Elastoplastic Analysis of Functionally Graded Spherical Pressure Vessels

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Date

2009

Authors

Akış, Tolga

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Publisher

Elsevier Science Bv

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Civil Engineering
(2000)
The Atılım University Department of Civil Engineering was founded in 2000 as a pioneer for the Departments of Civil Engineering among the foundation schools of Ankara. It offers education in English. The Department of Civil Engineering has an academic staff qualified in all areas of the education offered. In addition to a high level of academic learning that benefits from learning opportunities through practice at its seven laboratories, the Department also offers a Cooperative Education program conducted in cooperation with renowned organizations in the construction sector. Accredited by MÜDEK (Association of Evaluation and Accreditation of Engineering Programs) (in 2018), our Department has been granted the longest period of accreditation to ever achieve through the association (six years). The accreditation is recognized by ENAEE (European Network for Accreditation of Engineering Education), and other international accreditation boards.

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Abstract

Purely elastic, partially plastic and fully plastic stress states of internally pressurized functionally graded spherical pressure vessels are investigated analytically in the framework of small deformation theory. The modulus of elasticity and the uniaxial yield limit of the spherical pressure vessel material are assumed to vary nonlinearly in the radial direction. The plastic model is based on Tresca's yield criterion and ideal plastic material behavior. It is shown that, unlike in the case of a homogeneous spherical pressure vessel, different modes of plasticization may take place due to the radial variation of the functionally grading parameters. (C) 2009 Elsevier B.V. All rights reserved.

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Akis, Tolga/0000-0002-6754-4497
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Keywords

Functionally graded material, Elastoplasticity, Stress analysis, Spherical pressure vessel, Tresca's criterion

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Citation

42

WoS Q

Q3

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Source

Volume

46

Issue

2

Start Page

545

End Page

554

URI

https://doi.org/10.1016/j.commatsci.2009.04.017
 https://hdl.handle.net/20.500.14411/1494

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