K. Jayakrishna, Vimal K.E.K., S. Aravind Raj, Asela K. Kulatunga, M.T.H. Sultan, J. Paulo Davim, India.) Jayakrishna, K. (School of Mechanical Engineering, Vellore Institute of Technology, Vellore, Malaysia) Sultan, M.T.H. (Univ Putra Malaysia, Selangor, Portugal) Davim, J. Paulo (University of Aveiro, Vimal K. E. K.