Cutting verification method based on multi-layer leek mechanical model

The invention discloses a cutting verification method based on a multi-layer leek mechanical model, which comprises the following steps: carrying out a shearing experiment on leek rhizomes, observing the fracture behavior of the leek rhizomes in the shearing process, and extracting a force-displacement change relation in the leek root shearing process by utilizing a sensor; establishing a multi-layer leek rhizome mechanical model with a cutting characteristic; carrying out shearing simulation by using a method of coupling multi-body dynamics and a Chinese chive rhizome discrete element, and observing a fracture behavior of a Chinese chive rhizome discrete element model in a shearing process and a characteristic change relation of force-displacement borne by a blade tip; and comparing the force-displacement characteristic curve graphs obtained by the shear simulation and the shear experiment to determine the accuracy of the discrete element model according to the change of the rhizome fracture. The accuracy an