1 Introduction and objective -- 2 State of the art -- 3 Cottonid -- 4 Investigation methodology -- 5 Results and discussion -- 6 Summary and outlook.

Ronja Victoria Scholz assesses the performance of cellulose-based Cottonid for implementation as sustainable construction material. Quasi-static and fatigue tests are performed in varying hygrothermal test conditions using mechanical testing systems in combination with integrable climate chambers. To investigate humidity-driven actuation properties, customized specimen holders are designed. Accompanying microstructural in situ experiments in analytical devices enable a profound understanding of effective material-specific damage and failure mechanisms. The findings are transferred into strength-deformation diagrams as well as Woehler curves, which enable a comparative evaluation of several process-related and environmental influencing factors and can directly be used for dimensioning of Cottonid elements for structural applications. The interpretation of thermoelastic material reponse during loading is used as scientific value for lifetime prediction. Comprehensive investigations on industrial standard materials as well as structurally optimized Cottonid variants provide a scientific basis for categorizing material's structural and functional performance towards common technical plastics and wood. About the Author Ronja Victoria Scholz works as Group Leader Composites at the Chair of Materials Test Engineering (WPT) at TU Dortmund University and completed her doctorate there. She focusses on scientific issues regarding cellulose-based composite materials and sustainability in engineering.