Steady-State Creep Deformations and Stresses in FGM Rotating Thick Cylindrical Pressure Vessels. (21st October 2014)

• Record Type: Journal Article
• Authors: Nejad, M. Z.; Hoseini, Z.; Niknejad, A.; Ghannad, M.
• Is Part Of: Journal of mechanics. Volume 31:Number 1(2015)
• Page Start: 1
• Page End: 6
• Publication Date: 2014-10-21
• Subjects: Mechanics, Analytic -- Periodicals; Mechanics -- Periodicals; 620.1005
• DOI: 10.1017/jmech.2014.70
• Languages: English
• ISSNs: 1727-7191

Abstract

<abstract abstract-type="normal"> <title>Abstract</title> <p>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.</p> </abstract>