Projects Overview B3/II Mesomechanical modelling of hybrid reinforced concrete structures at impact loading
B3/II Mesomechanical modelling of hybrid reinforced concrete structures at impact loading
The fracture behaviour of fiber-reinforced concrete under impact load is strongly dependent on the meso-structure of the composite. The nucleation and the growth of microcracks up to the size of a macrocrack is influenced by the embedded fibers as well as the meso-structure of the concrete. In addition, under highly dynamic load, on the mesoscale waves propagate and reflect leading to complex wave patterns that have a significant influence on the fracture behaviour. To be able to predict the macroscopic failure of fiber-reinforced concrete structures under impact loads, multiscale simulations are necessary.
Sketch of the multiscale projection method
Within this project the multiscale projection method (MPM) in combination with the XFEM are extended for highly dynamic loads to accurately simulate the crack nucleation and propagation behaviour on the mesoscale as well as on the macroscale. The goal is to make predictions about the quality and the properties of different textile and fiber-reinforcements regarding their impact safety. The extension of the MPM requires an additional projection of the inertia terms between scales and an investigation of dynamic effects along the boundary of the fine scale domain. The validation of the results is planned in cooperation with doctoral candidates of other research training group projects.
Contributors
© Tin Trong Dinh
Doctoral Researcher
(2020-2023)
Dipl.-Ing. Julien Stöcker
Contact
Institute of Structural Analysis
TU Dresden
Georg-Schumann-Straße 7
01187 Dresden
Germany
Principal Investigator
Univ.-Prof. Dr.-Ing. habil. Michael Kaliske
Contact
Institute of Construction Materials
Von-Mises-Bau (VMB), Room 101A Georg-Schumann-Straße 7
01187 Dresden
Germany
- michael.kaliske@tu-dresden.de
- Institute
- +49 351 463 34386
- +49 351 463 37086
in cooperation with
Prof. Dr.-Ing. Stefan Löhnert
Contact
Institute of Mechanics and Shell Structures
TU Dresden, Faculty of Civil Engineering, 3rd floor, room 03-017
August-Bebel-Straße 30
01219 Dresden
Germany
- stefan.loehnert@tu-dresden.de
- Institute
- +49 351 463 43231
- +49 351 463 43235
in cooperation with
Univ.-Prof. Dr.-Ing. habil. Dipl.-Wirt. Ing. Chokri Cherif
Contact
Institute of Textile Machinery and High
Performance Material Technology (ITM)
Hohe Straße 6, Room 138
01069 Dresden
Germany
- chokri.cherif@tu-dresden.de
- Institute
- +49 351 463 39300
- +49 351 463 39301