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FAA William J. Hughes Technical Center for Advanced Aerospace

rosaP Repository & Open Science Access Portal

Technical reports, Tech Notes, and articles that document the FAA’s applied research, engineering, testing and evaluation, and resulting scientific solutions addressing current and future air transportation challenges in collaboration with industry, academia, and other government partners. For more content, visit the FAA Technical Library https://www.faa.gov/about/office_org/headquarters_offices/ang/library/. Bookmark this collection:https://rosap.ntl.bts.gov/collection_faa_tl or https://doi.org/10.21949/1530830.

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Showing 21 - 40 of 603 results
  • Development of a Titanium Alloy Ti6Al4V Generalized Yield Surface Material Model Used in LSDYNA
    Development of a Titanium Alloy Ti-6Al-4V Generalized Yield Surface Material Model Used in LS-DYNA
    Ragone, Fabrizio
    2025-06-01 | PDF
    This thesis is part of a collaborative effort involving George Mason University (GMU), The Ohio State University (OSU), the National Aeronautics and Space Administration (NASA) Glenn Research Center (GRC), and the Federal Aviation Administration (FAA) under the Aircraft Catastrophic Failure Prevention Program (ACFPP). The primary objective of this ...
  • Ductile Fracture of Ti6Al4V Titanium Alloy Under Compressive Stress States
    Ductile Fracture of Ti-6Al-4V Titanium Alloy Under Compressive Stress States
    White, Ethan J.
    2025-05-07 | PDF
    A notoriously challenging modeling and simulation problem is the impact physics of jet engine debris striking the engine case during a fan blade-out or rotor-burst event. The multiplicity of potential failure modes resulting from the impact and subsequent penetration of high-speed engine fragments advances the challenge. The ductile fracture model ...
  • AIA Recommendations Related to Gas Turbine Engine Overspeed Events from High Pressure Turbine Shaft LossofLoad
    AIA Recommendations Related to Gas Turbine Engine Overspeed Events from High Pressure Turbine Shaft Loss-of-Load
    Aerospace Industries Association of America
    2025-05-01 | PDF
    In 2015, the FAA requested the Aerospace Industries Association form a voluntary advisory group related to gas turbine overspeed events resulting from shaft loss-of-load. Motivating the request at the time were engine applicant’s requests to be relieved of considering certain elements of the shaft system from failure consideration in determining th ...
  • Point Cloud Failure Criterion for Impact Modeling of Composite Structures
    Point Cloud Failure Criterion for Impact Modeling of Composite Structures
    Maurya, Ashutosh
    ORCID ICON IMG
    2025-04-01 | PDF
    An orthotropic elasto-plastic damage material model (OEPDMM) suitable for impact analysis of composite materials has been developed through a joint research project funded by the Federal Aviation Administration (FAA) and the National Aeronautics and Space Administration (NASA). The developed material model has been implemented into LS-DYNA®, a comm ...
  • Advanced Early Fire Detection in Aircraft Cargo with MACD And Passive UHF RFID Temperature Sensing While Maintaining False Alarm Resistance
    Advanced Early Fire Detection in Aircraft Cargo with MACD And Passive UHF RFID Temperature Sensing While Maintaining False Alarm Resistance
    Karp, Matthew
    ORCID ICON IMG
    2025-04-01 | PDF
    This study introduces a novel approach to enhance fire protection in aircraft cargo compartments, motivated by the urgency to address catastrophic in-flight fires recorded between 2006 and 2011. The method uses ultra-high frequency (UHF) radio frequency identification (RFID) temperature sensing tags and advanced algorithmic analysis to enhance fire ...
  • Analysis of the Ground Collision Avoidance System Within NASAs Expandable Vehicle Autonomy Architecture
    Analysis of the Ground Collision Avoidance System Within NASA’s Expandable Vehicle Autonomy Architecture
    Hook, Loyd R ;
    Urban, Jude M
    2025-03-01 | PDF
    This document provides comprehensive methodology and results in the evaluation of a Ground Collision Avoidance System (GCAS) tuned for a general aviation airplane. The GCAS under investigation was designed by the Armstrong flight research center at the National Aeronautics and Space Administration (NASA). This research focused on two characteristic ...
