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naggy
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This is an indterminate torsional member.
A hollow steel shaft ACB of outside diameter 50 mm and inside diameter 40 mm is held against rotation at ends A and B. Horizontal forces P are applied at the ends of a vertical arm that is welded to the shaft at point C. Determine the allowable value of the forces P if the maximum permissible shear stress is 45 MPa
I can't find a picture of this problem, it's in my textbook. I'll try to make it as clear as possible with my limited knowledge.
L1 (AC) = 600 mm
L2 (CB) = 400 mm
The length from C to the force P is 200 mm on both sides. It produces a torque that is pointing to the right, toward B.
Where is the maximum shear stress in the shaft and why? I know the relation between shear stress (s) and torque (T)
s = T*radius of bar/I
I is the polar moment of inertia
And I know that 2P * 200mm = Torque about point C
A hollow steel shaft ACB of outside diameter 50 mm and inside diameter 40 mm is held against rotation at ends A and B. Horizontal forces P are applied at the ends of a vertical arm that is welded to the shaft at point C. Determine the allowable value of the forces P if the maximum permissible shear stress is 45 MPa
I can't find a picture of this problem, it's in my textbook. I'll try to make it as clear as possible with my limited knowledge.
|P
A |--------C-------|B
L1 |P L2
The arms touch the bar, naturally.A |--------C-------|B
L1 |P L2
L1 (AC) = 600 mm
L2 (CB) = 400 mm
The length from C to the force P is 200 mm on both sides. It produces a torque that is pointing to the right, toward B.
Where is the maximum shear stress in the shaft and why? I know the relation between shear stress (s) and torque (T)
s = T*radius of bar/I
I is the polar moment of inertia
And I know that 2P * 200mm = Torque about point C