1. Engineered Materials Concepts, LLC, Charlottesville, VA 22901, USA
2. Civil Engineering Department, Zhejiang University, 866 Yuhangtang Road, Hangzhou 310058, P. R. China
3. Engineering Technology Associates, Inc., 1133 E Maple Road, Troy, MI 48083, USA
4. Light Alloy Research Institute, Central South University, Changsha, Hunan 410083, P. R. China
5. State Key Laboratory for Manufacturing Systems Engineering, Xi’an, Shaanxi 710049, P. R. China