... column has a cross-sectional area of 645 mm2. Est = 200 Gpa.Exercise 6:Fig.4Fig.53,6m3,6mLink BC is 6 mm thick, has a width w = 25 mm, and is made of a steel of 48 0- MPa ultimate strength ... was designed to support a 16-kN load P?Exercise 7: In the figure 6 of the precedent exercise, suppose that link BC is 6 mm thick and is made of a steel with a 450-MPa ultimate strength in tension. ... Portion AB is made of brass (Eb = 105 GPa, αb = 20.9 x 10 -6 /0C) and portion BC is made of aluminum (Ea = 72 GPa, αa = 23.9 x 10 -6 /0C) (Fig.8). Knowing that the rod is initially unstressed,...