1. Professor, Dept. of Applied Mechanics and Hydraulics, National Institute of Technology Karnataka, Surathkal, Mangalore 575025, India (corresponding author).
2. Deputy Manager–Projects, Gammon India Limited, Veer Savarkar Rd., Prabhadevi, Mumbai, MH 400025, India; formerly, Graduate Student, Dept. of Applied Mechanics and Hydraulics, National Institute of Technology Karnataka, Surathkal, Mangalore 575025, India.