John Williams, Ph.D.

A Page Set Navigation element will display here when the current page becomes part of a Page Set

Director of Biomechanics

Education

Ph.D., M.S., Theoretical and Applied Mechanics,Northwestern University

B.S., Biology, University of Hawaii

Positions/Appointments

Professor, Biomedical Engineering, University of Memphis

Staff Engineer, DePuy Orthopaedics

Associate Professor, Orthopaedic Surgery, University of Missouri

Assistant Professor, Orthopaedic Surgery and Bioengineering, University of Pennsylvania

Expertise

Biomechanical Testing
Kinematics
Finite Element Analysis
3-D Modeling

Representative Publications

Laughlin GA, Williams JL, Eick JD. The influence of system compliance and sample geometry on composite polymerization shrinkage stress. J Biomed Mater Res. 2002;63(5):671-8.

Petrie CS, Williams JL. Comparative evaluation of implant designs: influence of diameter, length, and taper on strains in the alveolar crest. A three-dimensional finite-element analysis. Clin Oral Implants Res. 2005 Aug;16(4):486-94.

Snyder RR, Williams JL, Schmidt TL, Salsbury TL. Torsional strength of double- versus single-screw fixation in a pig model of unstable slipped capital femoral epiphysis. J Pediatr Orthop. 2006 May-Jun;26(3):295-9.

Petrie CS, Williams JL. Probabilistic analysis of peri-implant strain predictions as influenced by uncertainties in bone properties and occlusal forces. Clin Oral Implants Res. 2007 Oct;18(5):611-9. Epub 2007 Jun 21.

Williams JL, Gomaa ST. Computational Knee Models of Mobile Bearing Implants Predict Differences in Kinematics During Simulated Squat and Lunge Deep Knee Bending Activities. 8th International Symposium on Computer Methods in Biomechanics and Biomedical Engineering. Feb 27- March 1, 2008. Porto, Portugal.