On the modeling of rolling: a special look at edge cracking

Large amounts of rolled sheet and strip production are reworked yearly due to defects that include edge cracking. In an effort to understand the mechanism and causes of edge cracking during rolling a finite element model was used. These models utilized the commercial package ABAQUS and its built in automatic mass scaling scheme. A subroutine (VUMAT) was developed to provide for rate dependent elasto-viscoplastic response and evolution of damage. Results of the model and damage are presented for differing lay-on temperatures, width to thickness ratios, edge shapes, frictional values, and asymmetric rolling. In addition, tips on modeling rolling and secondary tensile stresses are discussed.

Name thesis:degree_name

M.S.

Level thesis:degree_level

Thesis

Discipline thesis:degree_discipline

Mechanical Engineering

Grantor

University of Illinois at Urbana-Champaign

Year dc:date

2012

Author dc:creator

• Halm, Katherine

Contributors dc:contributor

• Beaudoin, Armand J.

• Rolling
• Edge Cracking
• Finite Element Analysis
• automatic mass scaling

Statement dc:rights

• Copyright 2012 Katherine Halm

Language dc:language

en

Handle dc:identifier

http://hdl.handle.net/2142/34397

OAI identifier oai:identifier

oai:www.ideals.illinois.edu:2142/34397