1. Ph.D. Candidate, Dept. of Civil and Environmental Engineering, Univ. of Delaware, 301 DuPont Hall, Newark, DE 19716.
2. Ph.D. Candidate, Dept. of Mechanical Engineering and Center for Composite Materials, Univ. of Delaware, 126 Spencer Lab, Newark, DE 19716.
3. Associate Professor, Dept. of Civil and Environmental Engineering, Portland State Univ., 1930 SW 4th Ave., Portland, OR 97201 (corresponding author).
4. Associate Professor, Dept. of Mechanical Engineering and Center for Composite Materials, Univ. of Delaware, 126 Spencer Lab, Newark, DE 19716.
5. Associate Professor, Dept. of Civil and Environmental Engineering, Univ. of Delaware, 301 DuPont Hall, Newark, DE 19716.