Tensile Instability in Thin-Walled Tubes
Tensile Instability in Thin-Walled Tubes
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DOI：
10.1243/jmes_jour_1962_004_034_02
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发表时间：
1962-09
期刊：
影响因子：
--
通讯作者：
P. Mellor
中科院分区：
文献类型：
--
作者：
P. Mellor
给出了薄壁管在内压和独立轴向载荷作用下失稳的条件。分析表明，当环向应力与轴向应力之比为1/2时，材料的延性最大。当材料为承受内压的封闭管形时，其延展性最小。在本研究的框架内讨论了术语“抗拉强度”和"延伸率“。
An analytical solution giving conditions at instability of a thin-walled tube subjected to internal pressure and independent axial load is presented. An attempt is made to explain the physical reasons for the occurrence of an instability.The analysis shows that a given material has greatest ductility when the ratio of the hoop stress to axial stress has the value one half. The material has least ductility when it is in the form of a closed-ended tube subjected to internal pressure.The terms ‘tensile strength’ and ‘percentage elongation’ are discussed within the framework of the present investigation.