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Modeling algorithm for three-dimensional mesoscopic model of closed-cell aluminium foam

A closed-cell aluminum foam and model modeling technology, which is applied in the field of X-CT (X-ray-computed tomography) image processing of multicellular materials, can solve the problems of random cell wall thickness and other problems, and achieve rapid construction Model, solve the effect of cell adhesion

Pending Publication Date: 2018-10-12
ARMY ENG UNIV OF PLA
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Problems solved by technology

[0005] The purpose of the present invention is to provide a three-dimensional microscopic model modeling algorithm of closed-cell aluminum foam, which solves two problems. modeling problem

Method used

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  • Modeling algorithm for three-dimensional mesoscopic model of closed-cell aluminium foam
  • Modeling algorithm for three-dimensional mesoscopic model of closed-cell aluminium foam
  • Modeling algorithm for three-dimensional mesoscopic model of closed-cell aluminium foam

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Embodiment 1

[0057] Verify the superiority of the improved XCT image processing algorithm invented in this paper.

[0058] In order to verify the superiority of the improved XCT image processing algorithm invented in this paper, the processing results of different algorithms are given below, which are manual processing, improved XCT image processing algorithm and ordinary XCT image processing algorithm, such as image 3 As shown, column A is the result map of manual processing, column B is the result map of the improved XCT image processing algorithm, and column C is the result map of the ordinary XCT image processing algorithm.

[0059] A total of 5 XCT images of closed-cell foamed aluminum were selected from the 201st floor to the 221st floor as the research object, and were processed by manual processing, improved XCT image processing algorithm and ordinary XCT image processing algorithm respectively, and 3 groups of closed-cell foamed aluminum XCT images were obtained. image, resulting...

Embodiment 2

[0062] The superiority of the three-dimensional mesoscopic modeling algorithm of closed-cell aluminum foam invented in this paper is verified.

[0063] In order to verify the superiority of the three-dimensional mesoscopic model modeling algorithm of closed-cell aluminum foam invented in this paper.

[0064] Such as Figure 4 , Figure 5 As shown, the three-dimensional mesoscopic model of the closed-cell aluminum foam established in this paper is given. Figure 4 is a three-dimensional microscopic model of small-cell closed-cell aluminum foam, Figure 4 (a) is a three-dimensional microscopic model of a closed air cell, Figure 4 (b) is a three-dimensional microscopic model of the cell wall; Figure 5 is a three-dimensional microscopic model of large-cell closed-cell aluminum foam, Figure 5 (a) is a three-dimensional microscopic model of a closed air cell, Figure 5 (b) is a three-dimensional microscopic model of the cell wall. Through comparison, it can be found that t...

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Abstract

The invention discloses a modeling algorithm for a three-dimensional mesoscopic model of closed-cell aluminium foam. Binary aluminium foam X-CT sequence images are processed through adoption of an improved XCT image processing algorithm, and the images are converted into a UnsignedChar format; aluminium foam volume attributes are set; the three-dimensional mesoscopic model is drawn; volume data ismapped into screen images; and the three-dimensional mesoscopic model is displayed. According to the modeling algorithm, the cell hole adhesion problem in the XCT images of the closed-cell aluminiumfoam can be effectively solved; a cell hole air three-dimensional mesoscopic model and a cell wall three-dimensional mesoscopic model of the closed-cell aluminium foam can be accurately and reliably established according to the three-dimensional mesoscopic model of the closed-cell aluminium foam established based on the XCT images, and the established models are completely consistent with a true mesoscopic structure of the closed-cell aluminium foam.

Description

technical field [0001] The invention belongs to the technical field of X-CT (X-ray-computerized tomography) image processing of multicellular materials, and specifically relates to a three-dimensional microscopic model modeling algorithm of closed-cell foamed aluminum. Background technique [0002] Closed-cell aluminum foam is a lightweight porous material that has been widely used in engineering due to its excellent mechanical properties. For the closed-cell aluminum foam material, it is mainly composed of the matrix material and the air enclosed in the cells. Due to the randomly distributed mesoscopic structure, its mechanical properties show typical multi-scale characteristics. It is necessary to develop a method that can truly reflect A 3D mesoscopic model of its mesostructural properties. [0003] Professor Zheng Zhijun of the University of Science and Technology of China used the 3D Voronoi technology to invent the 3D mesoscopic model of the closed-cell foamed aluminu...

Claims

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Application Information

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IPC IPC(8): G06T17/00G06T15/08G06T7/155
CPCG06T15/08G06T17/00G06T2207/10081G06T2207/20041G06T2207/30136G06T2210/32G06T7/155
Inventor 张亚栋张锦华王贵坤陈力范俊余方秦彭裴
Owner ARMY ENG UNIV OF PLA
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