TY - GEN
T1 - Finite Element Modelling of a Compression Test on AISI 1016 Cylindrical Steel
T2 - 2nd International Conference on Mechanical Engineering Design,ICMechD 2019
AU - Musonda, V.
AU - Akinlabi, E. T.
N1 - Publisher Copyright:
© 2021, Springer Nature Singapore Pte Ltd.
PY - 2020/8/21
Y1 - 2020/8/21
N2 - Predicting the material flow behaviour of steel is always an important undertaking especially when there is a need to decide on a suitable material required for a particular application. Compression test is normally considered as a standard bulk workability test and a common quality control test, which can be applied to hot forging operations, or cold upset forging. The test is useful when the friction conditions, especially in hot working, require an evaluation. The flow stress data for metals at various temperatures and strain rates could also be predicted. The aim of this study was to conduct a hot compression test on AISI 1016 carbon steel using finite element modelling (FEM) in order to predict the flow stress behaviour of the material including the damage prediction due to shear cracking. Three lubricating conditions namely: Coulomb μ= 0.3 (lubricated ), shear μ= 0.3 lubricated and dry μ= 0.7 were used in the modelling. The results indicate that the largest deformation appears as a shear cross in form of an hourglass in the plastic zone of the specimen at the centre of the cylinder and varies according to the lubricating condition, while the less deformed regions are stagnant as dead-metal zones (DMZ). The highest damaging parameter, though moderate appears at the bulge of the cylinder and this can be the source of shear cracking in the material. It was also observed that there is inhomogeneous deformation inside the workpiece, which could result in substantial damage to the forging process and forging quality respectively. Besides, inhomogeneous deformation could also worsen the finish-forging process.
AB - Predicting the material flow behaviour of steel is always an important undertaking especially when there is a need to decide on a suitable material required for a particular application. Compression test is normally considered as a standard bulk workability test and a common quality control test, which can be applied to hot forging operations, or cold upset forging. The test is useful when the friction conditions, especially in hot working, require an evaluation. The flow stress data for metals at various temperatures and strain rates could also be predicted. The aim of this study was to conduct a hot compression test on AISI 1016 carbon steel using finite element modelling (FEM) in order to predict the flow stress behaviour of the material including the damage prediction due to shear cracking. Three lubricating conditions namely: Coulomb μ= 0.3 (lubricated ), shear μ= 0.3 lubricated and dry μ= 0.7 were used in the modelling. The results indicate that the largest deformation appears as a shear cross in form of an hourglass in the plastic zone of the specimen at the centre of the cylinder and varies according to the lubricating condition, while the less deformed regions are stagnant as dead-metal zones (DMZ). The highest damaging parameter, though moderate appears at the bulge of the cylinder and this can be the source of shear cracking in the material. It was also observed that there is inhomogeneous deformation inside the workpiece, which could result in substantial damage to the forging process and forging quality respectively. Besides, inhomogeneous deformation could also worsen the finish-forging process.
KW - Compression test
KW - Damage prediction
KW - DMZ
KW - FEM
KW - Flow stress
KW - Material flow behaviour
KW - Shear cross
UR - http://www.scopus.com/inward/record.url?scp=85093890453&partnerID=8YFLogxK
U2 - 10.1007/978-981-15-4488-0_24
DO - 10.1007/978-981-15-4488-0_24
M3 - Conference contribution
AN - SCOPUS:85093890453
SN - 9789811544873
T3 - Lecture Notes in Mechanical Engineering
SP - 263
EP - 276
BT - Trends in Mechanical and Biomedical Design
A2 - Akinlabi, Esther Titilayo
A2 - Ramkumar, P.
A2 - Selvaraj, M.
PB - Springer
CY - Singapore
Y2 - 25 April 2019 through 26 April 2019
ER -