BUILDING THE LINK BETWEEN BASIC MECHANICS AND PRACTICE BY OPEN EXPERIMENT—STRESS ANALYSIS OF THIN-WALLED CYLINDER AS AN EXAMPLE¹⁾

Taking the stress analysis of a thin-walled cylinder as an example, an open experiment is designed. Based on the knowledge of materials and elasticity mechanics, the stress analysis of the thin-walled cylinder is described to model similar structures such as pop-up can and gas tank. The internal pressure and strength of the thin-walled cylinder are analyzed through theoretical analysis, tension experiment and electrical measurement experiment. The experimental results are in good agreement with those of theoretical analysis. The achievement degree of open experiment shows that this experiment has a certain interest and professionalism. Students have a positive attitude and recognize that the comprehensive application ability has been improved. However, this research also reveals some problems in this experiment. It provides a powerful reference for the further improvement of the open experiment.