Gao, Xing Shi, Z. Liu, Changqing Yang, Guang Sevostianov, Igor Silberschmidt, Vadim Inelastic behaviour of bacterial cellulose hydrogel: in aqua cyclic tests Hydrogels are finding increasingly broad use, especially in biomedical applications. Their complex structure - a low-density network of microfibrils - defines their non-trivial mechanical behaviour. The focus of this work is on test-based quantification of mechanical behaviour of a bacterial cellulose (BC) hydrogel exposed to cyclic loading. Specimens for the tests were produced using Gluconacetobacter xylinus ATCC 53582 and tested in aqua under uniaxial cyclic loading conditions in a displacement-controlled regime. Substantial microstructural changes were observed in the process of deformation. A combination of qualitative microstructural observations with quantitative force-displacement relations allowed identification of main deformation mechanisms, confirming inelastic behaviour of the BC hydrogel under a loading-unloading-reloading regime. Elastic deformation was accompanied by non-elastic (viscoplastic) deformation in both tension and compression. This study also aims to establish a background for micromechanical modelling of overall properties of BC hydrogels. Bacterial cellulose hydrogel;Cyclic tension and compression;Deformation mechanisms;In aqua mechanical testing;Inelastic behaviour;Mechanical Engineering not elsewhere classified;Mechanical Engineering 2015-06-12
    https://repository.lboro.ac.uk/articles/journal_contribution/Inelastic_behaviour_of_bacterial_cellulose_hydrogel_in_aqua_cyclic_tests/9571730