1. Department of Mechanical Engineering, Texas A&M University, College Station, TX 77843 e-mail:
2. U.S. Army Construction Engineering Research Laboratory (CERL), Champaign, IL 61826;
3. Department of Mechanical Engineering, University of Illinois Urbana-Champaign, Urbana, IL 61801 e-mail: ;
4. Mem. ASME Department of Engineering Technology and Industrial Distribution, Texas A&M University, College Station, TX 77843 e-mail:
5. Department of Mechanical Engineering, University of Illinois Urbana-Champaign, Urbana, IL 61801 e-mail:
6. U.S. Army Construction Engineering Research Laboratory (CERL), Champaign, IL 61826 e-mail: