ELASTIC CONSTANTS AND INTERNAL FRICTION OF REINFORCED COMPOSITES

H. Ledbetter

We describe experimental studies on the anisotropic elastic constants and internal friction of reinforced composites. Reinforcement types include fiber and fabric. Studied materials include boron-aluminum, glassepoxy, boron-epoxy, graphite-epoxy, and aramid-epoxy. We made most measurements with a Marx three-component oscillator at kilohertz frequencies. In all cases, elastic-constant direction dependence fit relationships derived for homogeneous monocrystals. Usually, elastic stiffness and internal friction show an inverse relationship. In no case did the inclusion-matrix interface appear to contribute significantly to internal friction .

Domaines: Articles anciens

H. Ledbetter. ELASTIC CONSTANTS AND INTERNAL FRICTION OF REINFORCED COMPOSITES. Journal de Physique Colloques, 1985, 46 (C10), pp.C10-573-C10-578. ⟨10.1051/jphyscol:198510128⟩. ⟨jpa-00225331⟩