Simulation of deformation behavior of beef based on Mooney-Rivlin model

Abstract. In order to study the deformation behavior of beef under impact loads, a cube geometric model (10x10x10 mm) of beef was established using ANSYS Workbench. The beef model was built based on Mooney-Rivlin, and parameters of Mooney-Rivlin were modified to simulate beef. Different stresses of 0.05, 0.06, 0.08 and 0.09 MPa were applied on the upper surface respectively and then deformation nephograms of beef under different stresses were obtained. Besides, nephograms of stress and strain of beef under 0.08 MPa were obtained. The results showed that with the increase of stress, the deformation increased, and the increasing extent became slow in simulation model. The beef model was crushed at the stress of 0.09 MPa, which was greater than the breaking strength of beef. It indicated that the structure of beef would not always respond to the elastic deformation when stress increased to a certain degree and hindering effect became more and more strong. Moreover, its tissue would be destroyed when the stress exceeds a certain limit. This phenomenon conforms to the mechanical properties of meat. The Mooney-Rivlin model could be used to simulate the deformation behavior of beef in a certain range. This study can provide a foundation for the further investigation of the mechanical properties of beef.