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Steady-State Creep Deformations and Stresses in FGM Rotating Thick Cylindrical Pressure Vessels

  • M. Z. Nejad (a1), Z. Hoseini (a1), A. Niknejad (a1) and M. Ghannad (a2)

Abstract

In the present study, a closed-form analytical solution for the steady-state creep stresses of rotating thick cylindrical pressure vessels made of functionally graded materials (FGMs) is carried out. Norton's law governs the creep response of the material. Exact solutions for stresses and strain rate are obtained under the plane strain condition. How different material parameters involved in Norton's law affect radial and circumferential stresses together with the equivalent strain rate in rotating thick-walled cylindrical vessels under internal pressure is investigated. The result obtained shows that the property of FGMs has a significant influence on the equivalent creep strain rate and stresses distributions along the radial direction.

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* Corresponding author (m.zamani.n@gmail.com; m_zamani@yu.ac.ir

References

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Keywords

Steady-State Creep Deformations and Stresses in FGM Rotating Thick Cylindrical Pressure Vessels

  • M. Z. Nejad (a1), Z. Hoseini (a1), A. Niknejad (a1) and M. Ghannad (a2)

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