Subproject 6: Constitutive modeling and multi-scale multi-physical simulation of I-FRC
Motivation
I-FRCs are intelligent material combinations. Their multi-physical properties at the structural length scale are determined by the bonding behavior between single components at smaller length scales. The development of I-FRCs aims at the active adjustment of local structural properties as well as deformation patterns. In order to model, analyze, and realistically predict the thermo-electromagnetic-mechanical structural behavior, the constitutive modeling of all composite components as well as the description of potential delamination between materials, under consideration of essential multi-physical processes and phenomena, are required.
State of the art and preliminary research
The intended modeling of the structural components and their electromagnetic extension is based on the thermo-mechanical modeling of the partially inelastic material behavior at finite deformations. The description of failure in the interface layer is based on temperature-dependent finite interface elements. Multi-physical homogenization methods in space and time enable the computation of effective material properties, the scale transition at fully coupled field equations as well as the long-term prediction of structural failure.
Scientific questions and project objectives
The main goals of this subproject involve the development of multi-scale numerical simulation approaches using the finite-element-method as well as the prediction of the bond behavior with respect to the thermo-magneto-mechanical modeling of the components of filler reinforced elastomeric matrices and textiles with tailored integrated functions for the manufacturing of I-FRC. The development of multi-physical approaches should realistically describe the material behavior at finite deformations under consideration of the magnetic, thermal, and displacement field on the meso-scale. Therefore, fundamental balance principles of continuum mechanics are utilized. Moreover, it is intended to realistically describe the structural behavior and potential material damage as a result of multi-physical phenomena. Furthermore, spatial and temporal thermo-magneto-mechanical homogenization methods will be developed to enable the analyzing of structures at the macro-scale and the structural level, based on constitutive approaches with effective parameters. Efficient numerical solutions are important and also in focus of this research in order to provide simulation-based, industrial applications of the novel adaptive structures.
Contact
Institute of Structural Dynamics (ISD), Faculty of Civil Engineering at TU Dresden
© Michael Kretzschmar
head of the institute
NameUniv.-Prof. Dr.-Ing. habil. Michael Kaliske
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