Energetic modelling for carbon fibre reinforced carbon

Abstract

In this contribution an energetic model for multi-phase materials is developed describing the influence of microstructure on different length scales as well as the evolution of phase changes. Restrictions on the energy functional are discussed. In such a non-convex framework, interfacial contributions serve for relaxing the total energy. Such models can be applied to describe the macroscopic material properties of carbon fibre reinforced carbon where phase transitions between regions of different texture of the carbon matrix are observed on nanoscale as well as columnar microstructures on microscale [2].

Restrictions to the Energy Density in Energetic Models of Carbon Fiber Reinforced Carbon

“…), the phases to be considered, the different contributions in the stored energy as well as the dissipation distance. All this is done in the following sections extending the first works in this direction [21]. We propose an elastic energy density as well as an interface energy for the case of CFC based on available experimental evidence (e.g., on the structure of the interfaces observed).…”