Elasto-Plastic Analysis of Cylindrical Vessel with Arbitrary Material Gradation Subjected to Thermo-Mechanical Loading Via DTM

Heydari, Abbas

doi:10.1007/s13369-019-03910-x

Cited by 6 publications

(2 citation statements)

References 22 publications

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“…A coupled mechanical and energy equations are solved using numerical methods. It is noticed that thermal effects have a crucial role in contact behavior [41][42][43]. Instead of using a perfect concept of contact, authors have used the correlation of Thermal Contact Conductance (TCC) [42] to model the structural-thermal contact.…”

Section: Introductionmentioning

confidence: 99%

Thermo elasto-plastic contact analyzis for high temperature applications

et al. 2022

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This study presents the development of a thermo-mechanical simulation model for an elastic-plastic contact problem between a half cylinder and a plane plate. The set of equations was solved using direct coupling method by Ansys mechanical. The results obtained from the present numerical model of the structural contact without heat transfer are compared with those of analytical, experimental and other numerical models. Then, the contact problem was solved using a coupled thermo-mechanical model. Computational results showed significant effects of thermal consideration in the elastic-plastic contact problem. Large deformations of structure due to high temperature are predicted using the thermo-mechanical model with elastic-plastic deformations. This model is useful to predict deformations on the structural components due to contact at high temperature situation.

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Section: Introductionmentioning

confidence: 99%

Thermo elasto-plastic contact analyzis for high temperature applications

et al. 2022

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“…29 The novel mathematical methods are used to analyze structures made up of FG materials. 30 Steady state response of FG nanobeams resting on viscous foundation to superharmonic excitation is studied. 31 The frequency response of functionally graded carbon nanotube reinforced magneto-electro-elastic (FG-CNTMEE) plates subjected to open and closed electro-magnetic circuit conditions are obtained.…”

Section: Introductionmentioning

confidence: 99%

Dependency of critical damping on various parameters of tapered bidirectional graded circular plates rested on Hetenyi medium

Heydari

2020

Proceedings of the Institution of Mechanical Engineers, Part C:

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In industrial machinery and automobiles the critical damping plates are used as shock absorbers to dampen system and return rest position, in the shortest period of time. The paper is focused on the effects of various parameters on critical damping of a complicated system including a tapered bidirectional graded circular plate subjected to radially variable in-plane pre-load and rested on visco-Hetenyi elastic medium with semi-rigid restraint. By employing a Chebyshev-Ritz method, dependency of critical damping is investigated for the first time on various parameters including bidirectional arbitrary material gradation, variable in-plane pre-load, Hetenyi elastic medium parameters, tapering, semi-rigid restraint and Poisson’s ratio. For the Chebyshev-Ritz method developed here, the proper scale factor and orthogonal shifted Chebyshev polynomials of the first kind without auxiliary function requirement are used. The conventional rule of mixture and Mori-Tanaka homogenization scheme are used to model transverse gradation. The characteristic equation is calculated by vanishing determinant of the total potential energy Hessian. An equivalent ABAQUS model is introduced to eliminate necessity of complicated modeling of original structure.

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