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BME Seminar

John Cotton: “Finite element simulation of fatigue damage and creep in bone”

All dates for this event occur in the past.

145 Mount Hall
1050 Carmack Rd
Columbus, OH 43210
United States

Biomedical Engineering Seminar
Tuesday 2/8, 4-5PM
Mount Hall (West Campus), Room 145
 
"Finite Element Simulation of Fatigue Damage and Creep in Bone"
 
John R. Cotton, PhD
Assistant Professor
Mechanical Engineering Department / Biomedical Engineering Program
Ohio University
 
Abstract:

Under repetitive loading, bone exhibits a loss of strength, stiffness, and an accumulation of permanent deformation.  This process has been identified as significant in a number of clinically important situations including insufficiency fractures of the elderly, implant subsidence, and “stress” fractures.  In this talk, Dr. Cotton will present an overview of bone as a material.  He will then present results of experimental fatigue tests of human cortical bone, as well as interpretations of these studies.   The results of these tests will then be implemented into nonlinear finite element models of various geometries including 4-point bend tests, a single trabecula of cancellous bone, and three dimensional cancellous bone samples.

Biographical Information: John R. Cotton, Ph.D.

Dr. Cotton began his career with B.S. and M.S. from the Department of Engineering Science and Mechanics at Virginia Tech. He spent the early 1990s at the Federal Highway Administration's Turner-Fairbank Highway Research Center simulating freeway flows. After taking a year off to backpack around the world, Dr. Cotton returned to Blacksburg, earning a Ph.D. in Engineering Mechanics with an option in Biomechanics in 1998. His dissertation was a mechanical analysis of hair cell ciliary bundles—subcellular structures in the inner ear essential to the sensation of sound and motion.  He then became a research fellow at the University of Southampton in the UK, creating fatigue damage simulations of human bone. Dr. Cotton returned to serve on the faculty at Virginia Tech until 2007, when he moved to Ohio University.  He is an Assistant Professor of Mechanical Engineering and Biomedical Engineering.

Specializing in the area of computational biomechanics, Dr. Cotton has published more than 20 refereed articles and presented over 30 conference papers.  He has taught introductory courses in mechanics, physics, CAD, and numerical methods as well as advanced courses in solid mechanics, finite element analysis, physiological modeling, and mechanics of biological solids.