Fracture Transition Behaviors and Fracture Overall Strain of Low Carbon Steel Plate with Notch
-
- Satoh Kunihiko
- 大阪大学工学部
-
- Toyoda Masao
- 大阪大学工学部
-
- Itho Yoshiyasu
- 大阪大学工学部
-
- Kawaguchi Yoshiaki
- 住友金属工業 (株) 中央技術研究所
-
- Arimochi Kazushige
- 住友金属工業 (株) 中央技術研究所
-
- Suzuki Mitsuru
- 住友重機械工業 (株) 平塚研究所
-
- Tatara Toshiyuki
- 住友重機械工業 (株) 平塚研究所
Bibliographic Information
- Other Title
-
- 切欠をもつ鋼材の破壊遷移現象と破壊overall strainに及ぼす諸因子の影響
- キリカキ オ モツ コウザイ ノ ハカイ センイ ゲンショウ ト ハカイ ov
Search this article
Abstract
In order to ensure the welded structure of low strength steel from the unstable brittle fracture at room temperature, the unstable fracture beyond general yielhing should be prevented. In this paper, the new material criterion, named “Strain Criterion”, based on the ductility of the structural element with defects is proposed for this fracture. Experimental studies on the effects of various factors such as specimen size, crack length, loading mode and so on reveals the followings;<BR>1) Brittle-ductile transition temperature Ts of the tensile specimen with a notch is little influenced by crack length, specimen size, residual stress and local embrittlement in the vicinity of the notch tip.<BR>2) Fracture overall strain of the tensile specimen with a notch beyond general yielding can be estimated as follows :<BR>eF=δc/2πc<BR>Where δc is the critical COD and c is a half crack length.<BR>3) Low strained brittle fracture initiation temperature TL at which the fracture overall strain of the tensile specimen with a notch is equal to yielding strain of material used is the temperature that the critical COD satisfies the following equation :<BR>δc=2πcσY/E<BR>4) The testing method measured elongation in small notched tensile specimen is proposed as an evaluation method of materials based on strain criterion.
Journal
-
- Journal of the Society of Naval Architects of Japan
-
Journal of the Society of Naval Architects of Japan 1977 (142), 148-155, 1977
The Japan Society of Naval Architects and Ocean Engineers
- Tweet
Details 詳細情報について
-
- CRID
- 1390282679069138816
-
- NII Article ID
- 110003878148
-
- NII Book ID
- AN00194094
-
- ISSN
- 18842070
- 05148499
-
- NDL BIB ID
- 1919850
-
- Data Source
-
- JaLC
- NDL
- Crossref
- NDL-Digital
- CiNii Articles
-
- Abstract License Flag
- Disallowed