This is both a noun (a thing) and a verb (a doing word), so there can be âthe affectâ or we can say that âsomething is affectedâ. Both noun and verb are used, but the verb of this word is the more common, so I will deal with this first. As a verb, it means (1) to influence; move; touch; impress.
Shear is a directional word referring to forces or stresses. A shear force goes parallel to the surface of an object or material. Shear stress can happen between two objects or within the same object. A shear stress between two objects occurs when a force pulls the object along the same plane as the face of the object abutting another object that is being pulled in the opposite direction.
1 The shear modulus or modulus of rigidity 2  (. or) describes an object's tendency to shear (the deformation of shape at constant volume) when acted upon by opposing forces; it is defined as shear stress over shear strain. Young's modulus 2  (. ) describes tensile elasticity, or the tendency of an object to deform along an axis when opposing forces are applied along that axis; it is defined as the ratio of tensile stress to tensile strain. 3  It is often referred to simply as the elastic modulus. 4  The shear modulus or modulus of rigidity (.