Affiliation:
1. Nanchang Hangkong Univerisity
2. Nanchang Hangkong University
Abstract
Constructing accurate constitutive equation from the optimal material constants is the basis for finite element numerical simulation. To accurately describe the creep ageing behavior of 2A12 aluminum alloy, the present work is tentatively to construct an elastic-plastic constitutive model for simulation based on the ANSYS environment. A time hardening model including two stages of primary and steady-state is physically derived firstly, and then determined by electronic creep tensile tests. The material constants within the creep constitutive equations are obtained. Furthermore, to verify the feasibility of the material model, the ANSYS based numerical scheme is established to simulate the creep tensile process by using the proposed material model. Results show that the creep constitutive equation can better describe the deformation characteristics of materials, and the numerical simulations and experimental test points are in good agreement.
Publisher
Trans Tech Publications, Ltd.
Reference10 articles.
1. K C Ho, J Lin, T A Dean, J Mater. Process. Technol. 153-154 (2004) 122-127.
2. S Foroudastan, John Peddieson, MC Holman, J. Eng. Mater. Technol. 114 (1992) 71-76.
3. W L Hu, Z R Wang, Comput. Mater. Sci. 46 (2009) 893-901.
4. G J Zhang, G Liu, X D Ding et al., Metal J. 39 (2003) 803-808. [In China].
5. Maria Carmo Andrade Nono, R.A. Vieira et al., Mater. Sci. Forum. 530-531(2006) 690-695.
Cited by
2 articles.
订阅此论文施引文献
订阅此论文施引文献,注册后可以免费订阅5篇论文的施引文献,订阅后可以查看论文全部施引文献