  • Aircraft Air Quality and Bleed Air Contamination Detection: Phase 2, Volume 2 [supporting dataset]
    Fox, Richard B ;
    Jones, Byron W
    2025-02-14 | ZIP
    The purpose of this project was to provide a data driven process to identify sensor technologies with the potential for detecting and identifying low levels of contaminants that may occasionally be present in aircraft engine bleed air supplies. Bleed air from a ground-based aircraft propulsion engine and an auxiliary power unit (APU) were used to s ...
    Dataset Supporting Files
  • Structurally Distributed Aircraft Battery
    Structurally Distributed Aircraft Battery
    Kumar, Jitendra ;
    Morgan, Alexander
    2025-02-01 | PDF
    Lithium-ion batteries (LIBs) are critical to the early adoption of electrified small aircraft because LIBs can provide the required energy, power, and cycle life. However, safety is still a concern, especially in dangerous situations like aircraft crashes or operations in harsh conditions. If damaged, the battery can release stored energy fast, lea ...
  • Liion Battery Safety under HighSpeed Impact Diagnosis Prognosis and Risk Mitigation
    Li-ion Battery Safety under High-Speed Impact: Diagnosis, Prognosis and Risk Mitigation
    Kumar, Jitendra
    2025-01-01 | PDF
    Lithium-ion batteries (LIBs) are critical to the early adoption of electrified small aircraft because they can provide the required energy, power, and cycle life. However, safety is still a concern, especially in dangerous situations like aircraft crashes or operations in harsh conditions. If damaged, the battery can release stored energy fast, lea ...
  • Field Validation of the IndoorOutdoor Method for Measurement of Noise Reduction
    Field Validation of the Indoor-Outdoor Method for Measurement of Noise Reduction
    Sharp, Ben ;
    Cox, Eric
    2025-01-01 | PDF
    The Federal Aviation Administration’s (FAA) Airport Improvement Program (AIP) handbook outlines guidance for the funding of noise mitigation projects and the accuracy of existing noise reduction measurements of a structure. Prior research by the FAA to develop best practices for measuring the aircraft noise reduction of building façades resulted in ...
  • Aircraft Air Quality and Bleed Air Contamination Detection OnWing Tests Sensor Technologies and Chemical Sampling Phase 2 Volume 2
    Aircraft Air Quality and Bleed Air Contamination Detection; On-Wing Tests, Sensor Technologies, and Chemical Sampling (Phase 2, Volume 2)
    Fox, Richard B ;
    Jones, Byron W
    2025-01-01 | PDF
    The purpose of this project was to provide a data driven process to identify sensor technologies with the potential for detecting and identifying low levels of contaminants that may occasionally be present in aircraft engine bleed air supplies. Bleed air from a ground-based aircraft propulsion engine and an auxiliary power unit (APU) were used to s ...
  • An Evaluation of Fire Containment Products for Inflight Fires Resulting from Portable Electronic Devices PEDs
    An Evaluation of Fire Containment Products for Inflight Fires Resulting from Portable Electronic Devices (PEDs)
    Keslar, Daniel ;
    Sica, Joe
    2024-12-01 | PDF
    The number of thermal runaway incidents from portable electronic devices (PEDs) in the aircraft cabin is growing at a notable rate. Recent data indicates that lithium battery incidents occur on average more than once per week on passenger aircraft. In response to this problem, many airlines have adopted the use of fire containment products as a mea ...
  • Electric Vertical Takeoff and Landing eVTOL Downwash and Outwash Surveys
    Electric Vertical Takeoff and Landing (eVTOL) Downwash and Outwash Surveys
    Muia, Maria J ;
    Stanley, Joshua
    2024-12-01 | PDF
    As part of the Federal Aviation Administration’s (FAA) effort to establish vertiport design guidance for facilities intended to accept powered lift and special class rotorcraft, it is of growing importance to determine the risk factors related to vertical takeoff and landing (VTOL) operations and how to mitigate them. The airflow generated from the ...
