Crack tip dislocations and its shielding effect

Masaki Tanaka, Yumi Hoshino, Alexander Hartmaier, Kenji Higashida

研究成果: 著書/レポートタイプへの貢献会議での発言

抄録

Two dimensional simulations of discrete dislocation dynamics were carried out to clarify a shielding effect due to dislocations at a crack tip. The configuration of dislocations around the crack tip was calculated under the conditions of mode I tensile load at high temperatures. The stress field around the crack tip due to dislocations was found to be compressive, accommodating mode I stress intensity at the crack tip. In order to experimentally confirm the stress accommodation, infrared photoelastic observation was also performed in a specimen pre-deformed at high temperatures. The experimental result is in good agreement with a simulated infrared photoelastic image derived from the stress field calculated.

元の言語英語
ホスト出版物のタイトルSelected, peer reviewed papers from The Sixth Pacific Rim International Conference on Advanced Materials and Processing, PRICM 6
ページ1833-1836
ページ数4
エディションPART 3
出版物ステータス出版済み - 12 1 2007
イベント6th Pacific Rim International Conference on Advanced Materials and Processing, PRICM 6 - Jeju, 大韓民国
継続期間: 11 5 200711 9 2007

出版物シリーズ

名前Materials Science Forum
番号PART 3
561-565
ISSN(印刷物)0255-5476

その他

その他6th Pacific Rim International Conference on Advanced Materials and Processing, PRICM 6
大韓民国
Jeju
期間11/5/0711/9/07

Fingerprint

Crack tips
Shielding
Infrared radiation
Loads (forces)
Temperature

All Science Journal Classification (ASJC) codes

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

これを引用

Tanaka, M., Hoshino, Y., Hartmaier, A., & Higashida, K. (2007). Crack tip dislocations and its shielding effect. : Selected, peer reviewed papers from The Sixth Pacific Rim International Conference on Advanced Materials and Processing, PRICM 6 (PART 3 版, pp. 1833-1836). (Materials Science Forum; 巻数 561-565, 番号 PART 3).

Crack tip dislocations and its shielding effect. / Tanaka, Masaki; Hoshino, Yumi; Hartmaier, Alexander; Higashida, Kenji.

Selected, peer reviewed papers from The Sixth Pacific Rim International Conference on Advanced Materials and Processing, PRICM 6. PART 3. 編 2007. p. 1833-1836 (Materials Science Forum; 巻 561-565, 番号 PART 3).

研究成果: 著書/レポートタイプへの貢献会議での発言

Tanaka, M, Hoshino, Y, Hartmaier, A & Higashida, K 2007, Crack tip dislocations and its shielding effect. : Selected, peer reviewed papers from The Sixth Pacific Rim International Conference on Advanced Materials and Processing, PRICM 6. PART 3 Edn, Materials Science Forum, 番号 PART 3, 巻. 561-565, pp. 1833-1836, 6th Pacific Rim International Conference on Advanced Materials and Processing, PRICM 6, Jeju, 大韓民国, 11/5/07.
Tanaka M, Hoshino Y, Hartmaier A, Higashida K. Crack tip dislocations and its shielding effect. : Selected, peer reviewed papers from The Sixth Pacific Rim International Conference on Advanced Materials and Processing, PRICM 6. PART 3 版 2007. p. 1833-1836. (Materials Science Forum; PART 3).
Tanaka, Masaki ; Hoshino, Yumi ; Hartmaier, Alexander ; Higashida, Kenji. / Crack tip dislocations and its shielding effect. Selected, peer reviewed papers from The Sixth Pacific Rim International Conference on Advanced Materials and Processing, PRICM 6. PART 3. 版 2007. pp. 1833-1836 (Materials Science Forum; PART 3).
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