NUMERICAL INVESTIGATION OF STRESS AND STRAIN DISTRIBUTION IN EQUAL CHANNEL ANGULAR EXTRUSION OF AL 6063 ALLOY

Abioye, Oluwabunmi P. and Abioye, Abiodun A. and Afolalu, Sunday A. and Udo, Mfon .O (2018) NUMERICAL INVESTIGATION OF STRESS AND STRAIN DISTRIBUTION IN EQUAL CHANNEL ANGULAR EXTRUSION OF AL 6063 ALLOY. International Journal of Civil Engineering and Technology, 9 (11). pp. 522-531. ISSN 0976-6308 and ISSN Online: 0976-6316

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Abstract

This research work is aimed at studying the stress and strain distribution in the Equal Channel Angular Extrusion of Al 6063. Equal Channel Angular Extrusion (ECAE) processes enable material achieve nanoscale ultra-fine grain size without altering the physical properties. Automatic Dynamic Incremental Nonlinear Analysis (ADINA) which is a Finite Element Analysis (FEA) based solution was used to determine the stress and strain distribution in the material subjected to a single ECAE process. The model ECAE die and Al 6063 billet was developed with ADINA, the ECAE process were simulated and the data from the application was analysed. The result from the simulation showed that after a pass of ECAE of Al 6063, the average effective stress and strain were 203.08 MPa and 0.67 respectively and were highest at the inner part of the billet. Also, the average effective stress and strain were 178.02 MPa and 0.59 respectively at the mid part of the billet and the average effective stress and strain of 178.37 MPa and 0.58 respectively were lowest at the outer part of the billet. The results showing higher stress and strain distribution in the billet part closest to the die inner corner confirms that ECAE process for Al 6063 was inhomogeneous and it is an effective method in increasing the yield strength of Al 6063 alloy.

Item Type:	Article
Uncontrolled Keywords:	Equal channel angular extrusion (ECAE), Simulation, ADINA, Al 6063, Stress, Strain
Subjects:	T Technology > TJ Mechanical engineering and machinery T Technology > TP Chemical technology
Divisions:	Faculty of Engineering, Science and Mathematics > School of Engineering Sciences
Depositing User:	Mrs Patricia Nwokealisi
Date Deposited:	21 Feb 2019 10:28
Last Modified:	21 Feb 2019 10:28
URI:	http://eprints.covenantuniversity.edu.ng/id/eprint/12418

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