1. Department of Engineering Mechanics; School of Aerospace Engineering, Tsinghua University; Beijing 100084 China
2. Key Laboratory of Applied Mechanics, School of Aerospace Engineering, Tsinghua University; Beijing 100084 China
3. Zienkiewicz Centre for Computational Engineering & Energy Safety Research Institute; College of Engineering, Swansea University; Swansea SA2 8PP UK
4. INTESIM (Dalian) CO.; LTD.; Dalian 116023 China