Numerically simulating impact disruptions of cohesive glass bead agglomerates using the soft-sphere discrete element method

نویسندگان

  • Stephen R. Schwartz
  • Patrick Michel
  • Derek C. Richardson
چکیده

0019-1035/$ see front matter 2013 Elsevier Inc. All rights reserved. http://dx.doi.org/10.1016/j.icarus.2013.05.007 ⇑ Corresponding author at: Department of Astronomy Computer and Space Sciences Building, Stadium Drive, University of Maryland, College Park MD 207422421, United States. Fax: +1 301 314 9067. E-mail address: [email protected] (S.R. Schwartz). Stephen R. Schwartz a,b,⇑, Patrick Michel , Derek C. Richardson a

برای دانلود رایگان متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

A Numerical Study on Agglomeration in High Temperature Fluidized beds

Soft-sphere discrete element method (DEM) and Navier-Stokes equations were coupled with equations of energy for gas and solids to investigate the process of agglomeration in fluidized bed of polyethylene particles at high temperature. The Newton’s second law of motion was adapted for translational and rotational motion of particles and agglomerates. The cohesive force for polyethylene particles...

متن کامل

Low-speed impact simulations into regolith in support of asteroid sampling mechanism design I_ Comparison with 1-g experiments

This study is carried out in the framework of sample-return missions to asteroids that use a low-speed projectile as the primary component of its sampling mechanism (e.g., JAXA’s Hayabusa and Hayabusa2 missions). We perform numerical simulations of such impacts into granular materials using different projectile shapes under Earth's gravity. We then compare the amounts of ejected mass obtained i...

متن کامل

Back-calculation of mechanical parameters of shell and balls materials from discrete element method simulations

Discrete Element Method (DEM) is extensively used for mathematical modeling and simulating the behavior of discrete discs and discrete spheres in two and three dimensional space, respectively. Prediction of particles flow regime, power draw and kinetic energy for a laboratory or an industrial mill is possible by DEM simulation. In this article, a new approach was used to assess the main paramet...

متن کامل

A Cohesive Zone Model for Crack Growth Simulation in AISI 304 Steel

Stable ductile crack growth in 3 mm thick AISI 304 stainless steel specimens has been investigated experimentally and numerically. Multi-linear Isotropic Hardening method coupled with the Von-Mises yield criterion was adopted for modeling elasto-plastic behavior of the material. Mode-I CT fracture specimens have been tested to generate experimental load-displacement-crack growth data during sta...

متن کامل

Numerical modelling of the breakage of loose agglomerates of fine particles

a r t i c l e i n f o Keywords: Loose agglomerates Breakage Discrete element method Fine particles This paper presents a numerical study of the breakage of loose agglomerates based on the discrete element method. Agglomerates of fine mannitol particles were impacted with a target wall at different velocities and angles. It was observed that the agglomerates on impact experienced large plastic d...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

عنوان ژورنال:

دوره   شماره 

صفحات  -

تاریخ انتشار 2013