Issue 65

S. M. J. Tabatabee et alii, Frattura ed Integrità Strutturale, 65 (2023) 208-223; DOI: 10.3221/IGF-ESIS.65.14

After all these parameters are collected, the body will mesh, and the node for the centers will create. Then one of these nodes will be chosen randomly, and after that, one of the holes in the library will select. At first, a random size was assigned to this hole. Then the unit circle is discrete to the number of allowable trying for rotation, and this angle will sort randomly. The selected hole will be placed with these randomly sorted angles, and if the two main rules are satisfied, this hole will be accepted, the angle try will be stopped, and all the mesh nodes inside the hole will be deleted. But if all the angles fail, two situations will happen. First, if any trial and error opportunity is left for the hole, the size will reduce; for the last try case, it will become the minimum size. And if the hole can't fit even with the minimum size, the hole can’t fit, another hole will be randomly selected, and this procedure will continue until one hole can satisfy all the rules or all holes fail. In the case of all failure, the node will remove from the body to prevent the reselection. The outputs of this code are the hole’s number, the location of the holes, their scale factor, and their rotation angle. Fig. 2 shows some examples of the output with the second hole, and Fig. 3 describes the flowchart of the second code.

Figure 3: Flowchart of the porous body generation algorithm.

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