1. Department of Mechanical Engineering, Johns Hopkins University, Baltimore, Maryland 21218, USA
2. Hopkins Extreme Materials Institute, Johns Hopkins University, Baltimore, Maryland 21218, USA
3. Hubei Key Laboratory of Advanced Technology for Automotive Components, Wuhan University of Technology, Wuhan, Hubei 430070, China
4. Institute of Robotics, Shanghai Jiao Tong University, Shanghai 200240, China