Repeat Prob. 51 for a bar of AISI 1018 hot-rolled steel and: (a) A = 100 MPa,

Repeat Prob. 5–1 for a bar of AISI 1018 hot-rolled steel and:
(a) σA = 100 MPa, σB = 80 MPa
(b) σA = 100 MPa, σB = 10 MPa
(c) σA = 100 MPa, σB = −80 MPa
(d) σA = −80 MPa, σB = −100 MPa