发明名称 |
METHOD FOR EVALUATING LOCAL BUCKLING CAPABILITY OF STEEL PIPE, METHOD FOR DESIGNING STEEL PIPE, PROCESS FOR PRODUCING STEEL PIPE, AND STEEL PIPE |
摘要 |
A method for evaluating local buckling performance of a steel pipe that can evaluate whether a yield-plateau model steel pipe can be applied to a usage that requires high local buckling performance such as pipelines is provided. A specific solving means includes a first step of obtaining a stress-strain relationship of a material having a yield plateau in the stress-strain relationship; a second step of determining the comparison of a starting strain of strain-hardening in the stress-strain relationship obtained in the first step and a critical strain of the steel pipe; and a third step of evaluating that the steel pipe has a possibility of being applied to a structure that requires plastic design when the critical strain is determined to be larger than the starting strain of strain-hardening in the second step and evaluating that the steel pipe has no possibility of being applied to a structure that requires plastic design when the critical strain is determined to be not larger than the starting strain of strain-hardening in the second step. |
申请公布号 |
CA2599755(A1) |
申请公布日期 |
2007.06.21 |
申请号 |
CA20052599755 |
申请日期 |
2005.12.15 |
申请人 |
JFE STEEL CORPORATION |
发明人 |
SUZUKI, NOBUHISA;MASAMURA, KATSUMI |
分类号 |
G01N3/08;F16L9/02 |
主分类号 |
G01N3/08 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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