Modeling and simulation of wood forming processes
Thermo-hygro-mechanical processes for densification and forming of wood:
Continuum-mechanical material modeling and structural simulation
Research topics
- Phenomenological description of constitutive characteristics of the wood forming process
- Development of realistic, macroscopic, numerical tool for modeling wood by using an invariant-based anisotropic elasto-plastic material model for wood at large deformations
- Consideration of the influence of temperature and moisture, e.g. by a thermal hygroscopic finite surface element and constitutive formulations
- Parameter identification by comparison of experiments and simulations
- Industry- and application-related simulation of structures made from formed wood by means of the finite element method
Funding
Deutsche Forschungsgemeinschaft (DFG)
In collaboration with
- Professur für Ingenieurholzbau und baukonstruktives Entwerfen, Fakultät Bauingenieurwesen, TU Dresden
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Experimental setup of shear test at spruce wood
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Simulation results of shear test at spruce wood, stresses (left) and plastic deformation (right)
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Schematical depiction of a finite surface element for modeling thermal convection and moisture in-flow and out-flow
![abb. 4](https://tu-dresden.de/bu/bauingenieurwesen/sdt/ressourcen/bilder/forschung/2016/fl/Bild4.png/@@images/392bc7d5-350f-43fa-af6a-e0a1b738d125.png)
Numerical comparison of simulation results and experimental measurements at uniaxial compression tests with different fiber orientations at balsa wood
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Geometry, discretization and boundary conditions for the simulation of a face staggered joint
![abb. 6](https://tu-dresden.de/bu/bauingenieurwesen/sdt/ressourcen/bilder/forschung/2016/fl/Bild6.png/@@images/2eb4ec9c-b361-45b0-851e-92da0bf65c55.png)
Stress distribution as a numerical result of the simulation of a face staggered joint