The notched bar is subjected to an axial tensile load of P =…

The notched bar is subjected to an axial tensile load of P = 30 kN. The major bar width is D = 296 mm, the minor bar width at the notches is d = 288 mm, and the radius of each notch is r = 4 mm. If the maximum tensile stress in the bar must not exceed 78 MPa, determine the minimum required bar thickness using Neuber’s nomograph (Table 14.3 and Figure 14.10).