Improved xfem

Author: jinl

August undefined, 2024

Witryna1 lut 2024 · Improved XFEM (IXFEM): 3D dynamic crack propagation under impact … Witryna2 mar 2016 · The extended finite element method (XFEM) is improved to directly …

ReP USP - Detalhe do registro: Recovery strategies, a posteriori …

Witryna1 sty 2024 · Three-dimensional improved XFEM (IXFEM) for static crack problems 1. … Witryna28 lip 2015 · In this paper, a modified intrinsic extended finite element method (XFEM) … philmonger

Improved XFEM (IXFEM): 3D dynamic crack propagation under …

WitrynaImproved XFEM: algorithms, software and applications Rong Tian, Longfei Wen … WitrynaAn Improved XFEM With Multiple High-Order Enrichment Functions and Low-Order … Witryna30 wrz 2024 · Jena et al. accurately captured the singularity at the crack tip during semipermeable crack propagation using XFEM. Xiao et al. proposed a B-spline ruled surface algorithm, which was applied to modeling arbitrary 3D crack propagation in the context of the improved XFEM. It had been proved to possess both efficiency and … philmon gebrewhit

动载下裂纹应力强度因子计算的改进型扩展有限元法

WitrynaThe improved XFEM magnetic vector potential approximation can be expressed by . N NNu x x u x x x a h i i j k k j k i I k jJ ek \M ¦ ¦ ¦ (1 ) where u i and a j are nodal unknowns, N i (x) and N j (x) the finite element shape functions, ψ(x) is the enrichment function, which contains the desirable discontinuous properties, and Je WitrynaUSP Schools Escola de Artes, Ciências e Humanidades (EACH) Escola de Comunicações e Artes (ECA) Escola de Enfermagem (EE) Escola de Enfermagem de Ribeirão Preto (EERP) Escola de Educação Física e Esporte (EEFE) Escola de Educação Física e Esporte de Ribeirão Preto (EEFERP) Escola de Engenharia de … tsd sharepointWitryna本文采用xfem对不同断面形式的隧洞衬砌进行计算分析,模拟衬砌裂缝的萌生及扩展过程,得到一些裂缝扩展的规律,展示出xfem研究开裂问题的可行性及其独特的优越性。 1 不同断面形状的衬砌结构分析. 1.1 工程概况 tsd sheffield

"Witryna8 kwi 2024 · 而因子;②以 XFEM 仿真结果为训练数据,以裂纹起大多数结构的裂纹尖端应力场分布较为复杂,应力始位置和长度为输入,构建以应力强度因子为输出强度因子受裂纹尺寸和起始位置的影响较大,应力的反向传播人工神经网络( back propagation artificial 强度因子的解析 ... " - Improved xfem

Improved xfem

Mathematics Free Full-Text An Extended Finite Element Method (XFEM …

Witryna1 mar 2015 · An improved XFEM (i XFEM) is developed to overcome those difficulties … Witryna30 sty 2024 · 相较于常规扩展有限元法 (extended finite element method, XFEM), 改进型扩展有限元法 (improved XFEM) 解决了现有方法线性相关与总体刚度矩阵高度病态问题, 在数量级上提升了总体方程的求解效率, 克服了现有方法在动力学问题中的能量正确传递、动态应力强度因子数值震荡、精度低下问题. 本文基于改进型XFEM, 采用Newmark 隐 …

Did you know?

Witryna15 kwi 2024 · The technique is applied to modeling arbitrary 3D crack propagation in … Witryna25 maj 2024 · In this paper, the improved extended finite element method (XFEM) for analyzing the three-dimensional (3D) electric field is presented. The interface between two media is described by using a four-dimensional (4D) level set function. For elements with multiple interfaces, the local level set method is used to improve the accuracy. By …

Witryna27 lis 2024 · As a continuously improved numerical method, the meshless method still demands refining. The integral domain, support domain, weight function and even layout of field nodes will affect the results. The nonlinear correlation makes it difficult to obtain sufficiently accurate results using the LRPIM. ... 2015 Improved XFEM—an extra-dof … Witryna15 lut 2024 · An improved XFEM (IXFEM) for three-dimensional non-planar crack …

Witryna3 wrz 2024 · The modified XFEM, a specific form of the stable generalised finite … WitrynaThis paper proposes an improved extended finite element method for modeling electromagnetic devices with multiple nearby geometrical interfaces. In regions near these interfaces, the magnetic vector potential approximation is enriched by incorporating multiple derivative discontinuous fields based on the partition of unity method such …

Witryna1 paź 2015 · An improved stable XFEM (Is-XFEM) with a novel enrichment function …

Witryna15 sie 2016 · Based on an extra-dof-free partition of unity enrichment technique (Tian, … tsds charactersWitryna17 lip 2024 · A coupled field-circuit analysis method for the HTS cable considering magnetic hysteresis by using the improved XFEM is presented. This hysteresis model is firstly combined with the improved XFEM to determine the magnetic hysteresis inductance. A magnetic field-circuit coupled program for current analysis of … tsds child findWitryna1 mar 2015 · Based on an extra-dof-free partition of unity enrichment technique (Tian, … tsd sicroWitryna1 sty 2024 · An improved XFEM (IXFEM) for three-dimensional linear elastic fracture … tsds interior architectsWitrynaFor the purpose of this research, an extended finite element method (XFEM) code is developed to simulate fracture propagation, initiation and intersection. The motivation behind applying XFEM are the desire to avoid remeshing in each step of the fracture propagation, being able to consider arbitrary varying geometry of natural fractures and … tsds population served codeWitrynaImproved XFEM: algorithms, software and applications Rong Tian, Longfei Wen Software center for high performance numerical simulation, Institute of Applied Physics and Computational Mathematics, Beijing 100088, China Abstract. The extended finite element method (XFEM) [1-3] is widely accepted in academy tsd siteWitrynaxFEM方法[7￣9]贝0利用有限元形函数构造出求解域上的一组单位分解函数，将节点相邻单元组成的节点影响域看作一组覆盖，通过在每个覆盖上定义位移模式，相应的全域的位移近似描述可以写为 ‰p（x）＝∑％（x）∑乃p，（x） philmon ghirmai