Paper Title:

Thermal Stresses in Thick Walled Cylinders due to a Periodic Moving Heat Source: Effect of Material Properties

Periodical Advanced Materials Research (Volume 445)
Main Theme Materials and Manufacturing Technologies XIV
Edited by Faruk Yigit and Mohammed S. J. Hashmi
Pages 627-630
DOI 10.4028/www.scientific.net/AMR.445.627
Citation Iyad T. Alzaharnah, 2012, Advanced Materials Research, 445, 627
Online since January, 2012
Authors Iyad T. Alzaharnah
Keywords Cylinder, Material Property, Moving Heat Source, Periodic Heating, Thermal Stress
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Abstract

nternal heating of hollow cylinders with moving periodic heat source is examined in relation to surface treatment applications. This study includes three different cylinder materials, namely aluminum, nickel and titanium. Effective stresses in the cylinder wall are found to be mainly attributed to longitudinal temperature gradients. The aluminum cylinder shows sharper longitudinal temperature gradients as compared to the nickel and the titanium cylinders, which is due to the high value of the aluminum specific heat capacity. However, the larger Eα (elasticity modulus × thermal expansion coefficient) values for nickel cylinder result in higher levels of stress although nickel and titanium cylinders exhibit similar longitudinal temperature profiles. During dwelling time for the heating source at a certain spot, titanium cylinder exhibits lower levels of temperature increase as compared to aluminum and nickel cylinders, due to its lower value of thermal conductivity.