An AISI 4340 steel ship deck, 10-mm wide and 5-mm thick, is subjected to longitudinal te...

An AISI 4340 steel ship deck, 10-mm wide and 5-mm thick, is subjected to longitudinal tensile stress of 100 MPa. If a 60-mm-long central transverse crack is present (Case A, Table 4.2), estimate (a) the factor of safety against crack; (b) tensile stress at fracture.

An AISI 4340 steel ship deck, 10-mm wide and 5-mm thick, is subjected to longitudinal tensile stress of 100 MPa. If a 60-mm-long central transverse crack is present (Case A, Table 4.2), estimate (a) the factor of safety against crack; (b) tensile stress at fracture.