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  • 1
    facet.materialart.
    Unknown
    Design and Testing of Braided Composite Fan Case Materials and Components (2009)
    In:  Other Sources
    Details
    Publication Date: 2019-07-12
    Description: Triaxial braid composite materials are beginning to be used in fan cases for commercial gas turbine engines. The primary benefit for the use of composite materials is reduced weight and the associated reduction in fuel consumption. However, there are also cost benefits in some applications. This paper presents a description of the braided composite materials and discusses aspects of the braiding process that can be utilized for efficient fabrication of composite cases. The paper also presents an approach that was developed for evaluating the braided composite materials and composite fan cases in a ballistic impact laboratory. Impact of composite panels with a soft projectile is used for materials evaluation. Impact of composite fan cases with fan blades or blade-like projectiles is used to evaluate containment capability. A post-impact structural load test is used to evaluate the capability of the impacted fan case to survive dynamic loads during engine spool down. Validation of these new test methods is demonstrated by comparison with results of engine blade-out tests.
    Keywords: Composite Materials
    Type: ISABE-2009-1201 , E-17015
    Format: text
    Location Call Number Expected Availability
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    NASA TECHNICAL REPORTS
  • 2
    facet.materialart.
    Unknown
    Ballistic and Cyclic Rig Testing of Braided Composite Fan Case Structures (2015)
    In:  CASI
    Details
    Publication Date: 2019-08-13
    Description: FAA fan blade-out certification testing on turbofan engines occurs very late in an engine's development program and is very costly. It is of utmost importance to approach the FAA Certification engine test with a high degree of confidence that the containment structure will not only contain the high-energy debris, but that it will also withstand the cyclic loads that occur with engine spooldown and continued rotation as the non-running engine maintains a low rotor RPM due to forced airflow as the engine-out aircraft returns to an airport. Accurate rig testing is needed for predicting and understanding material behavior of the fan case structure during all phases of this fan blade-out event.
    Keywords: Composite Materials; Structural Mechanics; Quality Assurance and Reliability; Aircraft Design, Testing and Performance
    Type: ISABE-2015-20232 , GRC-E-DAA-TN24867 , International Symposium on Air Breathing Engines; Oct 25, 2015 - Oct 30, 2015; Phoenix, AZ; United States
    Format: application/pdf
    Location Call Number Expected Availability
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    NASA TECHNICAL REPORTS
  • 3
    facet.materialart.
    Unknown
    Design and Testing of Braided Composite Fan Case Materials and Components (2009)
    In:  CASI
    Details
    Publication Date: 2019-07-13
    Description: Triaxial braid composite materials are beginning to be used in fan cases for commercial gas turbine engines. The primary benefit for the use of composite materials is reduced weight and the associated reduction in fuel consumption. However, there are also cost benefits in some applications. This paper presents a description of the braided composite materials and discusses aspects of the braiding process that can be utilized for efficient fabrication of composite cases. The paper also presents an approach that was developed for evaluating the braided composite materials and composite fan cases in a ballistic impact laboratory. Impact of composite panels with a soft projectile is used for materials evaluation. Impact of composite fan cases with fan blades or blade-like projectiles is used to evaluate containment capability. A post-impact structural load test is used to evaluate the capability of the impacted fan case to survive dynamic loads during engine spool down. Validation of these new test methods is demonstrated by comparison with results of engine blade-out tests.
    Keywords: Composite Materials
    Type: NASA/TM-2009-215811 , ISABE-2009-1201 , E-17015-1 , 19th ISABE Conference (ISABE 2009); Sep 07, 2009 - Sep 11, 2009; Montreal, Ontario; Canada
    Format: application/pdf
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    NASA TECHNICAL REPORTS
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