1. Senior Project Officer, Center of Excellence for Composite Structure Technology, Dept. of Aerospace Eng., Indian Institute of Technology, Kharagpur-721302, India (corresponding author).
2. Professor, Dept. of Aerospace Eng., Indian Institute of Technology, Kharagpur-721302, India.
3. Associate Professor, School of Civil, Environmental and Mining Eng., Univ. of Adelaide, Adelaide, South Australia 5005.