Dr. Sarah Easley is a Senior Engineer in Exponent’s Mechanical Engineering practice. Dr. Easley specializes in solid mechanics, biomechanics, finite element analysis (FEA), and mechanics of materials. Dr. Easley has extensive experience performing numerical analyses of consumer electronics and medical devices. Her doctoral research at the University of California, Berkeley focused on using microstructural imaging, experimental testing, and computational analysis to understand the relationship between bone structure and bone strength and the effects of disease and treatment on that relationship. Her earlier graduate work focused on design and analysis of orthopaedic biomedical devices. Prior to joining Exponent, Dr. Easley worked as an intern at DePuy Orthopaedics in the Research and Development department. During her time there, she developed FEA-based surgical-planning software tools for predicting kinematic performance of knee replacement devices. She also has experience using shop equipment such as lathes and milling machines, and participated in the design and fabrication of a robot for the national F.I.R.S.T. competition. Academic Credentials and Professional Honors
Ph.D., Mechanical Engineering, University of California, Berkeley, 2010 M.S., Mechanical Engineering, University of Denver, 2004 B.S., Computer Engineering, University of Denver (honors), 2001 Outstanding Graduate Student Instructor Award, 2008 Berkeley College of Engineering Fellowship, 2005–2006 University of Denver Alumni Scholar, 1997–2001 Stanley Cibrowksi Foundation Award for Engineering Excellence, 1997–2001 Licenses and Certifications
Registered Professional Mechanical Engineer, California, #36388 Languages
French (Conversational) Publications
Easley SK, Jekir MG, Burghardt AJ, Li M, Keaveny TM. Contribution of the intra-specimen variations in tissue mineralization to PTH- and raloxifene-induced changed in stiffness of rat vertebrae. Bone 2010; 46:1162–1169. Bevill G, Easley SK, Keaveny TM. Side-artifact errors in yield strength and elastic modulus for human trabecular bone and their dependence on bone volume fraction and anatomic site. Journal of Biomechanics 2007; 40:3381–3388. Easley SK, Pal S, Tomaszewski PR, Petrella AJ, Rullkoetter PJ, Laz PJ. Finite element-based probabilistic analysis tool for orthopaedic applications. Computer Methods and Programs in Biomedicine 2007; 85:32–40. Halloran JP, Easley SK, Petrella AJ, Rullkoetter PJ. Comparison of deformable and elastic foundation finite element simulations for predicting knee replacement mechanics. Journal of Biomechanical Engineering 2005; 127:813–818. Selected Presentations and Published Abstracts
Easley SK, Jekir MG, Lu G, Torello D, Li M, Keaveny TM. Lack of effect of ovariectomy and PTH treatment on the biomechanical material properties of bone tissue in rat vertebrae. 31st Annual Meeting of the American Society for Bone and Mineral Research, Denver, CO, 2009. Easley SK, Jekir MG, Burghardt AJ, Li M, Keaveny TM. Effects of PTH and raloxifene on tissue mineralization and vertebral stiffness in rats. 55th Annual Meeting of the Orthopaedic Research Society, Las Vegas, NV, 2009. Easley SK, Shindich D, Hernandez CJ, Keaveny TM. Effects of resorption cavities on strength of trabecular bone. 30th Annual Meeting of the American Society for Bone and Mineral Research, Montréal, Canada, 2008. Easley SK, Jekir MG, Bennett CG, Li M, Keaveny TM. Effect of PTH and raloxifene on cortical and trabecular microstructure, cortical-trabecular load sharing, and tissue material properties of whole rat vertebrae. 54th Annual Meeting of the Orthopaedic Research Society, San Francisco, CA, 2008. Easley SK, Jekir MG, Kazakia GJ, Majumdar S, Keaveny TM. Role of tissue mineralization, as measured by micro-CT, on apparent and effective tissue elastic moduli of human trabecular bone. 53rd Annual Meeting of the Orthopaedic Research Society, San Diego, CA, 2007. Easley SK, Rullkoetter PJ. Efficient finite element model prediction of TKR constraint. 52nd Annual Meeting of the Orthopaedic Research Society, Chicago, IL, 2006. Easley SK, Tomaszewski PR, Petrella AJ, Rullkoetter PJ, Laz PJ. Effect of dimensional variability on hip stem reliability. 7th World Biomaterials Congress, Sydney, Australia, 2004.
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Penmetsa J, Easley SK, Petrella AJ, Rullkoetter PJ. Creep of UHMWPE acetabular cups during gait loading. 50th Annual Meeting of the Orthopaedic Research Society, San Francisco, CA, 2004. Halloran J, Easley SK, Penmetsa J, Laz PJ, Petrella AJ, Rullkoetter PJ. Efficient dynamic finite element rigid body analysis of TJR. American Society of Mechanical Engineers Summer Bioengineering Conference, Key Biscayne, FL, 2003. Penmetsa J, Easley SK, Petrella AJ, Rullkoetter PJ. Effect of head size, clearance, and poly thickness on creep of acetabular cups. 29th Meeting of the Society for Biomaterials, 2003. Prior Experience
Research Intern, DePuy Orthopaedics, 2004 Technology Intern, Accenture, 2000 Professional Affiliations
American Society of Mechanical Engineers (member)
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ALLA DEFINITIVA RICERCA DEL MASSIMO SVILUPPO FISICO SENZA STEROIDI - (ECCO PERCHE' I METODI CLASSICI NON FUNZIONANO) Sembra un titolone di quelli che apparivano nelle più famose riviste di culturismo negl’anni novanta, che facevano parte di quegli eterni dibattiti sul metodo “Mentzeriano” e quello del francese S.Nubret. Allora perché rispolverare nuovamente questi titoloni un po�
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