A beam with a rectangular cross section has dimensions of b


A beam with a rectangular cross section has dimensions of b =40 mm and t= 20 mm. The beam is made of 7475-T7351 aluminium and is subjected to a bending moment of M = 900 N*m

What is the critical crack length for fracture?

What crack length can be allowed if a safety factor of 3.0 against brittle fracture is required?

For crack length above what is the safety factor against fully plastic yielding?

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Mechanical Engineering: A beam with a rectangular cross section has dimensions of b
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