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Consistent Linearization Method for Finite-Element Analysis of Viscoelastic Materials

机译：粘弹性材料有限元分析的一致线性化方法

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A method of formulating material models for viscoelastic analysis using the finite-element method is presented. The method, named consistent linearization, includes the influence of creep in the material stiffness in a theoretically ideal manner. This method has been applied to the linear viscoelastic analysis of graphite subject to irradiation. Previously, using the initial strain method, short time steps had been required to avoid a numerical instability associated with the rapid transient creep. Using the consistent linearization method a factor of 15 reduction in computer time was achieved for the same accuracy. (ERA citation 08:042846)

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