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"Fracture Prediction Method"
Abstract: The possibility of breaking of a material is quantitatively evaluated by the comparison of the relationship between data obtained by a numerical analysis using a finite-element technique and a breaking limit stress line, using a breaking limit stress line, which has been provided by converting the hole expansion ratio to stress, as a criterion for breaking. According to the above construction, in determining a breaking limit of an elongation flange part in a thin plate in a course including one or more deformation process change, the breaking limit line can be determined easily and efficiently to predict breaking with high accuracy and thus to evaluate the possibility of breaking upon pressing or collision.
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Notices, Deadlines & Correspondence
Notices, Deadlines & Correspondence
Patent Information
Application #
Filing Date
14 August 2008
Publication Number
17/2010
Publication Type
INA
Invention Field
MECHANICAL ENGINEERING
Status
Email
Parent Application
Patent Number
Legal Status
Grant Date
2017-05-05
Renewal Date
Applicants
NIPPON STEEL CORPORATION
6-3, OTEMACHI 2-CHOME, CHIYODA-KU, TOKYO 100-8071, JAPAN
Inventors
1. SHIGERU YONEMURA
C/O NIPPON STEEL CORPORATION, KIMITSU WORKS, 1 KIMITSU, KIMITSU-SHI, CHIBA 299-1141, JAPAN
2. AKIHIRO UENISHI
C/O NIPPON STEEL CORPORATION, KIMITSU WORKS, 1 KIMITSU, KIMITSU-SHI, CHIBA 299-1141, JAPAN
3. SHUNJI HIWATASHI
C/O NIPPON STEEL CORPORATION, TECHNICAL DEVELOPMENT BUREAU, 20-1, SHINTOMI, FUTTSU-SHI, CHIBA 293-8511, JAPAN
4. HIROSHI YOSHIDA
C/O NIPPON STEEL CORPORATION, TECHNICAL DEVELOPMENT BUREAU, 20-1, SHINTOMI, FUTTSU-SHI, CHIBA 293-8511, JAPAN
5. TOHRU YOSHIDA
C/O NIPPON STEEL CORPORATION, TECHNICAL DEVELOPMENT BUREAU, 20-1, SHINTOMI, FUTTSU-SHI, CHIBA 293-8511, JAPAN
Specification
Documents
Application Documents
| # | Name | Date |
|---|---|---|
| 1 | 6968-delnp-2008-Form-3-(27-06-2011).pdf | 2011-06-27 |
| 1 | 6968-DELNP-2008-RELEVANT DOCUMENTS [30-08-2023(online)].pdf | 2023-08-30 |
| 2 | 6968-delnp-2008-Correspondence Others-(27-06-2011).pdf | 2011-06-27 |
| 2 | 6968-DELNP-2008-RELEVANT DOCUMENTS [24-09-2022(online)].pdf | 2022-09-24 |
| 3 | 6968-DELNP-2008-RELEVANT DOCUMENTS [26-07-2021(online)].pdf | 2021-07-26 |
| 3 | 6968-delnp-2008-gpa.pdf | 2011-08-21 |
| 4 | 6968-DELNP-2008-RELEVANT DOCUMENTS [21-02-2020(online)].pdf | 2020-02-21 |
| 4 | 6968-delnp-2008-form-5.pdf | 2011-08-21 |
| 5 | 6968-delnp-2008-form-3.pdf | 2011-08-21 |
| 5 | 283156-Correspondence-120719.pdf | 2019-07-20 |
| 6 | 6968-delnp-2008-form-2.pdf | 2011-08-21 |
| 6 | 283156-OTHERS-120719.pdf | 2019-07-20 |
| 7 | 6968-delnp-2008-form-18.pdf | 2011-08-21 |
| 7 | 283156-Power of Attorney-120719.pdf | 2019-07-20 |
| 8 | 6968-DELNP-2008-PROOF OF ALTERATION [11-07-2019(online)].pdf | 2019-07-11 |
| 8 | 6968-delnp-2008-form-1.pdf | 2011-08-21 |
| 9 | 6968-delnp-2008-drawings.pdf | 2011-08-21 |
| 9 | 6968-DELNP-2008-RELEVANT DOCUMENTS [22-02-2019(online)].pdf | 2019-02-22 |
| 10 | 6968-delnp-2008-description (complete).pdf | 2011-08-21 |
| 10 | 6968-DELNP-2008-RELEVANT DOCUMENTS [17-02-2018(online)].pdf | 2018-02-17 |
| 11 | 6968-delnp-2008-correspondence others.pdf | 2011-08-21 |
| 11 | 6968-DELNP-2008_EXAMREPORT.pdf | 2016-06-30 |
| 12 | 6968-delnp-2008-claims.pdf | 2011-08-21 |
| 12 | Other Patent Document [06-06-2016(online)].pdf | 2016-06-06 |
| 13 | 6968-delnp-2008-abstract.pdf | 2011-08-21 |
| 13 | 6968-delnp-2008-Correspondence Others-(03-12-2015).pdf | 2015-12-03 |
