1. National Key Laboratory of Science and Technology for National Defence on Advanced Composites in Special Environments, Harbin Institute of Technology, Harbin 150001, P. R. China
2. Institute of Mechanical Engineering, Ecole Polytechnique Fédérale de Lausanne, CH-1015 Lausanne, Switzerland
3. Department of Aeronautics and Astronautics, Fudan University, Shanghai 200433, P. R. China
4. College of Sciences, Northeastern University, Shenyang 110819, P. R. China