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From functional properties of frost‐resistant plant tissues towards customised construction materials ‐ A continuum‐mechanical approach

Temperatures below freezing point represent a common threat to standard construction materials, as a phase change of the pore content from liquid water to solid ice frequently leads to damage. However, frost‐resistant plants are able to withstand many cycles of freezing and thawing without any damage. Hence, the objective is to identify and analyse structural factors of frost‐resistant plant tissues and to develop a model, which includes their functional behaviour. Since frost‐resistant plant tissues are formed by ordered arrangements of cells with prescribed shape and size, they can be understood as an (anisotropic) natural porous material. Therefore, a customised modelling strategy based on the Theory of Porous Media (TPM) is proposed, which allows for the description of structural traits and the formation of ice within plant tissues. (© 2016 Wiley‐VCH Verlag GmbH & Co. KGaA, Weinheim)