2 results about "Surface function" patented technology

The application discloses a design method of a negative Poisson's ratio porous structure based on a three-period minimal surface, and belongs to the field of computer-aided design, and the specific operation steps are as follows: according to an initial minimal surface function, an extended minimal surface is constructed and solidified; considering the geometric characteristics of the generated porous structure and the buckling mode under the critical load, a problem model of constructing the extended three-period minimal surface with the negative Poisson's ratio is established; then, the problem model is simplified according to the geometric characteristics of the porous structure, and the construction parameters of the minimal surface porous structure with the negative Poisson's ratio are obtained through a step-by-step search method. The application realizes the coupling of the negative Poisson's ratio material and the minimal surface porous structure, two commonly used metamaterials, improves the performance and application range of the material, and can be used for guiding engineering design.