Measurement of Crack Tip Displacement Field in Desiccating Paste

Tatsuya Arai, Kenichi Sakaue

研究成果: Conference contribution

1 引用 (Scopus)

抜粋

Desiccation cracking is a phenomenon in which cracks are caused by shrinkage of drying paste material. In the present study, digital image correlation, DIC, is applied to measure the displacement field at the crack tip in a drying paste. In order to obtain magnified images around the crack tip, the control method for crack nucleation position and crack propagation direction is newly developed. Furthermore, stress intensity factors are evaluated by iterative procedure from the measured displacement field. The results show that the stress intensity factors are varied during crack propagation because of kinked crack path ant the fracture toughness depends on the paste thickness even the paste is composed of the same powder. In addition, it is found that the fracture toughness is independent of the crack propagation speed. The dependence of the fracture toughness on the paste thickness is noticeable results to analyze the fracture of desiccation cracking.

元の言語English
ホスト出版物のタイトルFracture, Fatigue, Failure, and Damage Evolution - Proceedings of the 2014 Annual Conference on Experimental and Applied Mechanics
出版者Springer New York LLC
ページ67-72
ページ数6
エディションVOLUME 5
ISBN(印刷物)9783319069760
DOI
出版物ステータスPublished - 2015 1 1
イベント2014 SEM Annual Conference and Exposition on Experimental and Applied Mechanics - Greenville, SC, United States
継続期間: 2014 6 22014 6 5

出版物シリーズ

名前Conference Proceedings of the Society for Experimental Mechanics Series
番号VOLUME 5
66
ISSN(印刷物)2191-5644
ISSN(電子版)2191-5652

Conference

Conference2014 SEM Annual Conference and Exposition on Experimental and Applied Mechanics
United States
Greenville, SC
期間14/6/214/6/5

ASJC Scopus subject areas

  • Engineering(all)
  • Computational Mechanics
  • Mechanical Engineering

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  • これを引用

    Arai, T., & Sakaue, K. (2015). Measurement of Crack Tip Displacement Field in Desiccating Paste. : Fracture, Fatigue, Failure, and Damage Evolution - Proceedings of the 2014 Annual Conference on Experimental and Applied Mechanics (VOLUME 5 版, pp. 67-72). (Conference Proceedings of the Society for Experimental Mechanics Series; 巻数 66, 番号 VOLUME 5). Springer New York LLC. https://doi.org/10.1007/978-3-319-06977-7_9