  • Evaluation Of Novel VSTOL Aircraft Pilot Interface Concepts Version 115
    Evaluation Of Novel V/STOL Aircraft Pilot Interface Concepts — Version 1.15
    Feary, Michael ;
    Kaneshige, John
    2024-12-01 | PDF
    This report documents a response to a request from the FAA UAS Integration Office to provide recommendations for candidate methods for evaluating the airworthiness of a broad range of new aircraft concepts. The UAS Integration Office is facing an unprecedented diversity of applicant aircraft and automation configurations in aviation segments genera ...
  • Cold Dwell Fatigue of Titanium Alloys History Current State and Aviation Industry Perspective Supporting Software
    Cold Dwell Fatigue of Titanium Alloys: History, Current State, and Aviation Industry Perspective [Supporting Software]
    Pilchak, Adam ;
    Fox, Kate
    2024-11-13 | ZIP
    This report summarizes the current state of understanding related to cold dwell fatigue (CDF) of titanium alloys, which is a failure mechanism that can lead to uncontained failure of rotating components. Jet engine manufacturers have brought forward their collective field and spin rig experience related to CDF and coupled it with a thorough literat ...
  • Bonded Repairs to Composite Wing Panel Structure Phase 4 Feasibility Study of Panels with FiberOriented Scarf Repairs
    Bonded Repairs to Composite Wing Panel Structure: Phase 4, Feasibility Study of Panels with Fiber-Oriented Scarf Repairs
    Labik, Tim M ;
    Chadha, Reewanshu
    2024-11-01 | PDF
    The Federal Aviation Administration (FAA) and The Boeing Company have investigated safety and structural integrity issues of bonded repair technology. Efforts are focused on testing and analyzing bonded repairs to 40-in x 24-in flat carbon fiber-reinforced composite panels representative of wing skin using the Aircraft Beam Structural Test (ABST) f ...
  • Design Analysis and Test Development of FullScale Fuselage Test Panels to Assess Emerging Metallic Structures Technologies
    Design, Analysis, and Test Development of Full-Scale Fuselage Test Panels to Assess Emerging Metallic Structures Technologies
    Kulak, Michael ;
    Bakuckas, John Jr.
    2024-11-01 | PDF
    The aircraft industry is striving to improve structural performance and reduce costs in fabrication, operation, and maintenance by introducing advanced designs/materials in conjunction with advanced manufacturing/assembly technologies. Collectively these technologies are referred to as Emerging Metallic Structures Technologies (EMST). Prior tests b ...
  • Development of a Revised Test Method for Evaluating the Performance of Evacuation Slide Materials During Exposure to Radiant Heat
    Development of a Revised Test Method for Evaluating the Performance of Evacuation Slide Materials During Exposure to Radiant Heat
    Rehn, Steven ;
    Do, Dung
    2024-10-01 | PDF
    This report summarizes the research effort undertaken by the Federal Aviation Administration (FAA) to develop an improved test methodology for determining the performance of aircraft evacuation slide materials when exposed to radiant heat. A laboratory-scale test method was previously developed by the FAA circa 1983, which used a pressurized cylind ...
  • An Evaluation of Parameters Pertinent to Dry Ice Sublimation
    An Evaluation of Parameters Pertinent to Dry Ice Sublimation
    Anaya, Lindsey ;
    Keslar, Daniel
    2024-10-01 | PDF
    As a result of the COVID-19 (SARS-CoV-2) pandemic, over 12.7 billion vaccine doses were shipped and administered across 184 countries. Transportation via aircraft was a significant contributor in this effort. Many of the COVID-19 vaccines need to be stored at extremely low temperatures to maintain efficacy, therefore, dry ice has been used as a met ...
  • The Effect of Varying the Air Openings around the Sliding Platform in the Radiant Panel Insulation Test
    The Effect of Varying the Air Openings around the Sliding Platform in the Radiant Panel Insulation Test
    Rehn, Steven
    2024-10-01 | PDF
    A radiant panel insulation test round robin with 24 labs was conducted in 2015 and the test results varied considerably between labs. Dimension data about each apparatus was collected from each participating lab and the air openings around the sliding platform were identified as one possible cause of the test discrepancies. Preliminary studies were ...
21 - 40 / 603