Answer Happy

Question 3. An L-shaped cross section is shown in Figure 1 where point c refers to centroid of the shape. a) Locate the centroid of the cross-section with respect to x’y'axes. With respect to y and z coordinates with the origin at the centroid; b) calculate the moment of inertia values (1y, 12) of the given cross section, c) calculate the product of inertia (Lyz) of the given cross section, d) find the principal centroidal axes and principal moment of inertia values of the given cross section. For the given loading in Figure 2; e) find the neutral axis, f) find the absolute maximum stress and its location, g) show the stress state on an infinitesimal element at the point of absolute maximum stress. 140 mm 140 mm 로 c 60 mm 60 mm 20 mm 20 mm P=1kN x' 80 mm Figure 1 80 mm Figure 2