Materials & Structures for Extreme Environments at NASA Glenn Research Center Joyce A. Dever Deputy Chief, Materials & Structures Division 2nd Annual Biomimicry Summit 2017 - Nature Inspired Exploration for Aerospace October 3 - 6, 2017
Materials & Structures for
Extreme Environments
atNASA Glenn Research Center
Joyce A. Dever
Deputy Chief, Materials & Structures Division
2nd Annual Biomimicry Summit 2017 - Nature Inspired Exploration for Aerospace
October 3-6, 2017
High Temperature and
Smart Alloys Branch
Ceramic and Polymer Composites Branch
Structural Dynamics Branch
Environmental Effects and Coatings Branch
Structural Mechanics Branch
Materials Chemistry and Physics Branch
Mechanical Systems Design and Integration Branch
Rotating and Drive Systems Branch
Multiscale and Multiphysics
Modeling Branch
Mechanisms and Tribology Branch
Materials and Structures Division
High Temperature
Materials Systems
Lightweight Materials
and Structures
Electrical and Power
System Materials
Computationally
Modeled Materials
and Structures
Mechanisms and
Drive Systems
Flight Structures
Individual Disciplines Come Together to Achieve Multi-Disciplinary Goals
Addressing Key Aerospace ChallengesHigher temperature and harsh environments for aerospace propulsion and planetary entry
Lightweight requirements for large structures
Ultra-efficient aircraftrequire advances in power system components
Lightweight and durable mechanical system/mechanisms
Materials degradation in harsh space environments
Computational modeling across multiple length scales
High Temperature Materials
High Temperature Non-Metallic
Materials Systems for Turbine Engines
Objective
Develop and validate new engine
material systems to enable high
temperature / high efficiency
turbine engine operations
Successfully Tested Ceramic Matric Composite /
Environmental Barrier Coating System over 300
hours at 10 ksi and 2950°F coating temp
Successfully welded Single Crystal to
Polycrystalline samples while retaining
required mechanical properties
Fine Grain
Bore/Web Alloy
Single Crystal
Cast Rim Alloy
Hybrid (Metallic)
Turbine Disk
Objective
Develop hybrid disk concept
with tailored material
properties to survive
operational environment of
Compact High Overall
Pressure Ratio engines
Lightweight Materials and Structures
Hybrid Gear Technology for
Rotorcraft
Objective
Develop hybrid drive system
components combining metallic
and composite materials to enable
significant weight reduction in
aerospace transmissions
Hybrid gear/shaft/bearing assembly
successfully tested to 5000 Hp8 element array shown in far-field range
Conformal, Lightweight Antennas for
Aeronautical Communications
Technology
Objective
Develop a phased array antenna
which mitigates ground station
interference built out of lightweight,
low dielectric aerogels with
conformal design to reduce drag
and increase simplicity
Electrical and Power System Materials
Spin cast ribbons of advanced soft
magnetic materials
Development of Nano-Crystalline
Magnetic Materials for Increased
Efficiency Power Components
Objective
Develop advanced magnetic
materials to enable high
frequency, high efficiency power
components (such as inductor
filters and transformers) for
aircraft hybrid electric propulsion
Advanced Insulation
Systems for High Voltage
Electric Cables
Objective
Develop advanced insulation
technologies with high thermal
conductivity and high electrical
insulation properties to enable
high frequency, high voltage
cables for aircraft hybrid electric
propulsion
Multilayered Functional Insulation System Concept
Core (Cu or Al)
Computationally Modeled Materials & Structures
Boundary Layer Ingestion (BLI) test result
validate distortion tolerant fan model
Aeroelasticity Modeling of
Distortion Tolerant Turbine
Engine Fan
Objective
Develop capability to accurately
model turbine engine fan in
extreme airflow distortion
environment that exists in advanced
concept aircraft systems (BLI)
Multiscale Modeling of
Composite Materials and
Structures
Objective
Develop capabilities to accurately
model composite structures with
comparable fidelity as state of the
art monolithic material models to
enable significant weight savings
Mechanisms and Drive Systems
High Temperature Shape Memory
Alloy (SMA) Mechanisms
Objective
Capitalize on unique properties of
newly developed superelastic
materials for extreme
applications, including bearings
and tires
NiTi Superelastic Materials
Development
Objective
Develop novel SMA – based
actuation technologies to enable
simplified, robust, lightweight
actuation systems
Spanwise Adaptive Wing Actuator designed and
built using GRC’s NiTiHf high temperature SMA
Non-corrosive, highly
shock tolerant bearings
for ISS urine processor
Superelastic spring tire exhibits
superior traction and durability
over current solid rover wheels
Flight Structures
Loads and Dynamics Testing of Spacecraft Systems
Objective
Evaluate structural integrity of large spacecraft system designs
through testing of structural test articles under expected dynamic
launch loads
Modal testing of Service Module structural test
article at Plumbrook Station
Acoustic launch load testing at Reverberant
Acoustic Test Facility at Plumbrook Station