| 14 | 6968-delnp-2008-Copy Petition-137-(23-04-2015).pdf | 2015-04-23 |
| 14 | 6968-DELNP-2008-GPA-(12-07-2013).pdf | 2013-07-12 |
| 15 | 6968-delnp-2008-Correspondence Others-(23-04-2015).pdf | 2015-04-23 |
| 15 | 6968-DELNP-2008-Form-2-(12-07-2013).pdf | 2013-07-12 |
| 16 | 6968-DELNP-2008-Form-1-(12-07-2013).pdf | 2013-07-12 |
| 16 | 6968-delnp-2008-Form-1-(23-04-2015).pdf | 2015-04-23 |
| 17 | 6968-delnp-2008-GPA-(23-04-2015).pdf | 2015-04-23 |
| 17 | 6968-DELNP-2008-Correspondence-Others-(12-07-2013).pdf | 2013-07-12 |
| 18 | Abstract_as filed.pdf | 2015-04-21 |
| 18 | Sec 8(2)_as filed.pdf | 2015-04-21 |
| 19 | Claims_as filed.pdf | 2015-04-21 |
| 19 | Petition under rule 137_Form 3.pdf | 2015-04-21 |
| 20 | Contrl ltr & othrs._as filed.pdf | 2015-04-21 |
| 20 | Petition under rule 137 _Proof of Right.pdf | 2015-04-21 |
| 21 | Drawings_as filed.pdf | 2015-04-21 |
| 21 | Form 2 & spec page_as filed.pdf | 2015-04-21 |
| 22 | Drawings_as filed.pdf | 2015-04-21 |
| 22 | Form 2 & spec page_as filed.pdf | 2015-04-21 |
| 23 | Contrl ltr & othrs._as filed.pdf | 2015-04-21 |
| 23 | Petition under rule 137 _Proof of Right.pdf | 2015-04-21 |
| 24 | Petition under rule 137_Form 3.pdf | 2015-04-21 |
| 24 | Claims_as filed.pdf | 2015-04-21 |
| 25 | Abstract_as filed.pdf | 2015-04-21 |
| 25 | Sec 8(2)_as filed.pdf | 2015-04-21 |
| 26 | 6968-DELNP-2008-Correspondence-Others-(12-07-2013).pdf | 2013-07-12 |
| 26 | 6968-delnp-2008-GPA-(23-04-2015).pdf | 2015-04-23 |
| 27 | 6968-DELNP-2008-Form-1-(12-07-2013).pdf | 2013-07-12 |
| 27 | 6968-delnp-2008-Form-1-(23-04-2015).pdf | 2015-04-23 |
| 28 | 6968-delnp-2008-Correspondence Others-(23-04-2015).pdf | 2015-04-23 |
| 28 | 6968-DELNP-2008-Form-2-(12-07-2013).pdf | 2013-07-12 |
| 29 | 6968-delnp-2008-Copy Petition-137-(23-04-2015).pdf | 2015-04-23 |
| 29 | 6968-DELNP-2008-GPA-(12-07-2013).pdf | 2013-07-12 |
| 30 | 6968-delnp-2008-abstract.pdf | 2011-08-21 |
| 30 | 6968-delnp-2008-Correspondence Others-(03-12-2015).pdf | 2015-12-03 |
| 31 | 6968-delnp-2008-claims.pdf | 2011-08-21 |
| 31 | Other Patent Document [06-06-2016(online)].pdf | 2016-06-06 |
| 32 | 6968-delnp-2008-correspondence others.pdf | 2011-08-21 |
| 32 | 6968-DELNP-2008_EXAMREPORT.pdf | 2016-06-30 |
| 33 | 6968-delnp-2008-description (complete).pdf | 2011-08-21 |
| 33 | 6968-DELNP-2008-RELEVANT DOCUMENTS [17-02-2018(online)].pdf | 2018-02-17 |
| 34 | 6968-delnp-2008-drawings.pdf | 2011-08-21 |
| 34 | 6968-DELNP-2008-RELEVANT DOCUMENTS [22-02-2019(online)].pdf | 2019-02-22 |
| 35 | 6968-delnp-2008-form-1.pdf | 2011-08-21 |
| 35 | 6968-DELNP-2008-PROOF OF ALTERATION [11-07-2019(online)].pdf | 2019-07-11 |
| 36 | 6968-delnp-2008-form-18.pdf | 2011-08-21 |
| 36 | 283156-Power of Attorney-120719.pdf | 2019-07-20 |
| 37 | 6968-delnp-2008-form-2.pdf | 2011-08-21 |
| 37 | 283156-OTHERS-120719.pdf | 2019-07-20 |
| 38 | 6968-delnp-2008-form-3.pdf | 2011-08-21 |
| 38 | 283156-Correspondence-120719.pdf | 2019-07-20 |
| 39 | 6968-DELNP-2008-RELEVANT DOCUMENTS [21-02-2020(online)].pdf | 2020-02-21 |
| 39 | 6968-delnp-2008-form-5.pdf | 2011-08-21 |
| 40 | 6968-DELNP-2008-RELEVANT DOCUMENTS [26-07-2021(online)].pdf | 2021-07-26 |
| 40 | 6968-delnp-2008-gpa.pdf | 2011-08-21 |
| 41 | 6968-DELNP-2008-RELEVANT DOCUMENTS [24-09-2022(online)].pdf | 2022-09-24 |
| 41 | 6968-delnp-2008-Correspondence Others-(27-06-2011).pdf | 2011-06-27 |
| 42 | 6968-delnp-2008-Form-3-(27-06-2011).pdf | 2011-06-27 |
| 42 | 6968-DELNP-2008-RELEVANT DOCUMENTS [30-08-2023(online)].pdf | 2023-08-30 |