1. Applied Mechanics of Materials Laboratory Department of Mechanical Engineering Temple University 1947 North 12th Street Philadelphia PA 19122 USA
2. Department of Materials Science and Engineering University of Pennsylvania 3231 Walnut Street Philadelphia PA 19104 USA
3. School of Architecture University of Illinois at Urbana–Champaign Champaign IL 61820 USA
4. Department of Physics and Astronomy University of Pennsylvania 209 South 33rd Street Philadelphia PA 19104 USA