1 / 14

Lecture - 11

Lecture - 11. Torsion. Objective:-. Discuss behavior of torsional loading on a long- circular straight member such as shaft or tube. 2) Calculate the torsional stress, deformation and strain.

shaver
Download Presentation

Lecture - 11

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript


  1. Lecture - 11 Torsion Objective:- • Discuss behavior of torsional loading on a long- • circular straight member such as shaft or tube. • 2) Calculate the torsional stress, deformation and • strain. Notice the deformation of the rectangular element when this rubber bar is subjected to a torque.

  2. Angle of twist 

  3. Shearing Strain / Angle of twist

  4. Shearing Strain  The shear strain for the material increases linearly with , i.e.,  = (/c)max

  5.    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.

  6. Torsion Formula Where,

  7. Polar moment of Inertia J Solid Shaft.

  8. Polar moment of Inertia J Tubular Shaft.

  9. Procedure for Analysis; • Internal Loading. ( Ti using static's) • Section Property. ( Ci, Co, J) • Torsion Formula.

  10. Figure Example:

  11. Solution:

  12. Example:

  13. Solution:

  14. The enD

More Related