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A secure version of asymptotic numerical method via convergence acceleration

Abstract : The paper deals with the numerical computation of difficult problems requiring many steps and many degrees of freedom such as the finite element analysis of wrinkling of film–substrate systems. The asymptotic numerical method (ANM) is well adapted to such computations but with a progressive loss of accuracy during step chaining. Thus, correction phases are necessary, which are rarely carried out within ANM. A convergence acceleration algorithm and a step-length adaptation have been included to limit the growth of computation time and to strengthen the reliability of the procedure. This modified version of the ANM is assessed by simulating the appearance and evolution of sinusoidal wrinkles under uniaxial compression.
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Submitted on : Friday, January 22, 2021 - 9:33:46 AM
Last modification on : Friday, August 5, 2022 - 2:54:00 PM
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Pascal Ventura, Michel Potier-Ferry, Hamid Zahrouni. A secure version of asymptotic numerical method via convergence acceleration. Comptes Rendus. Mécanique, 2020, 348 (5), pp.361-374. ⟨10.5802/crmeca.48⟩. ⟨hal-03118282⟩



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