NASA NTRS · 19800019959
Transverse microcracking in Celion 6000/PMR-15 graphite-polyimide
Abstract
The effects of room temperature tensile loading and five thermal loadings, in the range -320 F (-196C) to 625F (330CC), upon the development of transverse microcracks (TVM) in Celion 6000/PMR-15 graphite-polyimide 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 laminate analysis with stress- and temperature-dependent material properties.
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Mills, J. S., Herakovich, C. T., Davis, J. G., Jr.. 1979-12-01. Transverse microcracking in Celion 6000/PMR-15 graphite-polyimide. https://ntrs.nasa.gov/citations/19800019959
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