| 摘要: |
| 主要研究侧槽试样与平板试样裂纹扩展速率之间的关系,并建立了两者关系的效学表达式。利用四种材料、六种试样形式,做了五组包括母材和焊接接头的侧槽与平板da/dN对比试验,验证了所提出的关系表达式,该关系式的建立,为焊接结构安全评定和寿命估算奠定了基础。 |
| 关键词: 侧槽试样 平板试样 裂纹扩展速率 |
| DOI： |
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| Relationship of da/dN between lateral notch specimen and plane plate specimen |
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Zhang Baochang, Jiao We, Ji Shaoxin
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Harbin Research Institute of Welding
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| Abstract: |
| The relationship of crack growth rate between lateral notch specimen and plane plate specimen was studied in this paper. A formula for the relationship was established. The formula was verified by five groups of da/dN comparison test between the lateral notch specimen and the plane plate specimen, including base metal and welded joints, with four types of material and six forms of specimens. This study laid the foundation for the prediction of safety and life of welded structures. |
| Key words: lateral notch specimen plane plate specimen crack growth rate |
