Versagensverhalten keramischer Faserverbundwerkstoffe mit poroeser Matrix -experimentelle Untersuchungen und Modellierung

摘要

A 2D reinforced carbon/carbon-composite was investigated in tensile tests with variable fiber orientation relative to the loading direction. The experimentel results from the 0°- and 45°- tests allow the derivation of material parameters to be implemented into a macroscopic model describing the materials response under quasi-static loading conditions. The model is based on the damaging concept and plasticity theory and is used to predict strength and elastic constants of the composite under variable angles between fiber orientation and loading direction. The predicted data are confirmed by experimental results.