is provided. Using the viscous adhesive stress as tensile stress, sheet metal deformation can be measured directly.

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