Dr AliGadhib Lecture 11 Objective 1 Discuss behavior
Dr. Ali-Gadhib Lecture - 11 Objective: - 1) Discuss behavior of torsional loading on a long 2) circular straight member such as shaft or tube. 3) 2) Calculate the torsional stress, deformation and 4) strain. Notice the deformation of the rectangular element when this rubber bar is subjected to a torque.
Dr. Ali-Gadhib Angle of twist
Dr. Ali-Gadhib Shearing Strain / Angle of twist
Dr. Ali-Gadhib Shearing Strain The shear strain for the material increases linearly with , i. e. , = ( /c) max
Dr. Ali-Gadhib Summary: When torsion applied to a member, it causes only shear strain and shear stress. T→ → Shear strain varies linearly from zero at shaft center to a maximum value at the surface such that: Shear stress varies linearly from zero at shaft center to a maximum value at the surface such that: When torque is applied to the shaft it does not change its length, it only rotates its plane with an angle , called angle of twist which is maximum at the face end.
Dr. Ali-Gadhib Where,
Dr. Ali-Gadhib Solid Shaft.
Dr. Ali-Gadhib Tubular Shaft.
Dr. Ali-Gadhib a) Internal Loading. ( Ti using static's) b) Section Property. ( Ci, Co, J) c) Torsion Formula.
Dr. Ali-Gadhib Figure
Dr. Ali-Gadhib Solution:
Dr. Ali-Gadhib
Dr. Ali-Gadhib Solution:
Dr. Ali-Gadhib
- Slides: 14