Issue 46

V. Rizov, Frattura ed Integrità Strutturale, 46 (2018) 158-177; DOI: 10.3221/IGF-ESIS.46.16 177 multilayered functionally graded circular shafts can be controlled by using appropriate material gradients in radial direction. The present paper is a contribution in delamination fracture mechanics of multilayered functionally graded circular shafts exhibiting non-linear mechanical behavior of the material under combined loads. R EFERENCES [1] Hirai, T. and Chen, L. (1999). Recent and prospective development of functionally graded materials in Japan, Material Science Forum, 308-311, pp. 509-514. [2] Mortensen, A. and Suresh, S. (1995). Functionally graded metals and metal-ceramic composites: Part 1 Processing, International Materials Review, 40, pp. 239-265. [3] Nemat-Allal, M.M., Ata, M.H., Bayoumi, M.R. and Khair-Eldeen, W. (2011). Powder metallurgical fabrication and microstructural investigations of Aluminum/Steel functionally graded material, Materials Sciences and Applications, 2, pp. 1708-1718. [4] Neubrand, A. and Rödel, J. (1997). Gradient materials: An overview of a novel concept, Zeit f Met, 88, pp. 358-371. [5] Suresh, S. and Mortensen, A. (1998). Fundamentals of functionally graded materials, IOM Communications Ltd, London. [6] Bohidar, S.K., Sharma, R. and Mishra, P.R. (2014). Functionally graded materials: A critical review, International Journal of Research, 1, pp. 289-301. [7] Paulino, G.C. (2002). Fracture in functionally graded materials, Engineering Fracture Mechanics, 69, pp. 1519-1530. [8] Pan, S.-D., Feng, J.-C., Zhou, Z.-G. and Zhi, W.-L. (2009). Four parallel non-symmetric Mode –III cracks with different lengths in a functionally graded material plane, Strength, Fracture and Complexity: an International Journal, 5, pp. 143-166. [9] Tilbrook, M.T., Moon, R.J. and Hoffman, M. (2005). Crack propagation in graded composites, Composite Science and Technology, 65, pp. 201-220. [10] Rizov, V.I. (2016). Elastic-plastic fracture of functionally graded circular shafts in torsion, Advances in Materials Research, 5, pp. 299-318. [11] Lubliner, J. (2006). Plasticity theory (Revised edition), University of California, Berkeley, CA. [12] Chakrabarty, J. (2006). Theory of plasticity, Elsevier Butterworth-Heinemann, Oxford. [13] Lukash, P.A. (1998). Fundamentals of non-linear structural mechanics, Stroizdat. [14] Varvak, P.M. (1997). New methods in strength of materials, Vishta shkola. [15] Rizov, V.I. (2017). Analysis of longitudinal cracked two-dimensional functionally graded beams exhibiting material non-linearity, Frattura ed Integrità Strutturale, 41, pp. 498-510.