Estimation of ultimate pressure for a pipe with a dent

被引:0
|
作者
Orynyak, I.V. [1 ]
Shlapak, L.S. [1 ]
机构
[1] Inst. Problem Prochnosti, NAN Ukrainy, Kiev, Ukraine
来源
Problemy Prochnosti | 2001年 / 05期
关键词
Defects - Ductility - Estimation - Fracture - Mathematical models - Plasticity - Pressure - Strength of materials;
D O I
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中图分类号
学科分类号
摘要
The topicality of the determination of ultimate load of ductile fracture for defects such as dents in pipelines is noted. An idealized model of ultimate plastic state of a pipe with a dent infinite in longitudinal direction is suggested. To assess the effect of the finite length of a dent a simplified model for a rectangular dent is proposed. Practical equations for calculating the remaining strength are derived and analyzed in the absence of axial stresses.
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页码:101 / 110
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