(Feb 16th) In this video lecture, Prof. Lisa Pruitt discusses Contact Stress in Devices and Stress Shielding.
Topics in this lecture:
Stress shielding in joint replacements, loading at hip joint, osteolysis, THR material requirements, biocompatibility, THR procedure, fixating implant, solution to fracture problem, bone loss - stress shielding, composite beam theory, compressive stress - axial loading and bending, bone resorption, conformity and contact stresses, device longevity
This course of UC Berkeley - Bio Engineering/ME C117: Structural Aspects of Biomaterials - provides an overview of medical devices, FDA regulatory issues, biocompatibility and sterilization technology. It examines biomechanical properties: isotropy/anisotropy, stiffness, bending stresses, contact stresses, multiaxial loading, plasticity, fatigue, fracture, wear, corrosion, design issues. Also covered: Orthopedics, Dental, Cardiovascular, and Soft Tissue Reconstruction.Professor Pruitt's current research is focused on fatigue and fracture micromechanisms, cyclic damage zones, and evolution of structure due to cyclic loading and environment in advanced polymers and biomaterials.