Observations of cyclic deformation behaviors of aluminum sheet and constitutive modeling

Takeshi Uemori; Satoshi Sumikawa; Tetsuo Naka; Fusahito Yoshida

doi:10.1016/j.proeng.2014.10.120

Observations of cyclic deformation behaviors of aluminum sheet and constitutive modeling

Takeshi Uemori, Satoshi Sumikawa, Tetsuo Naka, Fusahito Yoshida

Research output: Contribution to journal › Conference article

2 Citations (Scopus)

Abstract

Aluminum sheet metals have been widely utilized for a light weight construction of automobile. However, these metals still remain one of the difficult materials to predict the accurate final shapes after press forming processes, because of several mechanical features such as plastic anisotropy of yield stress and small Lankford value. In order to solve the problems, the present author has developed a new constitutive model. The model can describe accurate non-proportional hardening behaviors of aluminum sheet metals. In the present research, some experimental procedures were carried out to reveal the mechanical properties of an aluminum sheet under proportional and non-proportional deformations. The comparisons between experimental data and the corresponding calculated results by the proposed constitutive model confirm the advantages of our model.

Original language	English
Pages (from-to)	933-938
Number of pages	6
Journal	Procedia Engineering
Volume	81
DOIs	https://doi.org/10.1016/j.proeng.2014.10.120
Publication status	Published - Jan 1 2014
Externally published	Yes
Event	11th International Conference on Technology of Plasticity, ICTP 2014 - Nagoya, Japan Duration: Oct 19 2014 → Oct 24 2014

Keywords

Aluminum sheet metals
Constitutive model
Non-proportional hardening behaviors

ASJC Scopus subject areas

Engineering(all)

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10.1016/j.proeng.2014.10.120

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Uemori, T., Sumikawa, S., Naka, T., & Yoshida, F. (2014). Observations of cyclic deformation behaviors of aluminum sheet and constitutive modeling. Procedia Engineering, 81, 933-938. https://doi.org/10.1016/j.proeng.2014.10.120

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abstract = "Aluminum sheet metals have been widely utilized for a light weight construction of automobile. However, these metals still remain one of the difficult materials to predict the accurate final shapes after press forming processes, because of several mechanical features such as plastic anisotropy of yield stress and small Lankford value. In order to solve the problems, the present author has developed a new constitutive model. The model can describe accurate non-proportional hardening behaviors of aluminum sheet metals. In the present research, some experimental procedures were carried out to reveal the mechanical properties of an aluminum sheet under proportional and non-proportional deformations. The comparisons between experimental data and the corresponding calculated results by the proposed constitutive model confirm the advantages of our model.",

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author = "Takeshi Uemori and Satoshi Sumikawa and Tetsuo Naka and Fusahito Yoshida",

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AU - Sumikawa, Satoshi

AU - Naka, Tetsuo

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