...;三维有限元模拟;辽河油田;裂缝 [gap=1337]Keywords ：Tectonic stress field； three-dimensional finite element simulation； Liaohe oil filed； fissure ...
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本文主要对V型连接管件内径滚压成形三维有限元模拟中的关键问题进行了研究。
The key problems of 3d FEM simulation on internal rolling process of V shaped connecting tubes were studied in this paper.
利用三维有限元模拟和动态响应试验对点焊接头疲劳裂纹萌生和扩展特性进行了研究。
Fatigue crack characteristics are investigated based on the dynamic response simulation by finite element and the dynamic response experiments for tensile-shear spot-welded specimens.
内螺纹管滚珠旋压三维有限元模拟中，铜管的网格划分和滚珠加载方式是模拟的关键问题。
The mesh of copper tubes and loading ways of the balls are the key problems during three dimensional FE simulation of ball spinning of inner grooved tubes.
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