EXERCISE 3.2: A pin-jointed plane truss is pinned at point A and supported on a roller at point E. it carries point loads at point C and D. Using method of virtual work, determine the vertical displacement at joint C. Given the following: O BLA 1500mm? 200 kN/mm? Area of each member

The following beam is supported by an aluminum bar at C, a steel bar at B, and a brass bar at D. The distance b is equal to 50 mm. The data is shown in the table:If the maximum rotation that can occur at point A is 0.25 radians clockwise, determine: a. The maximum force P that can be applied. Answ: 28347.97 kNb. The normal stress in the aluminum, steel, and brass bars. Answ: 25 000 MPa, 17500 MPa, 25937.5 MPa

Calculate the vertical displacement (downward) at Joint C of the given truss using the method of virtual work. You can use Space Gass to compute the internal forces of the real and virtual systems without manual calculations. (Assume the cross-sectional area and modulus of elasticity of each member are constant.)

(3) For the truss shown, compute the horizontal and vertical components of the displacement of joint B. The area of all bars = 2500 mm2, and E=210 GPa. 1200 kN D IM BI 4 m 3 m 3 m E 300 KN