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METHOD FOR EVALUATING LOCAL BUCKLING CAPABILITY OF STEEL PIPE, METHOD FOR DESIGNING STEEL PIPE, PROCESS FOR PRODUCING STEEL PIPE, AND STEEL PIPE
METHOD FOR EVALUATING LOCAL BUCKLING CAPABILITY OF STEEL PIPE, METHOD FOR DESIGNING STEEL PIPE, PROCESS FOR PRODUCING STEEL PIPE, AND STEEL PIPE
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机译:钢管的局部屈曲能力的评价方法,钢管的设计方法,钢管的制造方法以及钢管
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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.
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