Excerpt from Advanced Composition, Design and Applications: Proceedings of the 29th Meeting of the Mechanical Failures Prevention Group, Held at the National Bureau of Standards, Gaithersburg, Maryland, May 23-25, 1979 Gratitude is expressed to the following members of the nbs Center for Materials Science: Marian L. Slusser for handling financial matters, Delores J. Covey for typing, and Larry W. Ketron for drafting work. Special thanks is extended to Jo Ann Lorden of the nbs Public Information Division for the meeting, hotel and banquet arrangements. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.