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The simply supported truss is subjected to the central distributed load


The simply supported truss is subjected to the central distributed load. Neglect the effect of the diagonal lacing and determine the absolute maximum bending stress in the truss The top member is a pipe having an outer diameter of 1 in. and thickness of 3/16 in., and the bottom member is a solid rod having a diameter of 1/2 in.

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a) Draw the shear and bending moment diagrams for the truss. Identify the maximum shear force and bending moment. 

b) What is the location of the neutral axis relative to the bottom of the truss? 

c) What is the centroidal moment of inertia for the section? 

d) Draw the distribution of bending stress across the section? 

e) What is the absolute maximum bending stress?

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