skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Mesh Re-zoning In Multi-Stand Rolling

Abstract

A solution to mesh distortion and subsequent breakdown in solution procedure in the finite element analysis of multi-stand rolling is presented in this work. Simple cubic spline fits are applied on the deformed outer surface of the rolled material to smoothen the geometry due to distortion from the deformation in the previous stands. A mesh re-zoning algorithm found in the literature is applied while retaining the original number of elements in the new mesh. The appropriate boundary conditions are applied efficiently with the use of a linear interpolation. The approach is illustrated for the multi-stand rolling of a nickel-base super alloy bar of circular cross-section. An in-house finite element program for steady state rolling, based on ALE technique was employed for the current work. The results show that the mesh re-zoning algorithm eliminates the numerical issues associated with the mesh distortion. The predicted results for the final shape are also found to be in good agreement with the experimental data.

Authors:
;  [1];  [2]
  1. Department of Mechanical Engineering and Engineering Science, University of North Carolina at Charlotte, 9201 University City Blvd, Charlotte, NC 28223-0001 (United States)
  2. ATI Allvac, 2020 Ashcraft Avenue, Monroe, NC 28111 (United States)
Publication Date:
OSTI Identifier:
21057347
Resource Type:
Journal Article
Resource Relation:
Journal Name: AIP Conference Proceedings; Journal Volume: 908; Journal Issue: 1; Conference: NUMIFORM '07: 9. international conference on numerical methods in industrial forming processes, Porto (Portugal), 17-21 Jun 2007; Other Information: DOI: 10.1063/1.2740971; (c) 2007 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; ALGORITHMS; BOUNDARY CONDITIONS; DEFORMATION; FINITE ELEMENT METHOD; HEAT RESISTING ALLOYS; MESH GENERATION; NICKEL; NICKEL ALLOYS; ROLLING; STEADY-STATE CONDITIONS; SURFACES

Citation Formats

Subramanian, K., Cherukuri, H. P., and Minisandram, R. S.. Mesh Re-zoning In Multi-Stand Rolling. United States: N. p., 2007. Web. doi:10.1063/1.2740971.
Subramanian, K., Cherukuri, H. P., & Minisandram, R. S.. Mesh Re-zoning In Multi-Stand Rolling. United States. doi:10.1063/1.2740971.
Subramanian, K., Cherukuri, H. P., and Minisandram, R. S.. Thu . "Mesh Re-zoning In Multi-Stand Rolling". United States. doi:10.1063/1.2740971.
@article{osti_21057347,
title = {Mesh Re-zoning In Multi-Stand Rolling},
author = {Subramanian, K. and Cherukuri, H. P. and Minisandram, R. S.},
abstractNote = {A solution to mesh distortion and subsequent breakdown in solution procedure in the finite element analysis of multi-stand rolling is presented in this work. Simple cubic spline fits are applied on the deformed outer surface of the rolled material to smoothen the geometry due to distortion from the deformation in the previous stands. A mesh re-zoning algorithm found in the literature is applied while retaining the original number of elements in the new mesh. The appropriate boundary conditions are applied efficiently with the use of a linear interpolation. The approach is illustrated for the multi-stand rolling of a nickel-base super alloy bar of circular cross-section. An in-house finite element program for steady state rolling, based on ALE technique was employed for the current work. The results show that the mesh re-zoning algorithm eliminates the numerical issues associated with the mesh distortion. The predicted results for the final shape are also found to be in good agreement with the experimental data.},
doi = {10.1063/1.2740971},
journal = {AIP Conference Proceedings},
number = 1,
volume = 908,
place = {United States},
year = {Thu May 17 00:00:00 EDT 2007},
month = {Thu May 17 00:00:00 EDT 2007}
}