Within the joint project “DuroBast – Durable and resource-saving composite structural components, based on innovatively pretreated and processed bast fibers” innovative, biopolymeric materials for the production of composites for varying technical applications in large-scale production are developed. The aim is the manufacturing of thermoplastically deformable natural fiber-reinforced composites with low moisture absorbance and improved mechanical properties. They will be implemented in applications, which were inaccessible for natural fibers up to now due to high hygroscopicity and insufficient mechanical strength. The performance and lifetime of composite stuctures is heavily affected by the properties of the constituents, process parameters during consolidation and type of loading in service. Therefore, sub-project 4 focusses on the characterization of temperature- and humidity-dependent fatigue properties of the developed material systems based on a manufacturing parameter variation as well as the assessment of the mechanism-based deformation and failure behavior. Results will be transferred into a mathematical description of the fatigue behavior of natural fiber-reinforced composites under service conditions.
Duration: 2021 until 2024
Project partner: 3 Universities, 2 Research institutes, 7 Industrial enterprises