1. Assistant Professor, Institut Jean Lamour, Nancy Université, UMR 7198 CNRS, F-54601 Villers-les-Nancy, France.
2. Dean, College of Engineering, Western Michigan Univ., 1903 W. Michigan Ave., Kalamazoo, MI 49008-5314 (corresponding author).
3. Graduate, Dept. of Civil and Environmental Engineering, Univ. of Alabama in Huntsville, Huntsville, AL 35805.
4. Professor, Université de Cergy-Pontoise, Rue Adolphe Chauvin B.P. 222, Pontoise F-95302 Cergy-Pontoise, France.