Figure 7.34 shows, for a gray cast iron, the tensile engineering stress–strain curve in th...

Figure 7.34 shows, for a gray cast iron, the tensile engineering stress–strain curve in the elastic region.

Determine (a) the tangent modulus at 10.3 MPa (1500 psi) and (b) the secant modulus taken to 6.9 MPa (1000 psi).

Figure 7.34 Tensile stress–strain behavior for a gray cast iron.