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Title: Temperature Dependent Constitutive Modeling for Magnesium Alloy Sheet

Abstract

Magnesium alloys have been increasingly used in automotive and electronic industries because of their excellent strength to weight ratio and EMI shielding properties. However, magnesium alloys have low formability at room temperature due to their unique mechanical behavior (twinning and untwining), prompting for forming at an elevated temperature. In this study, a temperature dependent constitutive model for magnesium alloy (AZ31B) sheet is developed. A hardening law based on non linear kinematic hardening model is used to consider Bauschinger effect properly. Material parameters are determined from a series of uni-axial cyclic experiments (T-C-T or C-T-C) with the temperature ranging 150-250 deg. C. The influence of temperature on the constitutive equation is introduced by the material parameters assumed to be functions of temperature. Fitting process of the assumed model to measured data is presented and the results are compared.

Authors:
 [1];  [2];  [3];  [4]
  1. Department of Mechanical Engineering, Korea Polytechnic University (Korea, Republic of)
  2. Department of Mechanical Engineering, Ohio State University (United States)
  3. Department of Mechanical Design, Induk University (Korea, Republic of)
  4. Division of Mechanical Engineering and Mechatronics, Kangwon National University (Korea, Republic of)
Publication Date:
OSTI Identifier:
21366763
Resource Type:
Journal Article
Journal Name:
AIP Conference Proceedings
Additional Journal Information:
Journal Volume: 1252; Journal Issue: 1; Conference: NUMIFORM 2010: 10. international conference on numerical methods in industrial forming processes dedicated to Professor O. C. Zienkiewicz (1921-2009), Pohang (Korea, Republic of), 13-17 Jun 2010; Other Information: DOI: 10.1063/1.3457496; (c) 2010 American Institute of Physics; Journal ID: ISSN 0094-243X
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; COMPRESSION STRENGTH; EQUATIONS; HARDENING; INDUSTRY; MAGNESIUM ALLOY-AZ31B; NONLINEAR PROBLEMS; SHIELDING; SIMULATION; TEMPERATURE DEPENDENCE; TEMPERATURE RANGE 0273-0400 K; TEMPERATURE RANGE 0400-1000 K; TESTING; TWINNING; ALLOYS; ALUMINIUM ALLOYS; MAGNESIUM ALLOYS; MAGNESIUM BASE ALLOYS; MANGANESE ADDITIONS; MANGANESE ALLOYS; MECHANICAL PROPERTIES; TEMPERATURE RANGE; TRANSITION ELEMENT ALLOYS; ZINC ALLOYS

Citation Formats

Lee, Jong K, Lee, June K, Kim, Hyung S, and Kim, Heon Y. Temperature Dependent Constitutive Modeling for Magnesium Alloy Sheet. United States: N. p., 2010. Web. doi:10.1063/1.3457496.
Lee, Jong K, Lee, June K, Kim, Hyung S, & Kim, Heon Y. Temperature Dependent Constitutive Modeling for Magnesium Alloy Sheet. United States. https://doi.org/10.1063/1.3457496
Lee, Jong K, Lee, June K, Kim, Hyung S, and Kim, Heon Y. 2010. "Temperature Dependent Constitutive Modeling for Magnesium Alloy Sheet". United States. https://doi.org/10.1063/1.3457496.
@article{osti_21366763,
title = {Temperature Dependent Constitutive Modeling for Magnesium Alloy Sheet},
author = {Lee, Jong K and Lee, June K and Kim, Hyung S and Kim, Heon Y},
abstractNote = {Magnesium alloys have been increasingly used in automotive and electronic industries because of their excellent strength to weight ratio and EMI shielding properties. However, magnesium alloys have low formability at room temperature due to their unique mechanical behavior (twinning and untwining), prompting for forming at an elevated temperature. In this study, a temperature dependent constitutive model for magnesium alloy (AZ31B) sheet is developed. A hardening law based on non linear kinematic hardening model is used to consider Bauschinger effect properly. Material parameters are determined from a series of uni-axial cyclic experiments (T-C-T or C-T-C) with the temperature ranging 150-250 deg. C. The influence of temperature on the constitutive equation is introduced by the material parameters assumed to be functions of temperature. Fitting process of the assumed model to measured data is presented and the results are compared.},
doi = {10.1063/1.3457496},
url = {https://www.osti.gov/biblio/21366763}, journal = {AIP Conference Proceedings},
issn = {0094-243X},
number = 1,
volume = 1252,
place = {United States},
year = {Tue Jun 15 00:00:00 EDT 2010},
month = {Tue Jun 15 00:00:00 EDT 2010}
}