Overview

Boeing is studying the technologies associated with the application of composite materials to commercial transport fuselage structure under the NASA-sponsored contracts for Advanced Technology Composite Aircraft Structures (ATCAS) and Materials Development Omnibus Contract (MDOC). This report addresses the program activities related to structural performance of the selected concepts, including both the design development and subsequent detailed evaluation. Design criteria were developed to ensure compliance with regulatory requirements and typical company objectives. Accurate analysis methods were selected and/or developed where practical, and conservative approaches were used where significant approximations were necessary. Design sizing activities supported subsequent development by providing representative design configurations for structural evaluation and by identifying the critical performance issues. Significant program efforts were directed towards assessing structural performance predictive capability. The structural database collected to perform this assessment was intimately linked to the manufacturing scale-up activities to ensure inclusion of manufacturing-induced performance traits. Mechanical tests were conducted to support the development and critical evaluation of analysis methods addressing internal loads, stability, ultimate strength, attachment and splice strength, and damage tolerance. Unresolved aspects of these performance issues were identified as part of the assessments, providing direction for future development. Walker, T. H. and Minguet, P. J. and Flynn, B. W. and Carbery, D. J. and Swanson, G. D. and Ilcewicz, L. B. Langley Research Center COMPOSITE STRUCTURES; FUSELAGES; TRANSPORT AIRCRAFT; STRUCTURAL DESIGN; PERFORMANCE PREDICTION; COMPOSITE MATERIALS; MANUFACTURING; DATA BASES; STRUCTURAL FAILURE; DAMAGE ASSESSMENT; LOADS (FORCES); AEROELASTICITY; TOLERANCES (MECHANICS); DESIGN ANALYSIS; PREDICTION ANALYSIS TECHNIQUES; STABILITY...

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9781722925130

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