High Strain Rate Properties of High Strength Steel Sheets

High strain rate properties of sheet steel largely depend on its strength level and strengthening mechanisms. The strain rate sensitivity of flow stress has a close relation with the hardness of a softer phase, which indicates superior strain rate sensitivity of multi-phase steels such as DP and TRI...

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Main Authors: Akihiro Uenishi, Hiroshi Yoshida, Shigeru Yonemura, Shunji Hiwatashi, Satoshi Hirose, Noriyuki Suzuki
Format: Article
Language:English
Published: Society of Automotive Engineers of Japan, Inc. 2011-10-01
Series:International Journal of Automotive Engineering
Online Access:https://www.jstage.jst.go.jp/article/jsaeijae/2/4/2_20114634/_article/-char/en
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author Akihiro Uenishi
Hiroshi Yoshida
Shigeru Yonemura
Shunji Hiwatashi
Satoshi Hirose
Noriyuki Suzuki
author_facet Akihiro Uenishi
Hiroshi Yoshida
Shigeru Yonemura
Shunji Hiwatashi
Satoshi Hirose
Noriyuki Suzuki
author_sort Akihiro Uenishi
collection DOAJ
description High strain rate properties of sheet steel largely depend on its strength level and strengthening mechanisms. The strain rate sensitivity of flow stress has a close relation with the hardness of a softer phase, which indicates superior strain rate sensitivity of multi-phase steels such as DP and TRIP steels. Simple-shear tests have revealed an increase of the flow stress with strain even for ultra high strength steel at large strains. Based on these experimental evidences and physical understandings, an appropriate constitutive model for crash simulation is proposed and discussed.
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publishDate 2011-10-01
publisher Society of Automotive Engineers of Japan, Inc.
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spelling doaj.art-197215f0b2ef4490a7fa2b9b0ede2a432023-12-28T01:35:42ZengSociety of Automotive Engineers of Japan, Inc.International Journal of Automotive Engineering2185-09922011-10-012410911310.20485/jsaeijae.2.4_109High Strain Rate Properties of High Strength Steel SheetsAkihiro Uenishi0Hiroshi Yoshida1Shigeru Yonemura2Shunji Hiwatashi3Satoshi Hirose4Noriyuki Suzuki5Nippon Steel CorporationNippon Steel CorporationNippon Steel CorporationNippon Steel CorporationNippon Steel CorporationNippon Steel CorporationHigh strain rate properties of sheet steel largely depend on its strength level and strengthening mechanisms. The strain rate sensitivity of flow stress has a close relation with the hardness of a softer phase, which indicates superior strain rate sensitivity of multi-phase steels such as DP and TRIP steels. Simple-shear tests have revealed an increase of the flow stress with strain even for ultra high strength steel at large strains. Based on these experimental evidences and physical understandings, an appropriate constitutive model for crash simulation is proposed and discussed.https://www.jstage.jst.go.jp/article/jsaeijae/2/4/2_20114634/_article/-char/en
spellingShingle Akihiro Uenishi
Hiroshi Yoshida
Shigeru Yonemura
Shunji Hiwatashi
Satoshi Hirose
Noriyuki Suzuki
High Strain Rate Properties of High Strength Steel Sheets
International Journal of Automotive Engineering
title High Strain Rate Properties of High Strength Steel Sheets
title_full High Strain Rate Properties of High Strength Steel Sheets
title_fullStr High Strain Rate Properties of High Strength Steel Sheets
title_full_unstemmed High Strain Rate Properties of High Strength Steel Sheets
title_short High Strain Rate Properties of High Strength Steel Sheets
title_sort high strain rate properties of high strength steel sheets
url https://www.jstage.jst.go.jp/article/jsaeijae/2/4/2_20114634/_article/-char/en
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AT shunjihiwatashi highstrainratepropertiesofhighstrengthsteelsheets
AT satoshihirose highstrainratepropertiesofhighstrengthsteelsheets
AT noriyukisuzuki highstrainratepropertiesofhighstrengthsteelsheets