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Showing 1 to 6 of 6 for “"PMR-15"”.

  1. Molecular Modeling of PMR-15 Polyimide

    Pruthul Kokkada Ravindranath, FNU

    mtu Repository record

  2. Mechanical properties of degraded PMR-15 resin

    Tsuji, Luis C. (Luis Christophe), 1974-Massachusetts Institute of Technology1999

    … produces a non-uniform degradation state in PMR-15 resin. A surface layer, usually attributed to oxidative degradation, forms. This surface layer has different properties from the inner material. A set of material tests was designed to separate the properties of the oxidized surface layer …

    mit Repository record

  3. Transverse microcracking in Celion 6000 graphite/PMR-15 polyimide composite

    Mills, John StevenVirginia Tech1979

    … of transverse microcracks (TVM) in Celion 6000/PMR-15 graphite-epoxy laminates were investigated. Microcracks were observed using a replicating technique, microscopy and x-ray. The mechanical or thermal load at which microcracking initiates and the ply residual stresses were predicted using …

    vt Repository record

  4. A process simulation model for the manufacture of composite laminates from fiber-reinforced, polyimide matrix prepreg materials

    Lee, Chun-ShoVirginia Tech1993

    … laminates from fiber-reinforced polyimide (PMR-15) matrix prepreg materials. The simulation model is developed in two parts. The first part is the volatile formation model which simulates the production of volatiles and their transport through the composite microstructure during the …

    vt Repository record

  5. Mechanical behavior and damage mechanisms of woven graphite-polyimide composite materials

    Wagnecz, LindaVirginia Tech1987

    The behavior of 8-harness satin woven Celion 3000/PMR-15 graphite-polyimide was experimentally investigated. Unnotched and center-notched specimens from (0)₁₅, (0)₂₂, and (0,45,0, - 45,0,0, - 45,0,45,0)₂ laminates were tested. Material properties were measured and damage development documented …

    vt Repository record

  6. Elastic properties and fracture behavior of graphite/polyimide composites at extreme temperatures

    Garber, D. P. (Donald P.)Virginia Polytechnic Institute and State University1983

    … and fracture strengths of several Celion-6000/PMR-15 laminates was measured. Tests were run at -157,24 (room temperature), and 316°C (-250, 75, and 600°F). Both unnotched and notched laminates were tested. Several failure criteria, developed to predict the uniaxial fracture strength of epoxy …

    vt Repository record