1. Professor, Dept. of Civil and Environmental Engineering, Univ. of Vermont, 33 Colchester Ave., Burlington, VT 05405 (corresponding author).
2. Mechanical Engineer, General Dynamics Electric Boat, 24 William St., Pawcatuck, CT 06379.
3. Undergraduate Researcher, Mechanical Engineering, Univ. of Vermont, 33 Colchester Ave., Burlington, VT 05405.