PSI - Issue 79

Victor Rizov et al. / Procedia Structural Integrity 79 (2026) 109–116

116

/ L m m 4

0.5 1

/ L m m 4

1.0 1

/ L m m 4

2.0 1

= L

= L

= L

Fig. 5. The SERR vs.  (curve 1 – at

, curve 2 – at

and curve 3 – at

).

4. Conclusions The theoretical study of longitudinal fracture in a continuously inhomogeneous non-linear viscoelastic structure with two members (horizontal and vertical) rotating around a motionless horizontal axis performed in this paper indicates that: 1) Increasing of 1 2 / l l ratio causes a quick growth of the SERR; 2) Increasing of 1 4 / L L R R ratio induces reduction of the SERR; 3) The SERR reduces when the 4 1 / L L   ratio grows; 4) The increase of the parameters,  and  , causes growth of the SERR; 5) Growth of 1 4 / L L m m ratio leads to increase of the SERR. References Bohidar, S.K., Sharma, R., Mishra, P.R., 2014. Functionally graded materials: A critical review. International Journal of Research 1, 289-301. El-Galy, I.M., Saleh, B.I., Ahmed, M.H., 2019. Functionally graded materials classifications and development trends from industrial point of view, SN Appl. Sci. 1, 1378. Kieback, B., Neubrand, A., Riedel, H., 2003. Processing techniques for functionally graded materials. Materials Science and Engineering: A 362, 81-106. Kou, X.Y., Parks, G.T., Tan, S.T., 2012. Optimal design of functionally graded materials, using a procedural model and particle swarm optimization, Computer Aided Design 44, 300-310. Mahamood, R.M., Akinlabi, E.T., 2017. Functionally Graded Materials. Springer. Nemat-Allal, M.M., Ata, M.H., Bayoumi, M.R., Khair-Eldeen, W., 2011. Powder metallurgical fabrication and microstructural investigations of Aluminum/Steel functionally graded material. Materials Sciences and Applications 2, 1708-1718. Reichardt, A., Shapiro, A.A. , Otis, R., Dillon, R.P. , Borgonia, J.P., Mc-Enemey, B.W., 2020. Advances in additive manufacturing of metalbased functionally graded materials, International Materials Reviews 66, 1-29. Rizov, V.I., 2017. Analysis of longitudinal cracked two-dimensional functionally graded beams exhibiting material non-linearity. Frattura ed Integrità Strutturale 41, 498-510. Rizov, V.I, Altenbach, H., 2020. Longitudinal fracture analysis of inhomogeneous beams with continuously varying sizes of the cross-section along the beam length, Frattura ed Integrità Strutturale 53, 38-50. Saiyathibrahim, A., Subramaniyan, R., Dhanapl, P., 2016. Centrefugally cast functionally graded materials – review. International Conference on Systems, Science, Control, Communications, Engineering and Technology, 68-73. Yan Li, Zuying Feng, Liang Hao, Lijing Huang, Chenxing Xin, Yushen Wang, Emiliano Bilotti, Khamis Essa, Han Zhang, Zheng Li, Feifei Yan, Ton Peijs, 2020. A review on functionally graded materials and structures via additive manufacturing: from multi-scale design to versatile functional properties. Adv Mater Technol. 5,1900981.