Книга: Shear Stress: Stress (mechanics), First Moment of Area, Moment of Inertia, Monocoque, Shear Flow, Viscosity, Couette Flow, Hagen?Poiseuille Equation, Depth?Slope Product

High Quality Content by WIKIPEDIA articles! A shear stress, denoted tau, (tau), is defined as a stress which is applied parallel or tangential to a face of a material, as opposed to a normal stress which is applied perpendicularly. Beam shear is defined as the internal shear stress of a beam caused by the shear force applied to the beam. Shear stresses within a semi-monocoque structure may be calculated by idealizing the cross-section of the structure into a set of stringers (carrying only axial loads) and webs (carrying only shear flows). Dividing the shear flow by the thickness of a given portion of the semi-monocoque structure yields the shear stress. Thus, the maximum shear stress will occur either in the web of maximum shear flow or minimum thickness.