Thermo-mechanical behavior of cylindrical pressure vessels made of functionally graded austenitic/ferritic steels

Talebizad, A.; Isavand, Samaneh; Bodaghi, Mahdi; Shakeri, M.; Mohandesi, Jamshid Aghazadeh

doi:10.1016/j.ijmecsci.2013.09.027

Cited by 7 publications

(2 citation statements)

References 15 publications

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“…With the introduction of FGSs, it is important to get a comprehensive realization of the behavior of FGS structures for reliable design of these strength gradient structures. Recently, Talebizad et al (2013) presentedan axisymmetric thermo-mechanical analysis of FGS cylindrical pressure vessels under static internal pressure with arrangements of γMγ and αβγ. Governing equations of equilibrium were derived based on the 2-D elasticity theory and solved using finite element methods.…”

Section: Introductionmentioning

confidence: 99%

“…Reviewing the literature on the analysis of FGS structures reveals that there exists only one research paper (Talebizad et al 2013) which has been published on the static analysis of axisymmetric FGS cylindrical pressure vessels under internal pressure. To the best of authors' knowledge, there is no research work on the dynamic analysis of FGS structures in the open literature.…”

Section: Introductionmentioning

confidence: 99%

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Dynamic response of functionally gradient austenitic-ferritic steel composite panels under thermo-mechanical loadings

Isavand¹,

Bodaghi²,

Shakeri³

et al. 2015

Steel Compos. Struct.

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In this paper, the dynamic response of functionally gradient steel (FGS) composite cylindrical panels in steady-state thermal environments subjected to impulsive loads is investigated for the first time. FGSs composed of graded ferritic and austenitic regions together with bainite and martensite intermediate layers are analyzed. Thermo-mechanical material properties of FGS composites are predicted according to the microhardness profile of FGS composites and approximated with appropriate functions. Based on the three-dimensional theory of thermo-elasticity, the governing equations of motionare derived in spatial and time domains. These equations are solved using the hybrid Fourier series expansion-Galerkin finite element method-Newmark approach for simply supported boundary conditions. The present solution is then applied to the thermo-elastic dynamic analysis of cylindrical panels with three different arrangements of material compositions of FGSs including αβγMγ, αβγβα and γβαβγ composites. Benchmark results on the displacement and stress time-histories of FGS cylindrical panels in thermal environments under various pulse loads are presented and discussed in detail. Due to the absence of similar results in the specialized literature, this paper is likely to fill a gap in the state of the art of this problem, and provide pertinent results that are instrumental in the design of FGS structures under time-dependent mechanical loadings.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Dynamic response of functionally gradient austenitic-ferritic steel composite panels under thermo-mechanical loadings

Isavand¹,

Bodaghi²,

Shakeri³

et al. 2015

Steel Compos. Struct.

Self Cite

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Thermal Stress Analysis for Functionally Graded Plates with Modulus Gradation, Part II

Baytak,

Tosun,

Ipek

et al. 2024

Exp Mech

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Background The gradation of thermal expansion coefficient was analyzed in the earlier study. The analytical formulation derived here, which is quite different, should be validated to understand the thermal stress distribution in a laminated composite and functionally graded material. Besides this solution, a validated numerical model can also be used to optimize the material gradation of plates in terms of sustainability. Objective To validate the analytical formulation derived here, an experimental model is presented to understand the thermal stress concentration for functionally graded and laminated composite plates. A numerical model is also validated to extend to understand the effects of the number of layers, the thickness of a layer, the gradation function, the ratio of elastic moduli, and the coating. Methods The experimental problems in the production of the experimental models with layers of different elastic moduli are discussed here. In the experimental analysis, a three-dimensional photoelastic stress analysis of two- and four-layer composite plate was used to mechanically model the thermal expansion. The analytical solution for the thermal stress in a free plate was derived by the strain suppression method based on the principle of superposition. The numerical models were analyzed using finite element software. The step variation in the experiment was used as a reference point for a continuous or multi-layer (> 2) step variation of material coefficients in the models. Results The variation of stress concentration is shown for various cases of laminated and continuous gradations of elastic modulus. The four-layer experimental model provides the difference in thermal stress distribution as a result of a layered coating. The validated analytical and numerical models provide reasonable results. An empirical formula to optimize the material gradation in terms of elastic modulus is derived. Conclusions The experimental model can be used to analyze thermal stress in functionally graded materials. The gradations of the material in the plate or the coating of the plates can be optimized by the validated analytical and numerical models. The empirical formula can be used to determine the elastic modulus of the coating to minimize the stress concentration.

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Sensitivity Analysis of Random Frequency Responses of Hybrid Multi-functionally Graded Sandwich Shells

Vaishali

Kushari

Kumar

et al. 2022

J. Vib. Eng. Technol.

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Thermo-mechanical behavior of cylindrical pressure vessels made of functionally graded austenitic/ferritic steels

Cited by 7 publications

References 15 publications

Dynamic response of functionally gradient austenitic-ferritic steel composite panels under thermo-mechanical loadings

Dynamic response of functionally gradient austenitic-ferritic steel composite panels under thermo-mechanical loadings

Thermal Stress Analysis for Functionally Graded Plates with Modulus Gradation, Part II

Sensitivity Analysis of Random Frequency Responses of Hybrid Multi-functionally Graded Sandwich Shells

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