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A 3D Random Fracture Model Establishment Method

A technology of model building and fissure, applied in random CAD, computer material science, instrument, etc., to achieve the effect of convenience and high cost

Active Publication Date: 2022-04-22
UNIV OF SCI & TECH BEIJING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Therefore, the linear cracks artificially set by simple modeling methods do not match the real cracks.

Method used

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  • A 3D Random Fracture Model Establishment Method
  • A 3D Random Fracture Model Establishment Method
  • A 3D Random Fracture Model Establishment Method

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Experimental program
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Embodiment Construction

[0029] In order to make the object, technical solution and advantages of the present invention clearer, the implementation manner of the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0030] Embodiments of the present invention provide a method for establishing a three-dimensional random fracture model, such as figure 1 As shown, the method includes the following steps:

[0031] Step 1. Determine the shape of the simulation area and set the model size data according to the required model requirements.

[0032] In this step, depending on the required model, the generated model includes geometric bodies such as cuboid, cylinder, sphere, and ellipsoid, such as Figure 2a-Figure 2d shown. Among them, the size data of cuboid includes length Ls, width Ws, height Hs; the size data of ellipsoid includes triaxial length As, Bs, Cs; the size data of sphere includes radius Rs; the size data of cylinder includes radius Rs, he...

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Abstract

The invention discloses a method for establishing a three-dimensional random fracture model, which includes: determining the shape of the simulation area according to the required model requirements, and setting the model size data; determining the direction of the primary fracture and the direction of the secondary fracture according to the requirements of the required model; According to the required model requirements, determine the type of fracture to be established; according to the required model requirements, define the size data of the fracture; according to the required model requirements, define the number of fractures or the overall porosity of the model; generate a fracture model. The crack model establishment method provided by the invention has the advantages of convenience, high efficiency and low cost.

Description

technical field [0001] The invention relates to the technical field of random crack model building, in particular to a method for building a three-dimensional random crack model. Background technique [0002] With the advancement of relevant research in various fields and the development of computer technology, various numerical simulation techniques have been widely used in the study of material properties. In reality, the interior of the material is often not uniform and dense, but is full of cracks and pores. The existence of cracks will have a significant impact on the physical and mechanical properties of the material, making it difficult to obtain numerical simulation results using a compact model formed by simple modeling. Condition. [0003] The usual solution is to establish several large cracks at approximate positions inside the model, but this method is different from the actual situation and cannot describe the real crack situation. There is also a method of m...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F30/20G16C60/00G06F111/08
CPCG06F30/20G16C60/00G06F2111/08
Inventor 石天意付建新宋卫东
Owner UNIV OF SCI & TECH BEIJING