Under the set parameters, the gear model is simulated. As shown in the figure, the trend distribution of stress intensity […]

The modeling module of ABAQUS software can effectively establish three-dimensional models, but most of them are suitable for three-dimensional model

The characteristics of crack propagation under the influence of external force factors are as follows: 1) The crack surface is

Through verification, 40 test data under 5 load levels meet the requirements of lognormal distribution. Therefore, the distribution function f

According to the differences of loading methods, structural types and working modes of gear test devices, they can be divided

The main form of gear failure is bending fatigue failure. According to the failure physical stress intensity model, it is

As an important index of engineering fracture analysis, stress intensity factor is adopted by most scholars. The proposal of stress

Multiply both sides of Paris formula by Da and integrate to obtain the formula: By substituting the stress ratio r

Comparing the solid line and dotted line in Figure 1, for the same material, the value of plane stress under

As the carrier of simulation calculation, grid plays a decisive role in the quality of simulation results. The selection of

1) Define the ultimate load and maximum fatigue load The sample is fixed on the fixture by two round pins.

The fatigue fracture process of metal materials can be divided into three stages: crack initiation, propagation and instantaneous fracture. In

According to the formula, the stress intensity factors Ki, Kii and kiII are mainly used to characterize the stress field

At present, the research on the law of fatigue crack growth mainly uses experimental methods and numerical analysis methods. According