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#1Ruoxuan LiuH-Index: 1
#2Sean McGintyH-Index: 10
Last.Zishun LiuH-Index: 30
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Purpose – The purpose of this paper is to demonstrate the feasibility of using SMP for developing vascular stent. In particular the expansion performance is analyzed through extensive modeling and simulation. Design/methodology/approach –Firstly, we construct the model geometry and propose a constitutive model to describe the deformation of the stent due to the expansion process. We then simulate the expansion process under varying conditions, including different heating rates and recovery tempe...
#1Xikui LiH-Index: 20
#2Songge ZhangH-Index: 1
Last.Qinglin DuanH-Index: 13
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This paper aims to present a novel scheme for imposing periodic boundary conditions with downscaled macroscopic strain measures of gradient Cosserat continuum on the representative volume element (RVE) of discrete particle assembly in the frame of the second-order computational homogenization methods for granular materials.,The proposed scheme is based on the generalized Hill’s lemma of gradient Cosserat continuum and the incremental non-linear constitutive relation condensed to the peripheral p...
Purpose This study aims to introduce the hybrid finite element (FE) – meshfree method and multiscale variational principle into the traditional mixed FE formulation, leading to a stable mixed formulation for incompressible linear elasticity which circumvents the need to satisfy inf-sup condition. Design/methodology/approach Using the hybrid FE–meshfree method, the displacement and pressure are interpolated conveniently with the same order so that a continuous pressure field can be obtained with ...
#1Qinglei ZengH-Index: 7
#2Zhanli LiuH-Index: 16
Last.Zhuo ZhuangH-Index: 18
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Purpose The purpose of this paper is to develop a numerical method to model the simultaneous propagation of multiple hydraulic fractures (HFs) with fluid lags driven from a horizontal wellbore. Design/methodology/approach Fracture propagation in solid medium is modeled with the extended finite element method and fluid flow is modeled with finite volume method. Three iteration loops are introduced to solve the nonlinear system within each time increment, i.e. a Newtonian iteration to solve the so...
#1Shutian LiuH-Index: 35
#2Xueshan DingH-Index: 1
Last.Zeqi TongH-Index: 3
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Purpose This paper aims to study the energy absorption properties of the thin-walled square tube with lateral piecewise variable thickness under axial crashing and the influence of the tube parameters on energy absorption. Design/methodology/approach In this work, the energy absorption properties of the thin-walled square tube were analyzed by theoretical, numerical and experimental approach. The numerical results are obtained based on the finite element method. The explicit formulation for pred...
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