کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
9952337 | 1447393 | 2018 | 38 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Thermomechanical total Lagrangian SPH formulation for solid mechanics in large deformation problems
ترجمه فارسی عنوان
فرمول ترکیبی لرنگان ترکیبی ترمومکانیکی برای مکانیک جامد در مشکلات تغییر شکل بزرگ
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی کامپیوتر
نرم افزارهای علوم کامپیوتر
چکیده انگلیسی
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.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Computer Methods in Applied Mechanics and Engineering - Volume 342, 1 December 2018, Pages 458-473
Journal: Computer Methods in Applied Mechanics and Engineering - Volume 342, 1 December 2018, Pages 458-473
نویسندگان
Kadiata Ba, Augustin Gakwaya,