An elastic-perfectly plastic model for simulating an aluminum particle behavior during plasma thermal spraying using the finite element method
L.Benramoul, A.Abdellah El-Hadj
Surface & Coatings Technology
abstract
It is a 2D numerical study which treats the splat and flattening of the droplet during a thermal spray-ing process. An aluminum particle at a high temperature is impacted on steel substrate.A perfectly elastic–plastic model is used instead of the VOF method which is exclusively used in the literature.For this purpose,the finite element method ith Ansys mechanical APDL program is used to solve the govern-ing equations.Displacement,elastic and plastic strains,Von-Mises stress, energy densities,and contact pressure are evaluated during the impact of the particle. Additionally, it is found that the initial impact velocity has a significant effect on splat behavior.This mechanical model gives a promise results that can be improved to help understand the impact and flattening phenomenon.
keywords: Thermal spray,Ansys,Droplet,Elastic-perfectly plastic,VOF method
参考文献 略
本站文章未经允许不得转载；如欲转载请注明出处，北京桑尧科技开发有限公司网址：http://www.sunspraying.com/
|
