نتایج جستجو برای: spectral finite element model

تعداد نتایج: 2526810  

The stored deformation energy in the dislocation structures in a polycrystalline metal can provide a sufficient  driving force to move grain boundaries during annealing. In this paper, a thermodynamically-consistent three-dimensional, finite-strain and dislocation density-based crystal viscoplasticity constitutive theory has been developed to describe the distribution of stored energy and dislo...

Journal: :journal of solid mechanics 0
m motamedi faculty of engineering, university of shahreza, p. o. box 86149-56841, isfahan, iran m mosavi mashhadi department of mechanical engineering, university of tehran, p.o. box 11365-4563, tehran, , iran

this work is conducted to obtain mechanical properties of microtubule. for this aim, interaction energy in alpha-beta, beta-alpha, alpha-alpha, and beta-beta dimers was calculated using the molecular dynamic simulation. force-distance diagrams for these dimers were obtained using the relation between potential energy and force. afterwards, instead of each tubulin, one sphere with 55 kda weight ...

Journal: :Archives of Computational Methods in Engineering 2023

Abstract The Spectral Finite Element Technique (SFEM) has Several Applications in the Sciences, Engineering, and Mathematics, which will be Covered this Review Article. Method is a Variant of Traditional FEM that Makes use Higher Order Basis Functions (FEM). One most Fundamental Numerical Techniques Employed Simulation SFEM, Outperforms Other Terms Faster Convergence, Reduced Diffusion Dispersi...

Alitavoli , M., Ansari Khalkhali, R., Darvizeh, A., Sedaghat, A.,

In this study, first by using the finite element method, fatigue life of fiber metal laminates of Glare type subjected to impact was obtained and the numerical results of the model were compared with the experimental results. With regard to the very good matching between numerical and experimental results, then the results of the finite element model were generalized and expanded, and with usin...

Journal: :SIAM J. Numerical Analysis 2009
Qiang Du Desheng Wang Liyong Zhu

The performance of finite element computation depends strongly on the quality of the geometric mesh and the efficiency of the numerical solution of the linear systems resulting from the discretization of partial differential equation (PDE) models. It is common knowledge that mesh geometry affects not only the approximation error of the finite element solution but also the spectral properties of...

J.N Reddy, W Kim

In this paper, a comparison of weak-form Galerkin and least-squares finite element models of Timoshenko beam theory with the von Kármán strains is presented. Computational characteristics of the two models and the influence of the polynomial orders used on the relative accuracies of the two models are discussed. The degree of approximation functions used varied from linear to the 5th order. In ...

Journal: :SIAM/ASA Journal on Uncertainty Quantification 2016

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