PPT Slide

Solution

Since we were given the value of ?12, we must therefore first establish the principal stresses. Invoke Eq. 4-37.

Hence,

?1 = 160 MPa; ?2 = 30 MPa; ?1 = 0

According to Tresca, ?max = (160 - 0)/2 = 80 MPa

For yielding in uniaxial tension:

?0/2 = 75 MPa

Since the 80 MPa > 75 MPa, Tresca criterion would be unsafe.

Previous slide

Next slide

Back to first slide

View graphic version