- Problem 4 Some Biomechanical Experts And You Might Too If You Watch The Youtube Video Believe That Kevin S Fracture P 1 (119.01 KiB) Viewed 35 times
Problem 4: Some Biomechanical Experts (and you might too if you watch the YouTube video) believe that Kevin's fracture p
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Problem 4: Some Biomechanical Experts (and you might too if you watch the YouTube video) believe that Kevin's fracture p
Problem 4: Some Biomechanical Experts (and you might too if you watch the YouTube video) believe that Kevin's fracture pattern was a failure due to torsional load, as he was flying through the air laterally before he landed. Assume the lateral force when landing Fx, is parallel to the x-axis, and acts with a moment arm Lma=100 mm about the ankle where the tibia is attached. Assume the foot is rigidly attached to the tibia at the ankle, and that the top of the tibia is fixed at the knee joint. Kevin's Bone has an Elastic Modulus E=15GPa and Poisson's Ratio v=0.3. Assume Kevin's Tibia can be represented by a homogenous hollow cylinder of bone, with length Ltbb=450 mm, and a uniform cross section with an outer radius, router =40 mm and inner radius rinner =30 mm. If the bone fractured at Fx=2000N, what is the failure shear stress τfall of Kevin's bone? What angle is Kevin's foot turned when his tibia breaks? 2 point bonus: Describe and/or Draw what the fracture pattern would look like?
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