Accession Number:

ADA006157

Title:

Analytical Investigation of Medium STOL Transport Structural Concepts. Volume II5 Isograd Fuselage Study.

Descriptive Note:

Final technical rept. 15 Mar 73-24 Jun 74,

Corporate Author:

DOUGLAS AIRCRAFT CO LONG BEACH CALIF

Report Date:

1974-08-01

Pagination or Media Count:

118.0

Abstract:

Results of a study program to evaluate application of the isogrid structure concept to a medium STOL transport aircraft are presented. Isogrid is an integrally stiffened panel concept incorporating a triangular arrangement of the stiffening material which has been used successfully on space vehicle structure. The fuselage shell structure of the projected C-15 production airplane is used as the study and baseline component. The isogrid concept is evaluated for structural concepts are based on a common set of requirements for ultimate strength, fatigue, and damage tolerance. Because of generally lower stress levels and a general absence of rivet and bolt holes in basis isogrid structure, fatigue and damage tolerance are of reduced criticality relative to baseline structure.

Subject Categories:

  • VSTOL

Distribution Statement:

APPROVED FOR PUBLIC RELEASE