Answer: Hello your question is poorly written attached below is the complete question
answer :
: max value to avoid failure = 59 MPa
; max value to avoid failure = 34.064 Mpa
Explanation:
Attached below is the detailed solution of the given problem
For Tresca criterion : max value to avoid failure = 59 MPa
For Von-Nissen criterion ; max value to avoid failure = 34.064 Mpa