Calculation method and system for simplifying boundary stress

The invention provides a calculation method and system for simplifying boundary stress, and the method comprises the steps: carrying out the discretization of a boundary through employing an interpolation method based on the geometric dimension of a to-be-analyzed model, and building a calculation model; on the basis of the calculation model, the obtained boundary surface force or displacement boundary condition of the to-be-analyzed model is combined with a boundary integral formula to calculate a displacement or surface force unknown quantity; and calculating the boundary stress of the to-be-analyzed model by adopting a stress calculation formula based on the boundary surface force and the displacement. According to the method, the boundary is dispersed by adopting the interpolation method, the calculation model is established, the surface force or the unknown displacement quantity is calculated through the boundary integral formula, the boundary stress is calculated through the stress calculation formula,