Mesh smoothing is an essential technique for the improvement of mesh quality in finite element analysis,due to the fact that mesh quality has a large impact on the convergence of the computational scheme and the accur...Mesh smoothing is an essential technique for the improvement of mesh quality in finite element analysis,due to the fact that mesh quality has a large impact on the convergence of the computational scheme and the accuracy of the numerical results.A novel mesh smoothing method based on regular-position-guided operations is presented in this paper.The method introduced here contains two main stages:The first stage computes the regular position of each vertex based on the shape of the element and conducts regular-position-oriented-based element transformations independently;the second stage determines the finial position of each vertex according to its surrounding elements with an assembly strategy.This method is not limited to planar triangular mesh,but applicable to surface polygonal mesh.Numerical experiments on various mesh models demonstrate the effectiveness and potential of this method.展开更多
The mesh transformation method is applied on a two-dimensional elastic crystal model to study the formation of laminated microstructure inaustenite-martensite phase transition when certain external loads areapplied. N...The mesh transformation method is applied on a two-dimensional elastic crystal model to study the formation of laminated microstructure inaustenite-martensite phase transition when certain external loads areapplied. Numerical experiments show that simple laminated microstructureswith various volume fractions and twin width can be obtained by varyingthe loads. Numerical experiments also show that second order laminatedmicrostructure with branched needle-like laminates can also be obtained bycertain loads.展开更多
文摘Mesh smoothing is an essential technique for the improvement of mesh quality in finite element analysis,due to the fact that mesh quality has a large impact on the convergence of the computational scheme and the accuracy of the numerical results.A novel mesh smoothing method based on regular-position-guided operations is presented in this paper.The method introduced here contains two main stages:The first stage computes the regular position of each vertex based on the shape of the element and conducts regular-position-oriented-based element transformations independently;the second stage determines the finial position of each vertex according to its surrounding elements with an assembly strategy.This method is not limited to planar triangular mesh,but applicable to surface polygonal mesh.Numerical experiments on various mesh models demonstrate the effectiveness and potential of this method.
文摘The mesh transformation method is applied on a two-dimensional elastic crystal model to study the formation of laminated microstructure inaustenite-martensite phase transition when certain external loads areapplied. Numerical experiments show that simple laminated microstructureswith various volume fractions and twin width can be obtained by varyingthe loads. Numerical experiments also show that second order laminatedmicrostructure with branched needle-like laminates can also be obtained bycertain loads.
