Prediction of hot tearing for a partially solidified bismuth bronze by using finite element method analysis

Akira Matsushita; Tomoaki Nakazawa; Toshimitsu Okane; Makoto Yoshida

Prediction of hot tearing for a partially solidified bismuth bronze by using finite element method analysis

Akira Matsushita, Tomoaki Nakazawa, Toshimitsu Okane, Makoto Yoshida

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Abstract

The aim of this study is the prediction of solidification cracking, or hot tearing, for bismuth bronze by fluid flow, solidification, and thermal stress analysis. Constitutive equation required for the analysis was experimentally constructed as a viscoelastic equation by using tensile and relaxation test in the partially solidified state. For the purpose of predicting crack defects, some parameters were examined as cracking criteria, e.g. hot tearing indicator (HTI) which is the equivalent plastic strain during solidification [1]. The prediction results were compared with crack locations of the experimental castings by a copper mold in order to validate the analysis. As a result, there was a reasonable correlation between the distribution of HTI and cracking occurred during solidification.

Original language	English
Title of host publication	72nd World Foundry Congress, WFC 2016
Publisher	The WFO (The World Foundry Organization Ltd)
Pages	333-334
Number of pages	2
ISBN (Electronic)	9781510833128
Publication status	Published - 2016
Event	72nd World Foundry Congress, WFC 2016 - Nagoya, Japan Duration: 2016 May 21 → 2016 May 25

Other

Other	72nd World Foundry Congress, WFC 2016
Country/Territory	Japan
City	Nagoya
Period	16/5/21 → 16/5/25

Keywords

Hot tearing
Semi-solid
Solidification cracking
Thermal stress analysis
Viscoelastic

ASJC Scopus subject areas

Materials Chemistry
Metals and Alloys

Cite this

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title = "Prediction of hot tearing for a partially solidified bismuth bronze by using finite element method analysis",

abstract = "The aim of this study is the prediction of solidification cracking, or hot tearing, for bismuth bronze by fluid flow, solidification, and thermal stress analysis. Constitutive equation required for the analysis was experimentally constructed as a viscoelastic equation by using tensile and relaxation test in the partially solidified state. For the purpose of predicting crack defects, some parameters were examined as cracking criteria, e.g. hot tearing indicator (HTI) which is the equivalent plastic strain during solidification [1]. The prediction results were compared with crack locations of the experimental castings by a copper mold in order to validate the analysis. As a result, there was a reasonable correlation between the distribution of HTI and cracking occurred during solidification.",

keywords = "Hot tearing, Semi-solid, Solidification cracking, Thermal stress analysis, Viscoelastic",

author = "Akira Matsushita and Tomoaki Nakazawa and Toshimitsu Okane and Makoto Yoshida",

year = "2016",

language = "English",

pages = "333--334",

booktitle = "72nd World Foundry Congress, WFC 2016",

publisher = "The WFO (The World Foundry Organization Ltd)",

note = "72nd World Foundry Congress, WFC 2016 ; Conference date: 21-05-2016 Through 25-05-2016",

}

TY - GEN

T1 - Prediction of hot tearing for a partially solidified bismuth bronze by using finite element method analysis

AU - Matsushita, Akira

AU - Nakazawa, Tomoaki

AU - Okane, Toshimitsu

AU - Yoshida, Makoto

PY - 2016

Y1 - 2016

N2 - The aim of this study is the prediction of solidification cracking, or hot tearing, for bismuth bronze by fluid flow, solidification, and thermal stress analysis. Constitutive equation required for the analysis was experimentally constructed as a viscoelastic equation by using tensile and relaxation test in the partially solidified state. For the purpose of predicting crack defects, some parameters were examined as cracking criteria, e.g. hot tearing indicator (HTI) which is the equivalent plastic strain during solidification [1]. The prediction results were compared with crack locations of the experimental castings by a copper mold in order to validate the analysis. As a result, there was a reasonable correlation between the distribution of HTI and cracking occurred during solidification.

AB - The aim of this study is the prediction of solidification cracking, or hot tearing, for bismuth bronze by fluid flow, solidification, and thermal stress analysis. Constitutive equation required for the analysis was experimentally constructed as a viscoelastic equation by using tensile and relaxation test in the partially solidified state. For the purpose of predicting crack defects, some parameters were examined as cracking criteria, e.g. hot tearing indicator (HTI) which is the equivalent plastic strain during solidification [1]. The prediction results were compared with crack locations of the experimental castings by a copper mold in order to validate the analysis. As a result, there was a reasonable correlation between the distribution of HTI and cracking occurred during solidification.

KW - Hot tearing

KW - Semi-solid

KW - Solidification cracking

KW - Thermal stress analysis

KW - Viscoelastic

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M3 - Conference contribution

AN - SCOPUS:85016628329

SP - 333

EP - 334

BT - 72nd World Foundry Congress, WFC 2016

PB - The WFO (The World Foundry Organization Ltd)

T2 - 72nd World Foundry Congress, WFC 2016

Y2 - 21 May 2016 through 25 May 2016

ER -

Prediction of hot tearing for a partially solidified bismuth bronze by using finite element method analysis

Abstract

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Keywords

ASJC Scopus subject areas

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