You are a research engineer investigating the forced required to fracture the clavicle (shoulder) bone before and after fixation. Since most fractures occur at the middle section of the clavicle, you have isolated this portion of the bone and are performing a tensile test on it to determine its strength. Given the geometry in Fig 1, predict the applied tensile load F at which the bone will fracture. Note: the ultimate tensile strength of cortical bone is approximately 180 MPa. Fig 1 Cross section geometry of clavicle You have fixated the fractured clavicle using a plate, and wish to load this construct to failure (Fig 2). Assume that the plate will remain rigidly attached to the bone and that the plate will fail first. The critical area of the plate is at the location of fracture (section A-A), where the plate withstands all the load (i.e., no load shared with the bone). Draw a FBD of the plate-bone construct at section A-A Predict the applied load F when the plate fail. Note: the load is being applied through the centroid of the bone, not the plate. During the testing the plate fails, but at region B-B. Comment on why this might have occurre Buri Fracture Site Cross section of clavicle Outer radius (r) = 0.75 cm bone thickness=1 mm Plata -A-A Screws 0.7 cm 8 8 cm B 61 Thickness into page = 0.5 cm Plate constructed from stainless steel, ultmale strength - 550 MPa