Project A02

Modeling of local failure mechanisms and macroscopic strength properties of HyPo-materials

Hybrid-porous materials possess a complex microstructure. Besides the spatial arrangement of the pores the distribution of the materials with different properties are of importance for an understanding of the local deformation and damage behaviour. The main objective of the project is the development of numerical models and simulation strategies to capture the material and damage behaviour of hybrid, porous materials. By employing fracture phase field method within a finite element framework, the project models damage evolution and crack propagation at the microscale. Special focus is on the process and application determined conditions that result in damage on the micro-level. In addition, multifunctional material properties will be considered by including thermo-, electromechanical properties. Based on the detailed understanding of the micromechanical damage phenomena macroscopic strength properties are derived. The project dwells on data from characterisation projects, which will provide microstructural geometries as well as material data as inputs for the simulation. The simulation results are again discussed with experimentally projects. Typical load situations are discussed with projects that have a focus on production or construction.

Project leader
Prof. Dr.-Ing. habil. Ralf Müller

Postdoctoral researcher
Dr.-Ing. Alexander Schlüter

Publications