A smoothed particle hydrodynamics (SPH) model for simulating surface erosion by impacts of foreign particles

被引：71

作者：

Dong, X. W. ^{[1
,2
]}

Liu, G. R. ^{[2
]}

Li, Zengliang ^{[1
]}

Zeng, W. ^{[2
]}

机构：

[1] China Univ Petr, Coll Mech & Elect Engn, 66 Changjiang Rd, Qingdao, Peoples R China

[2] Univ Cincinnati, Dept Aerosp Engn & Engn Mech, 2851 Woodside Dr, Cincinnati, OH 45221 USA

来源：

TRIBOLOGY INTERNATIONAL | 2016年 / 95卷

关键词：

Smoothed particle hydrodynamics; Improved SPH; Constitutive relations; Erosion by impacts; FINITE-ELEMENT-ANALYSIS; ANGULAR PARTICLES; NUMERICAL-SIMULATION; FLOWS; DEFORMATION; REMOVAL; STRAIN;

D O I：

10.1016/j.triboint.2015.11.038

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

This paper presents a smoothed particle hydrodynamics modeling procedure to simulate surface erosion by impacts. The present SPH is improved based on the standard SPH formulation, by developing SPH formulations for the constitutive relations to describe plastic behavior and ductile fracture process. The improved SPH method is first applied to simulate impacts of particles on ductile targets. Two modified schemes in terms of density correction and kernel gradient correction are adopted to improve the accuracy of the SPH approximation. The present SPH model is applied to simulate the erosion process by angular particles. The results are compared with available experimental data, and good agreements have been achieved in terms of the crater profile and particle kinematic results. (C) 2015 Elsevier Ltd. All rights reserved.

引用

页码：267 / 278

页数：12

共 53 条

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[Anonymous], 2003, Smoothed particle hydrodynamics: a meshfree particle method, DOI DOI 10.1007/S00466-004-0573-1

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