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Journal of Computational and Applied Research in Mechanical Engineering - JCARME، جلد ۴، شماره ۲، صفحات ۱۶۵-۱۸۰

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عنوان انگلیسی Elastoplastic torsion of hollow FGM circular shaft
چکیده انگلیسی مقاله In many cases, a torsional shaft may be a thick-walled radially inhomogeneous cylindrical object. The hollow shafts made of functionally graded materials (FGMs) are such kind of compositions which were studied in this paper. Cylindrical FG shafts are composed of ceramic and metallic parts with power function distribution across the radial direction. The ceramic phase is isotropic elastic and the metallic phase was elastic-plastic. In this paper, the volume fraction-based elastic–plastic mixture rule of renowned Tamura–Tomota–Ozawa (TTO) was used to model the behavior of the composite material. The elasto-plastic torsion problem was modeled and solved analytically. The results were compared with the simulations of ABAQUS and the accuracy of the solutions was evaluated. Depending on the thickness and level of inhomogeneity, different modes of yielding were obtained. The results showed that plastic zone could occur at the inner or outer surfaces or simultaneously at both surfaces; even it may start in-between the thickness. Moreover, the influence of material inhomogeneity and thickness of shaft upon the plastic zone development were studied and discussed.
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نویسندگان مقاله y بیات |
faculty of engineering, ferdowsi university of mashhad, mashhad 9177948944-11, i. r. iran
سازمان اصلی تایید شده: دانشگاه فردوسی (Ferdowsi university)

h اختراعی طوسی | ekhteraei toussi
faculty of engineering, ferdowsi university of mashhad, mashhad 9177948944-11, i. r. iran
سازمان اصلی تایید شده: دانشگاه فردوسی (Ferdowsi university)


نشانی اینترنتی http://jcarme.srttu.edu/article_274_d30fb7b0112fd99d65f4caf436a0940e.pdf
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