Isogrid Design Handbook

This handbook presents information needed to design isogrid, triangular integral stiffened structures. Some key points about isogrid are shown in table 1-1. The handbook covers both unflanged and flanged isogrid with the information on flanged isogrid being so designated. All other information applies to unflanged isogrid.

This program, the development of the isogrid design handbook, was conducted by the McDonnell Douglas Astronautics Company at Huntington Beach, California under NASA Contract NAS 8-28619. The contract was administered under the direction of John Key, Marshall Space Flight Center, NASA.

The information in the document was obtained from: (1) the results of analysis, test, and advanced manufacturing studies of Independent Research and Development programs, (2) a phase B space shuttle booster study funded by the NASA Marshall Space Flight Center, (3) an isogrid tank test program funded by the NASA Marshall Space Flight Center, and (4) the Delta program isogrid structural tests funded by the NASA Goddard Space Flight Center.