Modeling and Simulation of Combined Bending-torsion Experiment Based on ABAQUS

Hollow shaft is widely used in aviation, vehicle, construction, electrician, and other fields. Bending-torsional resistance is one of the most important mechanical properties of the hollow shaft. The traditional test has a long testing time, high cost, and strict requirements on the sample size. In addition, it is difficult to measure the stress in special areas, such as the inner diameter of the hole and narrow gaps, because the strain gauge has a certain size. To solve this problem, a three-dimensional finite element model was established to study the bending-torsional resistance of the hollow shaft. The color stress nephograms and rich data are obtained by simulation. The results showed that Mises stress of the hollow shaft increased with the indenter pressure. However, this increase is slowing down. The maximum Mises stress of the shaft reached 497.6 MPa when the pressure was 40 kN. The maximum Mises stress occurred at the position where the shaft contacted the base. Using simulation techniques to study the bending and twisting resistance of the hollow shaft is feasible.