The influence of environmental effects on the mechanical properties of graphite/epoxy laminatesThe time dependent deformational and creep rupture processes in graphite/epoxy laminates are examined as a function of temperature and stress level. The role of accelerated characterization of design materials is discussed, and the use of a nonlinear time-temperature-stress-superposition principle in the determination of compliance master curves as a function of stress and temperature is considered. Creep rupture analytical models are discussed as applied to polymer-matrix composites, and the data is shown to be in general agreement with a logarithmic stress and temperature-dependent delayed fracture model. Comparisons between creep and rupture experiments and phenomenological models are presented.
Document ID
19830042151
Acquisition Source
Legacy CDMS
Document Type
Conference Proceedings
Authors
Brinson, H. F. (Virginia Polytechnic Inst. and State Univ. Blacksburg, VA, United States)
Morris, D. H. (Virginia Polytechnic Inst. and State Univ. Blacksburg, VA, United States)
Griffith, W. I. (Virginia Polytechnic Inst. and State Univ. Blacksburg, VA, United States)
Dillard, D. (Virginia Polytechnic Institute and State University Blacksburg, VA, United States)