Question

i$.$ State the basic assumptions of the theory of bending of beams

marks$)$

ii$.$ An open$-$link chain is obtained by bending low$-$carbon steel rods into the shape shown in Figure $2.$ For $160$ lb load, determine $($a$)$ maximum tensile and compressive stresses, $($b$)$ distance between section centroid and neutral axis

$(12$ marks$)$

Figure:. Open$-$link chain