A rectangular beam is subjected to a pure bending moment m...

A rectangular beam is subjected to a pure bending moment $M$. The cross-section of the beam is shown in Fig. 1.34. Using the elementary flexure formula, determine the normal and shearing stresses at a point $(x, y)$ on the plane $AB$ shown. Fig. 1.34 Problem 1.2 Ans. $\sigma_n = \tau_n = \frac{6My}{bh^3}$

4) The _________ formula is used to compute the normal stress component of the bending moment of a beam. 5) If a beam section is isotropic and homogeneous, the neutral axis passes through the _________ of the cross-section. 7) In the method of _________, the resultant effect of several loads acting on a member is determined by superimposing the contributions from each load applied individually. 8) The shearing stress in a beam is maximum at the _________. 9) A _________ beam has one end fixed and the other end free. 1) The shear force per unit of length along the shear plane is called the _________. 2) In a bending moment diagram, the maximum or minimum moment occurs at point(s) where the shear force is equal to _________. 3) For triangularly distributed loads, the shear diagram is a _________ curve. 5) The bending moment is positive when the top of the beam is in _________. 6) The smallest column load that produces buckling or failure is called the critical or _________ load.

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