Model and solve the problem below in ANSYS and answer the questions at the bottom of the page.
Steel beams, welded at all joints (E =
29x106
psi, Poisson's ratio = 0.3, density = 0.283 lbm/cu.in).
Cross-section data: hollow, square cross section, outer side length is 3.0 in.
and wall thickness is 0.15 in.
The base beam is 8 feet long, midway between the ends, a vertical member extends 36 in. above the base. The shorter horizontal member is 4 ft. long.
Loads:
500 #, downward at the tip of the "h-shape."
A 24,000 in-lbf moment CCW is applied at the joint between the base and vertical member.
Include the weight of the assembly
Constraints:
pinned (UX, UY) at left end,
vertical support ONLY on right, bottom end
The mass of the steel assembly: ________________ lbm.
The maximum deflection: ________________ in.
Where does the maximum deflection occur at ?
The highest bending moment : ________________ in-lbf
Where does the highest bending moment occur at ?
The highest maximum combined stress: ________________ psi
Where does the highest maximum combined stress occur at ?
The highest minimum combined stress: ________________ psi
Where does the highest maximum combined stress occur at ?
The deflection components at the joint btw. the base and vertical member:
UX = ______ in., UY = ______ in.
From the ANSYS Output Window:
**** CENTER OF MASS, MASS, AND MASS MOMENTS OF INERTIA ****
CALCULATIONS ASSUME ELEMENT MASS AT ELEMENT CENTROID
TOTAL MASS = 0.22543
Mass of 0.22543 lbf*s^2/in = 87 lbm
Finding Node 1 is at the junction btw. base and vertical member:
| NODE | X | Y | Z |
| 1 | 48 | 0 | 0 |
| ***** POST1 NODAL DEGREE OF FREEDOM LISTING ***** | |||
| NODE | UX | UY | |
| 1 | 0.000 | -0.019 | |