Meshfree radial point interpolation method for analysis of viscoplastic problems

被引：25
作者：
Kazemi, Z. [1 ]
Hematiyan, M. R. [1 ]
Vaghefi, R. [2 ]
机构：
[1] Shiraz Univ, Dept Mech Engn, Shiraz 71936, Iran
[2] Fasa Univ, Dept Mech Engn, Fasa, Iran
来源：
ENGINEERING ANALYSIS WITH BOUNDARY ELEMENTS | 2017年 / 82卷
关键词：
Viscoplastic; Perzyna model; Meshfree radial point interpolation method (RPIM); Cartesian transformation method (CTM); SHEAR BANDS; CONSTITUTIVE-EQUATIONS; DOMAIN INTEGRALS; TANGENT MODULUS; WEAK-FORM; DEFORMATION; SIMULATION; PLASTICITY; ALGORITHM; MODEL;
D O I：
10.1016/j.enganabound.2017.06.012
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
A truly meshfree radial point interpolation method (RPIM) for analysis of viscoplastic problems is presented. Without recourse to any background cell, a fast and accurate meshfree integration method is employed for computation of the domain integrals in the RPIM. The effects of the total number of nodes and the parameters of the meshfree method on the accuracy of the solutions are studied too. Moreover, the effects of the viscoplastic material parameters on the results are investigated. To demonstrate the accuracy of the proposed method and provide a comprehensive investigation of the viscoplastic and meshfree parameters, several numerical examples are presented. Excellent agreements are observed through comparing the obtained results with those retrieved by the finite element method. (C) 2017 Elsevier Ltd. All rights reserved.
引用
收藏
页码：172 / 184
页数：13
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