Numerical modelling of damage evolution in ingot forging

Peter Christiansen, Paulo A.F. Martins, Niels Oluf Bay, Jesper Henri Hattel

Research output: Contribution to journalConference articleResearchpeer-review

Abstract

The ingot forging process is numerically simulated applying both the Shima-Oyane porous plasticity model as a coupled damage model and the uncoupled normalized Cockcroft & Latham criterion. Four different cases including two different lower die angles (120º and 180º) and two different sizes of feed (400mm and 800mm) are analysed. Comparison of the simulation results with recommendations in literature on ingot forging, indicates the normalized Cockcroft & Latham damage criterion to be the most realistic of the two.
Original languageEnglish
JournalKey Engineering Materials
Volume651-653
Pages (from-to)237-242
ISSN1013-9826
DOIs
Publication statusPublished - 2015
Event18th International ESAFORM Conference on Material Forming - Graz, Austria
Duration: 15 Apr 201517 Apr 2015
Conference number: 18
http://www.esaform2015.at/

Conference

Conference18th International ESAFORM Conference on Material Forming
Number18
CountryAustria
CityGraz
Period15/04/201517/04/2015
Internet address

Keywords

  • Ingot forging
  • Porous plasticity
  • Ductile damage
  • Defects minimization
  • FEM-analysis

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