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NUMERICAL ANALYSIS OF DAMAGE DURING HOT FORMING

JOANNA SZYNDLER, MUHAMMAD IMRAN, MUHAMMAD JUNAID AFZAL, MARKUS BAMBACH



Abstract: The main aim of the presented research is the analysis of damage evolution in 16MnCrS5 steel during hot forming based on results obtained from finite element modelling. Particular attention is put on the interaction between dynamic recrystallization (DRX) and damage initiation at the matrix-inclusion interface. Moreover, a modified Gurson-TvergaardNeedleman (GTN) model is proposed with the nucleation criterion taken from an extended Horstemeyer model, which predicts damage nucleation based on material softening due to the DRX and stress state in the material.

Key words: Damage, Dynamic recrystallization, Void nucleation, Numerical modelling


 
GENERAL INFORMATION

Title of Journal:
Computer Methods in Materials Science QUARTERLY

Title of Journal in Polish:
Informatyka w Technologii Materiałów KWARTALNIK

ISSN: 1641-8581
Publishing House: AKAPIT
Current issue: Vol. 19, 2019, No. 1
 
 
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