The elastoplastic flexural behaviour of corn stalks

With the purpose of quantifying and understanding elastoplastic flexural behaviour corn stalks, this work presents a novel three-point cyclic bending test for characterizing biomechanical properties controlled stalks. The tests have resulted first-of-its-kind database stalks subjected in repeated bending. Moreover, an experiment-informed stiffness model is introduced to calculate elastic angle limits, stiffnesses (or effective stiffness), plastic ratios as well their variabilities tested samples, revealing unique insights into stalk properties. overall limit decreased (from 3.4 1.7°) with increasing size, whilst increased 7.0 43 N m rad ?1 median value). more consistent independent size where value ranged from 6.9 8.8° ratio 0.40 0.42. Furthermore, statistical analysis samples empirical results presented insightful expressions relate scales responses, or distributions population regression expression also allow parameterizing existing numerical models simulations development sophisticated deformation models. • First-of-its-kind Corn strength dominated by shell. increases diameter. Experiment-informed ready supplying discrete element modeling.