期刊
COMPUTER METHODS IN APPLIED MECHANICS AND ENGINEERING
卷 342, 期 -, 页码 458-473出版社
ELSEVIER SCIENCE SA
DOI: 10.1016/j.cma.2018.07.038
关键词
SPH; Eulerian; Total Lagrangian; Thermomechanical; Large deformations; Abaqus
资金
- Natural Sciences and Engineering Research council of Canada (NSERC)
- Heroux-Devtek inc.
Challenging problems of computational mechanics may often be characterized by large deformations that are common in manufacturing processes such as forging. The finite element method faces difficulties in simulating large deformations, due to severe mesh distortion. A solution to overcome these difficulties is to use meshless methods like Smoothed Particle Hydrodynamics (SPH). This paper presents a thermomechanical SPH in total Lagrangian formulation to simulate efficiently large deformations thermomechanical problems. The continuum is modeled as a Hamiltonian system of particles (energy-based framework) when dissipative effects are considered where the constitutive equation is represented via an internal energy term. A comparison with an Eulerian SPH formulation and FEM is presented to assess the accuracy of the total Lagrangian formulation through examples of high velocity Taylor impact test and hot forging test. (C) 2018 Elsevier B.V. All rights reserved.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据