Effect of geometric construction on residual stress distribution in designing a nuclear rotor joined by multipass narrow gap welding
Effect of geometric construction on residual stress distribution in designing a nuclear rotor joined by multipass narrow gap welding
复制标题
多道窄间隙焊接核转子设计中几何构造对残余应力分布的影响
DOI：
10.1016/j.fusengdes.2014.03.080
复制
发表时间：
2014-04
影响因子：
1.7
通讯作者：
Zhuang Dong
中科院分区：
文献类型：
--
作者：
Tan Long;Zhang Linjie;Zhang Jianxun;Zhuang Dong
本研究的目的是探讨核焊接转子设计中几何结构对热处理前后残余应力分布的影响。采用局部材料去除法测量了焊后热处理后试验管的内部残余应力。采用了三种有限元模型：实验管道模型、焊接区域存在底部凸起的模型和焊接区域存在底部凸起的两个转子盘对接焊接模型。研究结果表明，焊缝区底部凸起的存在可以降低残余应力，显著减缓内表面的应力演化。在转子盘的约束作用下，内表面区域的轴向应力为压应力;焊缝中心线处的穿壁轴向应力可视为弯曲型;内表面焊缝中心线处的环向应力和轴向应力均为压应力。几何构造对根部焊道处的应力演变的影响在第15道次沉积之后开始。
The purpose of this study is to investigate the effect of geometric construction on the distribution of residual stresses before and after heat treatment in designing a nuclear welded rotor. The local material removal method was used to measure internal residual stress of the experimental pipe after post weld heat treatment. Three finite element models were employed as follows: a model of experimental pipe, a model with a bottom protrusion existed at the weld region, and a model of two rotor discs butt-welded with a bottom protrusion at the weld region. Investigated results showed that the bottom protrusion existed at the weld region can decrease the residual stress and mitigate the stress evolution significantly on the inner surface. Under the binding effect of the rotor discs, the axial stress of inner surface region is compressive stress; the through-wall axial stress at the weld center line can be deemed to a bending type; both the hoop stress and axial stress at the weld center line on the inner surface are compressive. The impact of geometric construction on the stress evolution at the root bead begins after pass 15 deposited.
登录
查看更多内容
影响因子：
1.7
作者：
J. Caixas;J. Guirao;A. Bayon;L. Jones;Jean-Francois Arbogast;Andrea Barbensi;A. Dans;Aldo Facca;E. Fernández;José M. Fernandez;S. Iglesias;M. Jiménez;P. Jucker;G. Micó Montava;J. Ordieres;J. Pacheco;R. Paoletti;G. Sanguinetti;V. Stamos;M. Tacconelli
通讯作者：
J. Caixas;J. Guirao;A. Bayon;L. Jones;Jean-Francois Arbogast;Andrea Barbensi;A. Dans;Aldo Facca;E. Fernández;José M. Fernandez;S. Iglesias;M. Jiménez;P. Jucker;G. Micó Montava;J. Ordieres;J. Pacheco;R. Paoletti;G. Sanguinetti;V. Stamos;M. Tacconelli
DOI：
10.1016/j.msea.2007.10.011
发表时间：
2008-07
影响因子：
6.4
作者：
C. Lee;K. Chang
通讯作者：
C. Lee;K. Chang
影响因子：
8.4
作者：
Javadi, Yashar;Pirzaman, Hamed Salimi;Najafabadi, Mehdi Ahmadi
通讯作者：
Najafabadi, Mehdi Ahmadi
DOI：
10.1243/03093247jsa372
发表时间：
2008-05
期刊：
The Journal of Strain Analysis for Engineering Design
影响因子：
--
作者：
A. Yaghi;T H Hyde;A. Becker;W. Sun
通讯作者：
A. Yaghi;T H Hyde;A. Becker;W. Sun
影响因子：
6.3
作者：
A. Yaghi;T. Hyde;A. Becker;J. Williams;Wei Sun
通讯作者：
A. Yaghi;T. Hyde;A. Becker;J. Williams;Wei Sun