Analysis of Hole Expansion Forming Based on Arbitrary-Segments Spline Yield Function
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- TSUTAMORI Hideo
- 大同大学 工学部 機械工学科
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- AMAISHI Toshiro
- (株)JSOL
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- KIMOTO Takaaki
- (既卒)大同大学大学院 工学研究科 機械工学専攻
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- NISHIWAKI Takeshi
- 大同大学 工学部 機械工学科
Bibliographic Information
- Other Title
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- 任意セグメント型スプライン降伏関数による穴広げ成形の解析
- ニンイ セグメントガタ スプライン コウフク カンスウ ニ ヨル アナヒロゲ セイケイ ノ カイセキ
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Abstract
<p>The hole expansion behaviors of mild steel sheets were investigated by experiments and finite element simulations, using three anisotropic yield functions: Hill’48, Yld2000-2d, and Spline models. Spline yield function was expanded to allow the arbitrary segments given by experimental stresses, strains, and strain increments, which are normal vector on the yield surfaces, in the biaxial stress state. Relationships between the yield function models and prediction accuracy were examined through the comparison of thickness distributions at a certain distance from the hole edge. In this work, it was found that accurate modeling of anisotropy affected the accurate prediction of thickness. It was concluded that Spline yield function, which was given the most numbers of experimental values, is the most accurate model in this research.</p>
Journal
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- Journal of the Japan Society for Technology of Plasticity
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Journal of the Japan Society for Technology of Plasticity 60 (699), 115-120, 2019
The Japan Society for Technology of Plasticity
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Keywords
Details 詳細情報について
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- CRID
- 1390564238087253504
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- NII Article ID
- 130007636479
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- NII Book ID
- AN00135062
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- ISSN
- 18820166
- 00381586
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- NDL BIB ID
- 029678067
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- Text Lang
- ja
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- Data Source
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- JaLC
- NDL
- Crossref
- CiNii Articles
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- Abstract License Flag
- Disallowed