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.
Sheer(verb) to shear. Sheer(verb) to decline or deviate from the line of the proper course; to turn aside; to swerve; as, a ship sheers from her course; a horse sheers at a bicycle. Sheer(noun) the longitudinal upward curvature of the deck, gunwale, and lines of a vessel, as when viewed from the side.