Mathematical modeling of the contact interaction of the fuel element with creep using the mortar-method | Zendy

Pavel Sergeevich Aronov | Zendy; M P Galanin | Zendy; Александр Сергеевич Родин | Zendy

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Mathematical modeling of the contact interaction of the fuel element with creep using the mortar-method

Author(s) -

Pavel Sergeevich Aronov,

M P Galanin,

Александр Сергеевич Родин

Publication year - 2020

Publication title -

keldysh institute preprints

Language(s) - English

Resource type - Journals

eISSN - 2071-2901

pISSN - 2071-2898

DOI - 10.20948/prepr-2020-110

Subject(s) - creep , mortar , rotational symmetry , finite element method , pellets , relaxation (psychology) , materials science , mechanics , structural engineering , engineering , composite material , physics , psychology , social psychology

An algorithm for solving axisymmetric contact problems of the theory of thermoelasticity with creep processes is considered. To take into account the contact interaction of bodies, the mortar method was used, a modified method of over relaxation was used to solve the obtained system of linear equations. For the test task, the resulting numerical solution is compared to the analytical solution. The results of application of the proposed algorithm for the demonstration problem simulating thermomechanical processes in the fuel element section including from 2 to 10 fuel pellets are presented..

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