Affiliation: | 1. Department of Materials Science and Engineering, Virginia Polytechnic Institute and State University, Blacksburg, VA, 24061 USA;2. Department of Biomedical Engineering and Mechanics, Virginia Polytechnic Institute and State University, Blacksburg, VA, 24061 USA;3. Department of Mechanical Engineering, Virginia Polytechnic Institute and State University, Blacksburg, VA, 24061 USA |