PSI - Issue 28

S. Anastopoulos et al. / Structural Integrity Procedia 00 (2019) 000–000

Stylianos Anastopoulos et al. / Procedia Structural Integrity 28 (2020) 2132–2141

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Fig. 5 RVE under the three different shear lo adings

2.4. Periodic Geometry Algorithm Worthy of mention is the use of the periodic geometry algorithm. This makes sure that inclusions that are “cut” by the face of the RVE continue on the opposite side, with the benefits of desired volume fraction being more effectively achieved and fiber dispersion being more realistic (Fig. 6).

Fig. 6 Periodic Geometry Algorithm result representation

2.5. Fiber Orientation To achieve a more homogenous dispersion of inclusions within the RVE volume, inclusions were divided to 16 different categories, all categories being of the same volume fraction of 0,000393 per mille. For each category, a different inclusion orientation was selected (Fig. 7a). In the following Table 1the φ and θ angles for each different category are shown, where φ is the angle between the array of the inclusion and of the x axis and θ is the angle of the array of the inclusion with the z axis (Fig. 7 Errore. L'origine riferimento non è stata trovata. b).