Home Articles List Article Information
JES. Journal of Engineering Sciences
Journal Archive
Volume Volume 52 (2024)
Volume Volume 51 (2023)
Volume Volume 50 (2022)
Volume Volume 49 (2021)
Volume Volume 48 (2020)
Volume Volume 47 (2019)
Volume Volume 46 (2018)
Volume Volume 45 (2017)
Volume Volume 44 (2016)
Volume Volume 43 (2015)
Volume Volume 42 (2014)
Volume Volume 41 (2013)
Volume Volume 40 (2012)
Volume Volume 39 (2011)
Volume Volume 38 (2010)
Volume Volume 37 (2009)
Volume Volume 36 (2008)
Volume Volume 35 (2007)
Volume Volume 34 (2006)
Nemat-Alla, M. (2008). COMPOSITION OPTIMIZATION OF TWO DIMENSIONAL FUNCTIONALLY GRADED MATERIALS UNDER THERMAL LOADING. JES. Journal of Engineering Sciences, 36(No 6), 1461-1482. doi: 10.21608/jesaun.2008.119784
Mahmoud Nemat-Alla. "COMPOSITION OPTIMIZATION OF TWO DIMENSIONAL FUNCTIONALLY GRADED MATERIALS UNDER THERMAL LOADING". JES. Journal of Engineering Sciences, 36, No 6, 2008, 1461-1482. doi: 10.21608/jesaun.2008.119784
Nemat-Alla, M. (2008). 'COMPOSITION OPTIMIZATION OF TWO DIMENSIONAL FUNCTIONALLY GRADED MATERIALS UNDER THERMAL LOADING', JES. Journal of Engineering Sciences, 36(No 6), pp. 1461-1482. doi: 10.21608/jesaun.2008.119784
Nemat-Alla, M. COMPOSITION OPTIMIZATION OF TWO DIMENSIONAL FUNCTIONALLY GRADED MATERIALS UNDER THERMAL LOADING. JES. Journal of Engineering Sciences, 2008; 36(No 6): 1461-1482. doi: 10.21608/jesaun.2008.119784

COMPOSITION OPTIMIZATION OF TWO DIMENSIONAL FUNCTIONALLY GRADED MATERIALS UNDER THERMAL LOADING

Article 29, Volume 36, No 6, November and December 2008, Page 1461-1482  XML PDF (1.06 MB)
Document Type: Research Paper
DOI: 10.21608/jesaun.2008.119784
View on SCiNiTO View on SCiNiTO
Author
Mahmoud Nemat-Alla
Mechanical Engineering Department, Faculty of Engineering, Assiut University, Assiut71516, Egypt
Abstract
Reduction of the thermal stresses in machine elements that are subjected to severe thermal loadings was achieved by developing two-dimensional functionally graded material, 2D-FGM. In the current investigation composition optimization for ZrO2/6061-T6/Ti-6Al-4V 2D-FGM, under severe thermal loading cycle that consists of heating followed by cooling, was carried out based on the minimization of temperatures, thermal and residual stresses to achieve more reduction of the thermal stresses. It was found that optimum composition based on minimum value of the maximum temperature for ZrO2/6061-T6/Ti-6Al-4V 2D-FGM was achieved for mx = 0.1 and my = 0.1. While optimum composition based on minimum value of the maximum normalized equivalent stresses for ZrO2/6061-T6/Ti-6Al-4V 2D-FGM was achieved for mx = 0.1 and my = 5, where mx and my are the composition variation parameters in x and y directions respectively. Also, the obtained optimum composition of ZrO2/6061-T6/Ti-6Al-4V 2D-FGM can stands well with the adopted severe thermal loading without any plastic deformation or residual stresses where the maximum value of the normalized equivalent stresses during heating stage was 0.8 and the maximum value of the normalized equivalent stresses during cooling stage was 0.24.
Keywords
Composition optimization; 2D-FGM; Nonhomogeneous parameters; Elastic-plastic material model; Temperature dependent material properties; Thermal stresses; Finite element analysis
Main Subjects
Mechanical, Power, Production, Design and Mechatronics Engineering.
Statistics
Article View: 98
PDF Download: 331