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Mechanical Engineering

Gladius Lewis

photo of Gladius Lewis

Professor

316 Engineering Science Building

E-mail: glewis@memphis.edu


Biomechanics and Biomaterials Research

photo of Gladius Lewis at work

The research of the Material Evaluation Laboratory has led to significant improvements in orthopedic implant technology. The focus of the research is the characterization of mechanical properties of materials that are relevant for fabricating implantable devices. The Materials Evaluation Laboratory has contributed to the development of the only international standard for fatigue testing in acrylic bone cement – ASTM F 2118-01a. This laboratory also provides characterization of acetabular cup liners, including fracture toughness and empirical estimation of in vitro wear rate. Materials scientists have helped orthopedic companies design antibiotic-loaded acrylic bone cement, and have developed a proof-of-concept single-rod scoliosis correction device that imposes less weight on the patient, is cheaper, and allows for a shorter operation time. Researchers also investigate material fatigue, heat flow patterns, and fracture toughness and provide characterization of polymers and empirical estimation of in vitro wear rate of acetabular cup liners. Other projects include lumbosacral stabilization instrumentation and finite element analysis of ankle joint with and without implants.


Links

Biomaterials and Biomechanics Research Group

Test and Measurement Facilities and Equipment