1. MUL2 Group, Department of Mechanical and Aerospace Engineering, Politecnico di Torino, Torino, Italy;
2. School of Mathematics, Statistics and Applied Mathematics, NUI Galway, Galway, Ireland;
3. Department of Engineering Mechanics, Zhejiang University, Hangzhou, China;
4. Laboratory of Intelligent Materials and Structures, Tambov State Technical University, Tambov, Russia