Shear stress is a fundamental concept in mechanics and materials science that describes a materials internal resistance to deformation when subjected to a force or load that acts parallel to a selected plane of reference. Shear stress is a measure of how easily one plane within the material can be made to slide or deform along another in response to an applied force. The shear stress is critical in determining product quality and consistency in high-shear mixing processes.
Shear strength is a force that tries to keep stuff in equilibrium when another force tries to break, bend, or modify a structure. The shear strength has a positive and negative sign, and it changes signs because the internal strength should push back upwards.
The stress and rate of shear diagram indicate varieties of food products classified under different categories, which is considered to be non-Newtonian. The fluids can be classified into different categories depending on the response to the applied shear force. Newtonian fluids exhibit a linear increase in the shear stress with the rate of shear, while pseudoplastic/shear-thinning fluids display a decreasing consistency with an increasing shear rate.
In summary, shear stress is a measure of a materials internal resistance to deformation when subjected to a force or load that acts parallel to a selected plane of reference. Shear strength is a force that tries to keep stuff in equilibrium when another force tries to break, bend, or modify a structure. The fluids can be classified into different categories depending on the response to the applied shear force.
