Journal of Applied Mechanics · 1984 · 15 citations · 0 references
EngineeringMicromechanicsMechanical EngineeringNonlinear ResponseElasticity (Physics)MechanicsPolymer CompositesMaterial NonlinearitiesMaterials ScienceFiber ReinforcementObserved Nonlinear ResponseNonlinear ElasticityComposite TechnologySolid MechanicsUnidirectional Graphite CompositesFiber-reinforced CompositeMechanical PropertiesFiber DirectionElastic PotentialMechanics Of Materials
An elastic potential is proposed that is capable of modeling the reversible portion of the observed nonlinear response of unidirectional graphite fiber composites. The model includes both the stiffening stress-strain behavior as well as the softening Poisson’s response for loading in the fiber direction. The model is compared with experimental results for Celion 6000/PMR-15 graphite-polyimide.