A cold rolled steel is designed on basis of maximum shear stress theory. The principal stresses induced at its critical section are 60 MPa and -60 MPa respectively. It yield stress for the shaft material is 360 MPa, FOS of design is

  1. 2

  2. 3

  3. 4

  4. 6

Answer (Detailed Solution Below)

Option 2 :

3

Free
Thermodynamics for All AE/JE ME Exams Mock Test
20 Qs. 20 Marks 20 Mins

Detailed Solution

Download Solution PDF

Concept:

Maximum shear stress theory (Guest & Tresca’s Theory)

According to this theory, failure of the specimen subjected to any combination of a load when the maximum shearing stress at any point reaches the failure value equal to that developed at the yielding in an axial tensile or compressive test of the same material.

For no failure

For design

     

where,

τmax = Maximum shear stress

σy = Yield stress

σ1 and σ2 are maximum and minimum principal stress respectively

Calculation:

Given:

σ1 = 60 MPa, σ2 = -60 MPa, σy = 360 MPa

Now,

Latest SSC JE ME Updates

Last updated on Jul 1, 2025

-> SSC JE ME Notification 2025 has been released on June 30. 

-> The SSC JE Mechanical engineering application form are activated from June 30 to July 21. 

-> SSC JE 2025 CBT 1 exam for Mechanical Engineering will be conducted from October 2 to 31. 

-> SSC JE exam to recruit Junior Engineers in different disciplines under various departments of the Central Government.

-> The selection process of the candidates for the SSC Junior Engineer post consists of Paper I, Paper II, Document Verification, and Medical Examination.

-> Candidates who will get selected will get a salary range between Rs. 35,400/- to Rs. 1,12,400/-.

-> Candidates must refer to the SSC JE Previous Year Papers and SSC JE Civil Mock Test, SSC JE Electrical Mock Test, and SSC JE Mechanical Mock Test to understand the type of questions coming in the examination.

More Maximum Shear Stress Theory Questions

More Theory of Failure Questions

Hot Links: teen patti master gold apk teen patti plus teen patti royal teen patti earning app teen patti win