1. Associate Professor, Centre for Advanced Numerical Simulation (CANSIM), Dept. of Civil and Geological Engineering, Univ. of Saskatchewan, Saskatoon, 57 Campus Dr., Saskatoon SK, Canada S7N 5A9. E-mail: amin.elshorbagy@usask.ca
2. Professor, Dept. of Civil and Geological Engineering, Univ. of Saskatchewan, Saskatoon, 57 Campus Dr., Saskatoon SK, Canada S7N 5A9. E-mail: lee.barbour@usask.ca