Nonlinear Transient Thermal Stress Analysis of a Thick Hollow FGM Cylinder with Finite Length
- سال انتشار: 1397
- محل انتشار: بیست و ششمین همایش سالانه بین المللی انجمن مهندسان مکانیک ایران
- کد COI اختصاصی: ISME26_646
- زبان مقاله: انگلیسی
- تعداد مشاهده: 413
نویسندگان
Semnan University
Semnan University
Semnan University
چکیده
In order to realizing the behavior of functionally graded materials (FGMs) in high temperature conditions, a trustworthy and efficient numerical tool is needed for forecasting heat transfer behavior and thermal stresses in them. In this paper nonlinear transient thermomechanical analysis of a thick hollow 1D-FGM cylinder with finite length is investigated utilizing graded finite element method with higher order elements. The material properties are assumed to be distributed along the radial direction and the power law volume fraction and simple rule of mixture scheme are utilized to implement the effective material properties. The temperature dependency of material properties leads to nonlinear thermal conduction equation. The temperature, displacements and stresses for different values of volume fraction exponents, along radial direction and time are investigated. It is demonstrated that the stresses and temperature are lower than thợ ceramic rich cylinder wall. In other words, functionally graded cylinder wall gives better results in both stress and temperature cases than non-FGM cylinder.کلیدواژه ها
1D-FGM, Thick Hollow Cylinder, Thermal Stresses, Nonlinear Temperature Dependencyمقالات مرتبط جدید
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