Multiscale 3D characterization of Citrus Maxima for bioinspired conception

Heterogeneous materials demonstrate enhanced specific mechanical properties (properties related to density) which is a serious asset to lighten structures. They are therefore a very promising solution to reduce fuel consomption and CO2 emissions in many transport applications (train, airplane, aerospace). The design of new materials based on the heterogeneous structure of natural materials have been shown to perform better than conventional materials. Among plenty structures of interest, Citrus maxima microstructure seems to be especially suited for low-speed impact protection (packaging, transport safety, personal protections). However the structural description of this fruit has been limited to 2D observations and few 3D observations. The goal of this experiment is to perform a quantitative analysis linking the microstructure and the mechanical behaviour to support effective bioinspired concepts performing protective functions with similar strain mechanisms.