1. Dept. of Materials, Oxford University, Parks Rd., Oxford OX1 3PH, GB
2. State Key Laboratory for Strength and Vibration of Mechanical Structures, School of Aerospace Engineering, Xi’an Jiaotong University, Xi’an 710049, CN
3. Space Structures Research Center, Guizhou University, Guiyang 550003, CN
4. Dept. of Mechanical Engineering, University of Bath, North Rd, Claverton Down BA2 7AY, GB
5. Culham Science Centre, UKAEA Culham, Abingdon OX14 3EB, GB
6. Dept. of Materials, Loughborough University, Epinal Way, Loughborough LE11 3TU, GB