1. Department of Mechanical Engineering, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208-3109, United States
2. Center for Hierarchical Materials Design, Northwestern University, 2205 Tech Drive, Evanston, Illinois 60208-3109, United States
3. Department of Civil & Environmental Engineering, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208-3109, United States