Characteristics of Stress Rates compared from a Viewpoint of Criteria for Incipience of Localized Deformation
| Project/Area Number |
24560576
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Multi-year Fund |
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| Section | 一般 |
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| Research Field |
Structural engineering/Earthquake engineering/Maintenance management engineering
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| Research Institution | Tohoku University |
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Principal Investigator |
IWAKUMA TETSUO 東北大学, 工学(系)研究科(研究院), 教授 (60120812)
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| Project Period (FY) |
2012-04-01 – 2015-03-31
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| Project Status |
Completed (Fiscal Year 2014)
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| Budget Amount *help |
¥5,460,000 (Direct Cost: ¥4,200,000、Indirect Cost: ¥1,260,000)
Fiscal Year 2014: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
Fiscal Year 2013: ¥3,120,000 (Direct Cost: ¥2,400,000、Indirect Cost: ¥720,000)
Fiscal Year 2012: ¥520,000 (Direct Cost: ¥400,000、Indirect Cost: ¥120,000)
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| Keywords | 変形の局所化 / 応用力学 / 増分構成則 |
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| Outline of Final Research Achievements |
Usage of stress rates with deformation rate for hypoelasticity was examined through analytical approaches, such as simple shearing in elasticity and plastic localization of deformation. Especially, in the latter problem, the stress level for incipience of the localization was predicted in the practical order under plane-strain condition, and different directions of localization were obtained in tension and compression as has been observed in many experiments. The advantage of using the Truesdell stress rate for hypoelasticity has been shown from a theoretical point of view.
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Report
(4 results)
Research Products
(2 results)
