1. Department of Mechanical Engineering, Faculty of Engineering, National University of Singapore, 117575, Singapore
2. Institute of Materials Research and Engineering (IMRE), A*STAR (Agency for Science, Technology and Research), 2 Fusionopolis Way, 138634, Singapore
3. Pillar of Engineering Product Development, Singapore University of Technology and Design (SUTD), 8 Somapah Road, 487372, Singapore