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Characteristics of Stress Rates compared from a Viewpoint of Criteria for Incipience of Localized Deformation

Research Project

Project/Area Number 24560576
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field Structural engineering/Earthquake engineering/Maintenance management engineering
Research InstitutionTohoku University

Principal Investigator

IWAKUMA TETSUO  東北大学, 工学(系)研究科(研究院), 教授 (60120812)

Project Period (FY) 2012-04-01 – 2015-03-31
Project Status Completed (Fiscal Year 2014)
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)
Keywords変形の局所化 / 応用力学 / 増分構成則
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.

Report

(4 results)
  • 2014 Annual Research Report   Final Research Report ( PDF )
  • 2013 Research-status Report
  • 2012 Research-status Report
  • Research Products

    (2 results)

All 2014

All Journal Article (1 results) (of which Peer Reviewed: 1 results,  Open Access: 1 results,  Acknowledgement Compliant: 1 results) Presentation (1 results)

  • [Journal Article] CHOICE OF STRESS RATES IN INCREMENTAL ELASTOPLASTIC CONSTITUTIVE MODELS2014

    • Author(s)
      荒川淳平,岩熊哲夫
    • Journal Title

      Journal of Japan Society of Civil Engineers, Ser. A2 (Applied Mechanics (AM))

      Volume: 70 Issue: 2 Pages: I_365-I_374

    • DOI

      10.2208/jscejam.70.I_365

    • NAID

      130004961337

    • ISSN
      2185-4661
    • Related Report
      2014 Annual Research Report
    • Peer Reviewed / Open Access / Acknowledgement Compliant
  • [Presentation] 増分弾塑性構成則に用いる応力速度の特性の整理2014

    • Author(s)
      荒川淳平,岩熊哲夫,斉木功
    • Organizer
      土木学会東北支部
    • Place of Presentation
      八戸工業大学
    • Related Report
      2013 Research-status Report

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Published: 2013-05-31   Modified: 2019-07-29  

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