Abstract: The purpose of this study was to investigate the effect of Poisson’s ratio on the flexural wave propagation in stepbeam. The transmission and reflection matrices, based on Timoshenko theory, were derived for the junction of two beams. The results show that the negative Poisson’s ratio has a signifi...
Abstract: The stress fields of the steady propagation notch tip in creep damage materials under tensile loading and antiplane shear loading were investigated. The stress potential function and the displacement potential function were adopted. The governing equations of the steady propagation notch tip were ob...
Abstract: An improved process of iterative algorithm was added to the precise integration method for ill-conditioned algebraic equations and an improved precise integration method for ill-conditioned algebraic equations was therefore constructed. The method further improves the accuracy and efficiency of the ...
Abstract: In view of a parallel algorithm of preconditioned modified conjugate gradient method for solving a kind of matrix equationAXB=C，a preconditioned model was proposed. Based on this thought, firstly the preconditioned matrix was constructed, which was strictly diagonally dominant matrix, secondly the ...
Abstract: Whether a model can be identified is a basic characteristic of the model before studying parameter estimation. Until recently, the classical susceptibleinfectiousrecovered (SIR) model is still one of the most commonly used models. In present work the algebraic identifiability of the SIR model by u...
Abstract: The regularized meshless method (RMM) is a new meshless boundary collocation method. This method overcame the perplexing fictitious boundary associated in the method of fundamental solutions (MFS), while inherited all its merits being truly meshless, integration-free, and easy toprogram. Like the M...
Abstract: Combining HellingerReissner variational principle and the way of constructing displacement interpolation function of generalized finite element method to construct stress field and displacement field independently, through the suitable stress field could get a more precise stress value of node conv...
Abstract: In deep drawing (or the swift cupping test) of sheet metals, a circular blank of radius Rb is placed symmetrically under a blankholder over a die with a circular aperture of radius rab. A flatheaded punch of circular crosssection is forced down onto the blank, which is allowed to slip under the b...
Abstract: Modulation feedback method was used to predict the forced response of a linear system that was governed by an ordinary differential equation with periodic coefficients. The system was excited by both periodic coefficients and external force terms that had different periods. In the method, the forced...
Abstract: The centrosymmetric solutions of constrained matrix equation under a central principal submatrix constraint were studied.By using matrix to quantify, Kronecker product and singular value decomposition (SVD) method, the necessary and sufficient conditions for solvability and the general expression of...
Abstract: To provide a mathematical description of the chaotic behavior in Kolmogorov flow model,with k=3was researched,NavierStokes equation was truncated by seven basic modes and a new sevendimensional chaotic system described by ordinary differential equations was obtained. The basic dynamical behaviors...
