12 marks b determine the maximum absolute normal

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Unformatted text preview: ) Determine the maximum absolute normal stress and the maximum shearing stress on the beam. (8 marks) Figure 1(a) Figure 1(b) 1 ATTENTION: The Singapore Copyright Act applies to the use of this document. Nanyang Technological University Library MA2001/MP2001/AE2008 2(a) Figure 2(a) shows a simply-supported beam AB loaded with two transverse loads P and an axial centric load F at point B. The cross-section of the beam is rectangular (b x 2b) as shown in Figure 2(a). Figure 2(a) (i) (ii) (b) Determine the magnitude of F (in terms of P, L and b), if the normal stress at the bottom of the cross-section at mid-span of the beam AB is zero (point k in Figure 2(a)). (6 marks) If the normal stress due to bending moment alone is 100 times the maximum shearing stress, determine the magnitude of L in terms of b. (4 marks) A shaft ABCDE is made of steel ( G 80 GPa ) and fixed at A as shown in Figure 2(b). A torque QE is applied at end E of the shaft and a torque QC at position C. Section AB has an internal...
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This document was uploaded on 03/10/2014 for the course MA 2001 at Nanyang Technological University.

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