Identifying elasto-plastic material properties by strain measurement with digital image correlation
Project/Area Number |
26420024
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Research Category |
Grant-in-Aid for Scientific Research (C)
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Allocation Type | Multi-year Fund |
Section | 一般 |
Research Field |
Materials/Mechanics of materials
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Research Institution | Aoyama Gakuin University |
Principal Investigator |
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Project Period (FY) |
2014-04-01 – 2017-03-31
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Project Status |
Completed (Fiscal Year 2016)
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Budget Amount *help |
¥4,680,000 (Direct Cost: ¥3,600,000、Indirect Cost: ¥1,080,000)
Fiscal Year 2016: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2015: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2014: ¥2,470,000 (Direct Cost: ¥1,900,000、Indirect Cost: ¥570,000)
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Keywords | 逆問題 / 材料特性 / 弾塑性 / 画像相関法 / ひずみ測定 |
Outline of Final Research Achievements |
A method for inversely identifying elasto-plastic material properties from displacement fields measured by global digital image correlation. In order to avoid the accumulation of measurement errors, total strain theory is used as a constitutive equation. A peicewise virtual fields method with a finite element mesh is sued for the implementation of the inverse analysis. The effectiveness of the proposed method is demonstrated by identifying the material proper-ties of a pure aluminum specimen from the displacement fields. Results show that the stress-strain relation after yielding can be evaluated from a single set of displacement fields under a single load but better results are obtained when multiple displacement fields under various loads are used as input data.
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Report
(4 results)
Research Products
(7 results)
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[Journal Article] Identification of Elasto-plastic Material Properties with Full-field Surface Displacement Measurements2014
Author(s)
Jinno, K., Arikawa, S., Yoneyama, S., Watanabe, Y., Asai, T., Shiokawa, K. and Yamashita, M.
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Journal Title
Journal of the Japanese Society for Experimental Mechanics
Volume: 14
Issue: Special_Issue
Pages: s147-s152
DOI
NAID
ISSN
1346-4930, 1884-4219
Related Report
Peer Reviewed / Open Access
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