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M F M b h = A steel beam with a rectangular cross-sectional area has a height h 32 mm and breadth b =

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M F M b h = A steel beam with a rectangular cross-sectional area has a height h 32 mm and breadth b = 16 mm. It has a through thickness crack of length a = 4 mm as shown in the figure. The fracture toughness of the plate material is KIC = 80 MPa m. The beam is subjected to combined tensile and bending loading. If the bending moment applied to the beam is M = 600 Nm, determine the maximum tensile force F which can be applied to the beam before brittle fracture occurs. Give your answer in kN to 3 significant figures. Maximum tensile force: F = KN

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