Add Surface Grains
Add Surface Grains roughens the surface by adding grains on the surface of the material ID selected with Roughen Material ID.
Grain Material
Choose a Grain Material for the added surface grains from the material database. The next available ID is assigned to the grains and the material of the grains can be selected from the database after clicking the button. For example, if the structure contains one material with material ID 01, the grains are assigned to material ID 02.
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Number of Grains
The parameters Number of Grains per volume (given in 1/µm³) defines the number of grains added to a certain material in the domain.
Observe now the effect of adding different amounts of grains with a radius of 3 µm to a cube.
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Radius Distribution
The parameter Radius Distribution defines the size of the grains added to a certain material in the domain.
By clicking the Edit... button, the Radius Distribution of the grains can be set to be a Constant value, or to follow a distribution (Uniformly in interval, Gaussian, Probability Distribution, or Log-Normal).
Observe the effect of always adding grains (0.1 /µm3) of different radius (1 µm, 2 µm, or 2.5 µm) to the cube.
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Save Generated Grains as File
When Save Generated Grains is selected, the added surface grains are saved as SurfaceGrains.gad structure file in the result folder. This file contains the grains’ analytic data.
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Example
As a simplified example, observe the addition of grains with radius 2 µm to objects (box and sphere) with different material IDs. The grains are added in two steps, first to material ID 01 (box), and then to material ID 02 (sphere).
The Number of Grains added is 0.1 grain/µm³ (1 grain for every 10 µm³ of the domain).
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