Presentation Details
Obtaining macroscopic properties from a mesoscale thermomechanical model of concrete
Wednesday, 11 Oct 2017; 10:50 - 11:10 in room 7.31
In Session:
MS13-1: Multiscale Methods for Complex Materials (Show complete Mini Symposium)
Wednesday, 11 Oct 2017; 10:30 - 12:30 in room 7.31
Show complete Session
1st and presenting Author
Christoph Pohl
Safety of Structures
Federal Institute for Materials Research and Testing
Berlin, Germany
Safety of Structures
Federal Institute for Materials Research and Testing
Berlin, Germany
2nd Author
Jörg F. Unger
Safety of Structures
Federal Institute for Materials Research and Testing
Berlin, Germany
Safety of Structures
Federal Institute for Materials Research and Testing
Berlin, Germany
Micro Abstract:
A coupled thermomechanical mesoscale model for concrete under heating is presented. When considering the heterogeneous structure under coupled loads, complex macroscopic material properties can be modelled using simple constitutive relations. For instance, damage evolution is directly driven by the incompatibility of thermal strains between matrix and aggregates. Without prescribing $f_c=f(T)$, a decline in compressive strength with rising temperatures will be shown.