Numerical modelling of damage evolution in ingot forging

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

doi:10.4028/www.scientific.net/KEM.651-653.237

Numerical modelling of damage evolution in ingot forging

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

Technical University of Lisbon

Research output: Contribution to journal › Conference article › Research › peer-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 language	English
Journal	Key Engineering Materials
Volume	651-653
Pages (from-to)	237-242
ISSN	1013-9826
DOIs	https://doi.org/10.4028/www.scientific.net/KEM.651-653.237
Publication status	Published - 2015
Event	18th International ESAFORM Conference on Material Forming - Graz, Austria Duration: 15 Apr 2015 → 17 Apr 2015 Conference number: 18 http://www.esaform2015.at/

Conference

Conference	18th International ESAFORM Conference on Material Forming
Number	18
Country/Territory	Austria
City	Graz
Period	15/04/2015 → 17/04/2015
Internet address	http://www.esaform2015.at/

Keywords

Ingot forging
Porous plasticity
Ductile damage
Defects minimization
FEM-analysis

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title = "Numerical modelling of damage evolution in ingot forging",

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. ",

keywords = "Ingot forging, Porous plasticity, Ductile damage, Defects minimization, FEM-analysis",

author = "Peter Christiansen and Martins, {Paulo A.F.} and Bay, {Niels Oluf} and Hattel, {Jesper Henri}",

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language = "English",

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T1 - Numerical modelling of damage evolution in ingot forging

AU - Christiansen, Peter

AU - Martins, Paulo A.F.

AU - Bay, Niels Oluf

AU - Hattel, Jesper Henri

N1 - Conference code: 18

PY - 2015

Y1 - 2015

N2 - 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.

AB - 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.

KW - Ingot forging

KW - Porous plasticity

KW - Ductile damage

KW - Defects minimization

KW - FEM-analysis

U2 - 10.4028/www.scientific.net/KEM.651-653.237

DO - 10.4028/www.scientific.net/KEM.651-653.237

M3 - Conference article

SN - 1013-9826

VL - 651-653

SP - 237

EP - 242

JO - Key Engineering Materials

JF - Key Engineering Materials

T2 - 18th International ESAFORM Conference on Material Forming

Y2 - 15 April 2015 through 17 April 2015

ER -

Numerical modelling of damage evolution in ingot forging

Abstract

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Keywords

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