1. Department of Mechanical Engineering University of Washington Seattle, WA 98195
2. The Institute of Space and Astronautical Science 3-1-1 Yoshinodai, Sagamihara-Shi Kanagawa-Ken 229, Japan
3. Three-D Composites Research 2-1-6 Sengen, Tsukuba-Shi Ibaragi-Ken 305, Japan
4. Institute for Materials Research Tohoku University Sendai 980, Japan