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Hygro- and Thermo-Mechanical Modeling of Wood at Large Deformations: Application to Densification and Forming of Wooden Structures

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Advances in Mechanics of Materials and Structural Analysis

Part of the book series: Advanced Structured Materials ((STRUCTMAT,volume 80))

Abstract

The contribution at hand provides a basis for modeling hygro- and thermo-mechanical processes, especially at large deformations. Therefore, hygro- and thermo-mechanical fundamentals of wood are introduced under consideration of moisture, temperature and displacement dependent processes. The influence of moisture on the density of wood is taken into account as well as a characterization of the interaction of temperature and moisture. Finite element formulations are derived,s together with constitutive laws, as a basis for the numerical solutions. A verification as well as a validation of the specific formulations for the hygro- and thermo-mechanical behavior of different wood species is presented. Finally, the applicability of the proposed finite element descriptions is demonstrated at the densification and forming process of wood.

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Acknowledgements

This research is financially supported by the Deutsche Forschungsgemeinschaft (DFG) under contract KA 1163/22, which is gratefully acknowledged by the authors. Furthermore, the authors would like to thank the Chair of Timber Engineering and Construction Design at Technische Universität Dresden for carrying out the experimental investigations of beech wood in Sects. 6 and 7.1.

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Authors and Affiliations

  1. Institute for Structural Analysis, Technische Universität Dresden, Dresden, Germany

    Robert Fleischhauer & Michael Kaliske

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  1. Robert Fleischhauer
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  2. Michael Kaliske
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Correspondence to Michael Kaliske .

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Editors and Affiliations

  1. Institute of Mechanics Faculty of Mechanical Engineering, Otto-von-Guericke-University Magdeburg, Magdeburg, Sachsen-Anhalt, Germany

    Holm Altenbach

  2. Fakultät 5, Abt. 1, Hochschule Bremen, Bremen, Bremen, Germany

    Frank Jablonski

  3. Institut für Mechanik, Technische Universität Berlin, Berlin, Germany

    Wolfgang H. Müller

  4. Institute of Mechanics, Faculty of Mechanical Engineering, Otto-von-Guericke-University Magdeburg, Magdeburg, Sachsen-Anhalt, Germany

    Konstantin Naumenko

  5. Institute for Lightweight Construction and Design (KLuB), Technische Universität Darmstadt, Darmstadt, Germany

    Patrick Schneider

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Fleischhauer, R., Kaliske, M. (2018). Hygro- and Thermo-Mechanical Modeling of Wood at Large Deformations: Application to Densification and Forming of Wooden Structures. In: Altenbach, H., Jablonski, F., Müller, W., Naumenko, K., Schneider, P. (eds) Advances in Mechanics of Materials and Structural Analysis. Advanced Structured Materials, vol 80. Springer, Cham. https://doi.org/10.1007/978-3-319-70563-7_4

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  • DOI: https://doi.org/10.1007/978-3-319-70563-7_4

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