2022 Fiscal Year Final Research Report
Measurement of strain field in porous materials using X-ray CT and analysis of heat & moisture transfer, stress and strain
Project/Area Number |
20K20436
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Project/Area Number (Other) |
19H05511 (2019)
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Research Category |
Grant-in-Aid for Challenging Research (Pioneering)
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Allocation Type | Multi-year Fund (2020) Single-year Grants (2019) |
Review Section |
Medium-sized Section 23:Architecture, building engineering, and related fields
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Research Institution | Kindai University |
Principal Investigator |
Abuku Masaru 近畿大学, 建築学部, 教授 (20581739)
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Co-Investigator(Kenkyū-buntansha) |
伊庭 千恵美 京都大学, 工学研究科, 准教授 (10462342)
麓 隆行 近畿大学, 理工学部, 教授 (30315981)
脇谷 草一郎 独立行政法人国立文化財機構奈良文化財研究所, 埋蔵文化財センター, 室長 (80416411)
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Project Period (FY) |
2019-06-28 – 2023-03-31
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Keywords | X線CT / デジタル画像相関 / 変形 / ひずみ / 有限要素法 / ポロメカニクス / 凍結 / 耐久性 |
Outline of Final Research Achievements |
We conducted numerical analyses in which heat & moisture transfer and deformation in porous materials are simultaneously simulated, in order to predict and evaluate the durability of porous building materials suffering from deterioration due to freeze-thaw and so on. For this purpose, an analysis solver was developed based on poromechanics and a finite element analysis. Next, a useful tool was developed to enable linkage between a generic finite element modelling software and the analysis solver. Finally, we conducted laboratory experiments to verify results of numerical analyses. In the experiments, we clarified the three-dimensional structure of the material and the strain field in the material.
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Free Research Field |
建築環境工学・建築物理
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Academic Significance and Societal Importance of the Research Achievements |
本研究は、水分の凍結融解や乾湿の繰り返しなどにより劣化する多孔質な建築材料(凝灰岩・砂岩・レンガなど)の耐久性の予測・評価方法を、温度や含水(氷)率などの変化で評価する従来の方法から、材料の劣化(亀裂・剥離など)を予測する、より高度な方法に発展させた。
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