Question

Assume the tibia is 17.5 in. long and has a constant hollow circular cross-section with an outer diameter of 1.0 in. and an inner diameter of 0.83 in. Assume the hollow center is filled with a 0.83 in. diameter titanium rod.A) What torque would cause the bone to fracture in this new composite leg? What will be the corresponding stress in the titanium rod?B) What will be the angle of twist over the length of the tibia right before it fractured. Assume perfectly linear elastic behavior up until the breaking point. Bone Material Properties: G = 492 ksitfracture= 12 ksi

Answer 1

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