ON DETERMINING REFERENCE STRESSES FOR HIGH TEMPERATURE THIN/THICK TUBE BENDS

机译：在确定高温薄/厚管弯曲的参考应力

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It is well known that tube/pipe bends have some degree of ovality caused during their manufacture. For the first time, based on limit analysis, the authors previously presented an explicit expression for calculation of the reference stress of tube/pipe bends with varying degrees of ovality that are subjected to uniform internal pressure. The present paper assesses this expression using an elastic-creep finite volume analysis. This is due to availability of an in-house finite volume code. It is shown that the references stresses predicted by proposed expression correlate well with those computed using elastic-creep analyses for tube/pipe bends with various degrees of ovality.

机译：众所周知，管/管弯曲在其制造过程中具有一定程度的卵形。首次基于极限分析，提交人以前介绍了用于计算管/管弯曲的参考应力的显式表达，其具有变化的内部压力均匀的椭圆形。本文使用弹性蠕变有限体积分析评估该表达。这是由于内部有限卷代码的可用性。结果表明，通过提出的表达预测的参考应力与使用具有各种椭圆度的管/管弯曲的弹性蠕变分析计算的那些相关。

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《ASME International Mechanical Engineering Congress and Exposition》|2005年||共5页
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LAWRENCE NG KY; KHOSROW ZARRABI; ABHEEK BASU; American Society of Mechanical Engineers(ASME); PVP-vol.493;
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关键词
reference stress; tube bends; ovality;

机译：参考应力;管弯;椭圆形;

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1. Temperature stresses in thick circular cylindrical shells used in nuclear reactors with and without uniform internal heat generation within the shell wall thickness [J] . G. Guerreri, L. M. Cossa Proceedings of the Institution of Mechanical Engineers, Part C. Journal of mechanical engineering science . 1998,第C7期

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2. Temperature stresses in thick circular cylindrical shells used in nuclear reactors with exponential heat generation within the shell wall thickness [J] . G. Guerreri, L. M. Cossa Proceedings of the Institution of Mechanical Engineers, Part C. Journal of mechanical engineering science . 1998,第C7期

机译：核反应堆中使用的厚圆柱壳中的温度应力，并在壳壁厚度范围内产生指数热
3. Applicability of miniature size bend specimens to determine the master curve reference temperature T_0 [J] . Kim Wallin, Tapio Planman, Matti Valo Engineering Fracture Mechanics . 2001,第11期

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4. ON DETERMINING REFERENCE STRESSES FOR HIGH TEMPERATURE THIN/THICK TUBE BENDS [C] . LAWRENCE NG KY, KHOSROW ZARRABI, ABHEEK BASU PVP-vol.493; American Society of Mechanical Engineers(ASME) International Mechanical Engineering Congress and Exposition; 20051105-11; Orlando,FL(US) . 2005

机译：确定高温薄壁/厚管弯头的参考应力
5. A BOILER TUBE PROBLEM: ELASTIC-PLASTIC BEHAVIOR OF A THICK-WALLED CYLINDER CAUSED BY SINUSOIDAL INSIDE SURFACE TEMPERATURE, INTERNAL HEAT GENERATION AND EXTERNAL HEAT FLUX. [D] . KAUPPILA, RAYMOND WILLIAM. 1968

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8. INSTANTANEOUS THERMAL STRESSES AND TEMPERATURES AND THIN WALLED CYLINDRICAL TUBES [R] . J. E. Mahlmeisttr 1951

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ON DETERMINING REFERENCE STRESSES FOR HIGH TEMPERATURE THIN/THICK TUBE BENDS

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