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| 止裂韧度值Kca的实尺模型试验研究 | |
| 作者姓名： | Takehiro Inoue Yoshiya Yamaguchi Hiroshi Yajima ShujiAihara Hitoshi Yoshinari Kazuhiro Hirota Masanobu Toyoda Takaaki Kiyosue Tsunehisa Handa Tomoya Kawabata Tokutaka Tani |
| 作者单位： | 1. 日本钢铁公司 2. 日本海事协会 3. 长崎应用科学研究所 4. 东京大学 5. 国家海事研究所 6. 三菱重工有限公司 7. IHI船舶联合公司 8. 川崎造船公司 9. JFE钢铁公司 10. 住友金属工业有限公司 11. 神户制钢有限公司 |
| 摘 要： | 对船用钢进行长裂纹止裂特性研究表明:它们的脆性裂纹止裂能力不够。TMCP钢有足够的脆性裂纹止裂能力。对船用钢进行了两种实尺(actual-scale)模型试验,明确了脆性裂纹扩展的条件。根据试验结果提出了止裂韧度值Kca,已经归纳在"脆性裂纹止裂设计指导性文件"中。 |
| 关 键 词： | 脆性裂纹 长裂纹止裂试验 止裂韧度 |
Actual Scale Model Test Study on Brittle Crack Arrest Value Kca |
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| Takehiro Inoue,Yoshiya Yamaguchi,Hiroshi Yajima,ShujiAihara,Hitoshi Yoshinari,Kazuhiro Hirota,Masanobu Toyoda,Takaaki Kiyosue,Tsunehisa Handa,Tomoya Kawabata,Tokutaka Tani.Actual Scale Model Test Study on Brittle Crack Arrest Value Kca[J].Shanghai Shipbuilding,2011(1):72-79. | |
| Authors: | Takehiro Inoue Yoshiya Yamaguchi Hiroshi Yajima Shuji Aihara Hitoshi Yoshinari Kazuhiro Hirota Masanobu Toyoda Takaaki Kiyosue Tsunehisa Handa Tomoya Kawabata Tokutaka Tani |
| Abstract: | Studies on the long crack arrest characteristics of shipbuilding steels have reported insufficient brittle crack arrestability.TMCP steels have sufficient brittle crack arrestability but no relevant report is available.Two kinds of actual scale model tests using shipbuilding steels are conducted in order to clarify the critical conditions for brittle crack propagation.The required Kca value for arresting brittle crack is proposed based on the test results,which has been summarized and incorporated in the ＂Guidelines on Brittle Crack Arrest Design＂. |
| Keywords: | brittle crack long crack arrest test brittle crack arrest value |
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