Finite Element Analysis of Dynamic Behavior of Viscoelastic Materials Using FFT

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概要

• 論文の詳細を見る

• A new kind of finite element method is presented for analyzing dynamic behavior of viscoelastic materials. In this method, the finite element formulation can be accomplished in a simple form based on the correspondence principle between elasticity and viscoelasticity. Namely, the finite element equations for a viscoelastic problem are found by applying the Laplace transform to those for the corresponding elastic problem and then replacing elastic constants by viscoelastic functions. Laplace transforms of the nodal displacements can be obtained by solving the matrix equation represented in the Laplace domain (complex s domain). Laplace inverse transformation is subsequently performed with the FFT (fast Fourier transform) algorithm to obtain solutions in the time domain. The present method is successfully applied to analyze some typical problems, and the numerical results show the adequacy of the method.

• 一般社団法人日本機械学会の論文
• 1996-01-15

著者

• Nakano M

  Osaka Univ. Toyonaka

• Nakano M

  Faculty Of Engineering Osaka University

• Sogabe Yuji

  Faculty Of Engineering Ehime University

• NAKANO Motohiro

  Faculty of Engineering, Osaka University

• KISHIDA Keizo

  Faculty of Engineering, Osaka University

• TSUZUKI Masayuki

  Professor Emeritus, Ehime University

• Tsuzuki Masayuki

  Professor Emeritus Ehime University

• Kishida Keizo

  Faculty Of Engineering Osaka University

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