| 无缺陷弯管的塑性极限载荷的统一解 |
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| 引用本文： | 梁亚平,任兴民,董文胜.无缺陷弯管的塑性极限载荷的统一解[J].机械科学与技术(西安),2008,27(6):831-833. |
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| 作者姓名： | 梁亚平 任兴民 董文胜 |
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| 作者单位： | 西北工业大学工程力学系,西安710072 |
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| 摘 要： | 采用双剪统一强度理论,分析等厚度薄壁弯管在内压作用下的塑性极限载荷问题,推导出塑性极限载荷统一表达式。在该表达式中,当其系数取不同的值时,就可得到按Tresca屈服准则、双剪统一屈服准则所得的结果,并能较好逼近Mises屈服准则所得的结果。
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| 关 键 词： | 弯管 屈服准则 双剪统一强度理论 塑性极限载荷 |
A Unified Solution for Plastic Collapse Load Analysis of Undefected Pipe Elbows |
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| Liang Yaping,Ren Xingmin,Dong Wensheng.A Unified Solution for Plastic Collapse Load Analysis of Undefected Pipe Elbows[J].Mechanical Science and Technology,2008,27(6):831-833. |
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| Authors: | Liang Yaping Ren Xingmin Dong Wensheng |
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| Abstract: | We present a new method for analyzing the plastic collapse load of undefected pipe elbows under inner pressure based on twin shear unified strength theory,and the unified solutions for plastic collapse load are obtained.The solutions based on Tresca criterion,Mises criterion and twin shear unified yield criterion are special cases or linear approximations of the present result. |
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| Keywords: | pipe elbows yield criterion twin shear unified strength theory plastic collapse load |
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