OS2301 アルミの破断に関する基礎特性調査(OS23-1 構造強度とエネルギ吸収,OS-23 自動車車体の構造強度・構造形成・疲労信頼性と軽量化)

大國 崇; 伊澤 直; 大井 秀哉; 大角 大; 佐田 俊一; 周東 弘哲; 定直 憲太郎; 鈴木 芳雄; 高田 賢治; 玉置 健二; 新居 直樹; 西浦 友子; 西村 律; 増田 紘一; 水越 秀雄; 日下 貴之

doi:10.1299/jsmemm.2011._OS2301-1_

2011

Session ID : OS2301

DOI https://doi.org/10.1299/jsmemm.2011._OS2301-1_

Conference information

OS2301 Investigation of Aluminum Fracture

Takashi OHKUNI, Tadashi IZAWA, Shuya OI, Masaru OHKADO, Shunichi SATA, Hirosato SYUTOU, Kentaro JOJIKI, Yoshio SUZUKI, Kenji TAKADA, Kenji TAMAKI, Naoki NIII, Yuko NISHIURA, Ritsu NISHIMURA, Koichi MASUDA, Hideo MIZUKOSHI, Takayuki KUSAKA

Author information

Takashi OHKUNI
TOYOTA AUTO BODY CO.,LTD.
Tadashi IZAWA
[in Japanese]
Shuya OI
[in Japanese]
Masaru OHKADO
[in Japanese]
Shunichi SATA
[in Japanese]
Hirosato SYUTOU
[in Japanese]
Kentaro JOJIKI
[in Japanese]
Yoshio SUZUKI
[in Japanese]
Kenji TAKADA
[in Japanese]
Kenji TAMAKI
[in Japanese]
Naoki NIII
[in Japanese]
Yuko NISHIURA
[in Japanese]
Ritsu NISHIMURA
[in Japanese]
Koichi MASUDA
[in Japanese]
Hideo MIZUKOSHI
[in Japanese]
Takayuki KUSAKA
[in Japanese]

Keywords: Aluminum alloy, Fracture Criterion, Finite Element Method, Gurson model, Datsko-Yang model

CONFERENCE PROCEEDINGS FREE ACCESS

Details

Abstract

The purpose of this study is to improve the prediction accuracy of fracture in impact CAE analysis of extruded aluminum. We study two methods for prediction of aluminum fracture, Gurson method and Datsko-Yang method. In study of Gurson method, we decide measurement method of material properties used for Gurson model. CAE analysis to use Gurson method with these properties can predict aluminum fracture. On the other hand, Datsko-Yang method is able to predict fracture limits of bending flat plate. However, fracture is often occurred at comer of edge. So, we improve Datsko-Yang method and suggest formula of fracture judgment. This formula can predict not only flat plate but also corner of edge.

Corresponding author

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