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  • Other Sources  (3)
  • Composite Materials  (2)
  • Fluid Mechanics and Thermodynamics
  • 2005-2009  (3)
  • 2008  (2)
  • 2006  (1)
  • 1
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    Advanced Thermal Simulator Testing: Thermal Analysis and Test Results (2008)
    In:  CASI
    Details
    Publication Date: 2019-07-13
    Description: Work at the NASA Marshall Space Flight Center seeks to develop high fidelity, electrically heated thermal simulators that represent fuel elements in a nuclear reactor design to support non-nuclear testing applicable to the development of a space nuclear power or propulsion system. Comparison between the fuel pins and thermal simulators is made at the outer fuel clad surface, which corresponds to the outer sheath surface in the thermal simulator. The thermal simulators that are currently being tested correspond to a SNAP derivative reactor design that could be applied for Lunar surface power. These simulators are designed to meet the geometric and power requirements of a proposed surface power reactor design, accommodate testing of various axial power profiles, and incorporate imbedded instrumentation. This paper reports the results of thermal simulator analysis and testing in a bare element configuration, which does not incorporate active heat removal, and testing in a water-cooled calorimeter designed to mimic the heat removal that would be experienced in a reactor core.
    Keywords: Fluid Mechanics and Thermodynamics
    Type: Space Technology and Applications International Forum, STAIF-2008; Feb 10, 2008 - Feb 14, 2008; , Albuquerque, NM
    Format: application/pdf
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    NASA TECHNICAL REPORTS
  • 2
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    Measurement and Prediction of the Thermomechanical Response of Shape Memory Alloy Hybrid Composite Beams (2008)
    In:  Other Sources
    Details
    Publication Date: 2019-07-13
    Description: An experimental and numerical investigation into the static and dynamic responses of shape memory alloy hybrid composite (SMAHC) beams is performed to provide quantitative validation of a recently commercialized numerical analysis/design tool for SMAHC structures. The SMAHC beam specimens consist of a composite matrix with embedded pre-strained SMA actuators, which act against the mechanical boundaries of the structure when thermally activated to adaptively stiffen the structure. Numerical results are produced from the numerical model as implemented into the commercial finite element code ABAQUS. A rigorous experimental investigation is undertaken to acquire high fidelity measurements including infrared thermography and projection moire interferometry for full-field temperature and displacement measurements, respectively. High fidelity numerical results are also obtained from the numerical model and include measured parameters, such as geometric imperfection and thermal load. Excellent agreement is achieved between the predicted and measured results of the static and dynamic thermomechanical response, thereby providing quantitative validation of the numerical tool.
    Keywords: Composite Materials
    Type: LF99-8568 , Jounal of Intelligent Material Systems and Structures; 19; 2; 129-143
    Format: text
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    NASA TECHNICAL REPORTS
  • 3
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    Guidelines for the Utilization of Composite Materials in Oxygen Storage Tanks (2006)
    In:  CASI
    Details
    Publication Date: 2019-07-13
    Description: Space travel is inherently dangerous and, currently, quite expensive. NASA has always done everything possible to minimize the risk associated with the materials chosen for space travel applications by requiring that all materials associated with NASA programs meet the strict requirements established by NASA testing standard NASA-STD-600 1 Flammability, Odor, Offgassing, and Compatibility Requirements and Test Procedures for Materials in Environments that Support Combustion. NASA also has the need to develop lighter weight structural materials that will allow more payload weight to be carried into space. NASA is utilizing composite materials inside the orbiter to lighten the overall weight, but has not considered composite materials for oxygen tanks because of the inherent incompatibility of composite materials with atomic oxygen. This presentation will focus on how oxygen tanks can be built from composite materials. Details will be provided for the design and compatibility testing techniques that will be utilized to create a new NASA standard, NASA-HDBK-6018, which will serve as the starting point for the design of oxygen tanks made from composite materials.
    Keywords: Composite Materials
    Type: 2006 National Space and Missile Materials Symposium; Jun 25, 2006 - Jun 30, 2006; Orlando, FL; United States
    Format: application/pdf
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    NASA TECHNICAL REPORTS
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