The fatigue resistance of the butt welds can be improved by means of removing the weld reinforcement and designing the weld in the maximum shear stress plane.
去除焊缝余高或将焊缝设计在最大剪应力平面内可明显改善对焊接头的疲劳性能。
The concept of tectonic stress plane (TSP) is defined as an ideal curved plane drawn by the locations with different depths where the influence of non-tectonic stress disappears.
国内外地应力实测资料证实，地表附近构造应力受多种影响因素的干扰，经常叠加着非构造应力（如地形等引起的应力）。
Then last week, other stress tests on an airframe showed that the plane needs strengthening at 18 points on either side of the fuselage just above the area where the wing attaches.
就在上周，机身结构的其他应力测试显示，就在机翼连接的面之上的机身每侧需要强化18个点。
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