two members are bonded together at b and loaded as a beam with a pin support at a and a roller support at c. the composite member has a rectangular cross section with a height, h, and width, b. determine the normal and shear stress acting at point d on the bond plane as a result of the loading. also determine the principal stress, maximum in-plane shear stress, average normal stress and the rotation angles for the principal stresses and maximum in-plane shear stress at this point in the member. show all stresses on stress elements.h