Based on the information below, find suitable materials to for a fracture plate. The parameters to select from
are compressive strength, Young’s modulus, and fracture toughness.
A fracture plate is a fixation device that is screwed to a broken bone to facilitate healing. It is fully contained
within the body, is permanent and requires open surgery on the limb in question. The aim is to select a
suitable material or materials for a fracture plate. To do this we compare the properties of bone with those of
non-biological bio-medical materials.
The bones of the scull and limbs generally take the form of bi-structured shells or tubes with an outer layer of
dense, cortical (or compact) bone surrounding a foam-like structure of cancellous (trabecular or spongy) bone.
Ideally, the properties of the material for the plate should match those of bone, meaning a compressive strength
in the range 109-208 MPa and a Young’s modulus >22.4 GPa, typical of the femur, humerous, or tibia. Property
matching is important to avoid bone resorption because an overly stiff plate will take a disproportionate fraction
of the load; the body reacts by reabsorbing the lightly loaded bone – a problem encountered also with hip
implants. You want a material that would not be susceptible to fracture so you need to impose a limit for ????????????
therefore, limit this property to a minimum of 60???????????? · ????0.5.
Save your time - order a paper!
Get your paper written from scratch within the tight deadline. Our service is a reliable solution to all your troubles. Place an order on any task and we will take care of it. You won’t have to worry about the quality and deadlinesOrder Paper Now