Cyclic Damage Processes in High-Performance Concretes in the Experimental Virtual Lab, SPP 2020
Project Partners:
- Oliver Fischer, TU Munich, Chair of Concrete Structures,
- Christian Grosse, TU Munich, Chair of Non-Destructive Testing,
- Dirk Volkmer, University of Augsburg, Chair of Solid State Chemistry,
- Malte Peter, University of Augsburg,
- Institute of Mathematics Applied Analysis
Subproject: Multiscale Modeling of Damage Progression in the Localized Fracture Process Zone of Carbon Short-Fiber-Reinforced High-Performance Concrete Under High-Cycle Tensile and Flexural Loading
Project Description:
The loading of normal and high-strength concrete results in a failure process that can be described as a three-phase progression of accumulated damage. Under tensile or flexural tensile loading, a locally definable area emerges, where a separating crack forms, aligned approximately at right angles to the loading direction. High-cycle and static loading experiments are conducted to capture damage development. The results, combined with high-resolution CT images, are used to develop a multi-scale damage model.
The NDT objective within the subproject is to capture and characterize internal damage, enabling comparisons with surface-based methods. Acoustic emission analysis and coda wave interferometry are employed for this purpose.
Start: 01.04.2017
Duration:
Phase 1: 2017–2020,
Phase 2: 2021–2024
Funding: DFG
Responsible Participants: Manuel Raith, Polina Pugacheva