Reduction of Part Counts and Composite Materials for Aircraft Structures

626 WordsJan 30, 20183 Pages
Composite materials comprise significantly greater percentages of airframe structural materials used throughout the aerospace manufacturing process. This increased usage has led many individuals within the Air Force (AF) community and Department of Defense (DoD) leaders to restudy the life cycle cost (LCC) models used to estimate the costs for most weapon systems. A series of composite affordability initiatives (CAI) have culminated in significant evidence over the last three decades which aids in better quantifying the impact of primarily advanced composite materials in the airframe structures of aircraft. Current accelerated use of advanced composite materials in aircraft, sporting goods, and medical products is a result of the versatility of composites. This paper finds that a significant relationship exists between the reduction of the part counts and the large scale advanced composite materials used in life cycle cost (LCC) models for aircraft structures. The reduction percentages in the part counts led to reductions in the percentages of touch labor hours in design, design support, testing, tooling, manufacturing, and quality assurance. This percentage of reduction affects most development and production cost categories. Introduction: The available life cycle cost (LCC) models and procurement strategies do not take into consideration the varied manufacturing techniques for advanced composite materials. The increased use of advanced composite materials in aerospace

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