Finite Element Modeling and Simulation of Torsion Experiment and Teaching Practice in Vocational Colleges

The problem of ineffective experimental teaching of Engineering Mechanics in vocational colleges has always existed. In order to solve this problem, the research team proposed the idea of using simulation technology to improve the teaching quality. The finite element model of torsion experiment was built and simulated on a server. Colorful nephogram and rich data were obtained. The ODB (Open Data Base) shows that the further away from the axis, the higher the Mises stress value. The maximum Mises stress of the model is 44.68 MPa and occurs at the edge of the specimen. Subsequently, we conducted teaching design and teaching practice based on these visualization materials. The results show that the visual materials obtained from the simulation effectively improve the teaching quality of Engineering Mechanics. The interaction between the teacher and the students is significantly increased and the students’ motivation is significantly improved. The finite element method can repeatedly demonstrate the deformation behavior of the sample under torsional action. It not only eliminates the danger in the experiment, but also saves the test cost. Simulation technology can provide rich visual resources and rich data for E-education, which is worth exploring by more researchers.