stress surface

Because hot work dies suffer from various physical and chemical actions, such as wear, thermal fatigue, erosion, stress corrosion and surface thermal wielding in service, their service life are not long.

热作模具在使用过程中承受着磨损、热疲劳、冲蚀、应力腐蚀、表面热焊合等物理、化学作用，因而其使用寿命较低。

We call this surface the stress quadric.

我们称这个曲面为应力二次曲面.

The small pits that form on the surface act as stress raisers.

在表面形成的小凹坑起到应力增高源的作用.

Thus, under the same bolt tension, reduce narrow smooth surface after the compressive stress will increase.

这样, 在螺栓张力相同的情况下, 缩小后的窄光滑面的压紧应力就会增大.

There is no longitudinal surface cracking in the course of pickling after the stress reliving annealing.

对冲压后的磁屏采用消除应力退火,随后再酸洗,未发生表面轴向开裂.

The direct reasons that result in visible damage are the stress explosion in the bulk and the thermal melting, thermal etching and plasma emission on the surface.

造成宏观破坏的原因在体内是应力炸裂，在表面是热烧蚀热熔化和等离子体抛射。

Calculation of Thermal Stress Intensity Factor for Semi-elliptical Surface Cracks of Thin Pipeline

薄壁管道半椭圆表面裂纹热应力强度因子计算

By using the numerical Laplace inversion method, the variations of the temperature distribution along the crack surface and extended line and transient thermal stress intensity factors are presented.

利用Laplace数值反演方法，给出了裂纹面及延长线上的温度分布及动态热应力强度因子随时间变化的规律。

The remote bending stress at the plate surface was measured.

板表面处的远场弯曲应力已被测出.

In the shape analysis of stress surface contour of 3D footprint, the consistency of datum plane cannot be strictly controlled, so a descriptor insensitive to perspective transform is needed.

在立体足迹的重压面边界围线的形状分类和识别中，由于不能严格控制基准面方向的一致性，必须采取对透视变换不敏感的描述方法。

In this paper, 3 types of surface modes and 2 types of center modes and their practical applications were proposed and analyzed for the thermal stress analysis during quenching for no phase transformation alloy.

建立并深入分析了3种表层淬火热应力模型和2种内部淬火热应力模型及其实际应用。