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Analysis of stainless steel sandwich panels with a metal foam care for lightweight fan blade design
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Min, James B. Ghosn, Louis J. Raj, Sai V. Lerch, Bradley A. Holland Jr., Frederic A. Hebsur, Mohan G. |
| Copyright Year | 2004 |
| Description | The quest for cheap, low density and high performance materials in the design of aircraft and rotorcraft engine fan and propeller blades poses immense challenges to the materials and structural design engineers. Traditionally, these components have been fabricated using expensive materials such as light weight titanium alloys, polymeric composite materials and carbon-carbon composites. The present study investigates the use of P sandwich foam fan blade made up of solid face sheets and a metal foam core. The face sheets and the metal foam core material were an aerospace grade precipitation hardened 17-4 PH stainless steel with high strength and high toughness. The stiffness of the sandwich structure is increased by separating the two face sheets by a foam core. The resulting structure possesses a high stiffness while being lighter than a similar solid construction. Since the face sheets carry the applied bending loads, the sandwich architecture is a viable engineering concept. The material properties of 17-4 PH metal foam are reviewed briefly to describe the characteristics of the sandwich structure for a fan blade application. A vibration analysis for natural frequencies and P detailed stress analysis on the 17-4 PH sandwich foam blade design for different combinations of skin thickness and core volume %re presented with a comparison to a solid titanium blade. |
| File Size | 8627115 |
| Page Count | 10 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_20050198900 |
| Archival Resource Key | ark:/13960/t6c29vk1d |
| Language | English |
| Publisher Date | 2004-01-01 |
| Access Restriction | Open |
| Subject Keyword | Metals And Metallic Materials Propeller Blades Dynamic Structural Analysis Metal Foams Structural Design Stress Analysis Toughness Sandwich Structures Stainless Steels Rotary Wings Fan Blades Loads Forces Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Article |
