应力

To the later, this dissertation has been done transient dynamic analysis, calculated the stress intensity factors changing with the damp of asphalt pavement, the cycle of load action and the parameters of pavement structure.

应力强度因子最大值随荷载作用周期的变化呈倒"S"状变化，在高频和低频荷载作用时，逼近静载作用时的应力强度因子值，在一定的频率出现最大值和最小值，但应力强度因子的变化幅度不大。

In practical application item, UIC515 Code is firstly applied for analyzing the complete welded frame by finite element method to get the area with bigger nominal stress and lower fatigue behavior, and then study the hot spot stress fatigue strength evaluation approach of the typical fillet ring joint at the connection of tubular transom and side frame, the plate to plate end weld between side frame web plate and anti-yaw damper hold and the non-close ring end weld at the connection of braking unit hold and tubular transom.

在热点应力疲劳评估时，首先对焊接构架中的环向角焊缝、板间端焊缝以及非闭合环向端焊缝进行简化，得出了相应的几何应力集中系数和热点应力疲劳极限，为热点应力疲劳评估提供了依据。

The flow stress was repeated by calculated using the "single factor" flow stress formula, the metal machining process was simulated interatively with new flow stress. When simulating value was in good consistent with experimental result, the "three-high" data and flow stress data were obtained.

由&单因素&流动应力公式反复计算与模拟应变率对应的流动应力，基于新的流动应力有限元模拟迭代的进行并追求模拟值与实验结果的一致，获取能反映切削材料力学性能的&三高&数据和流动应力数据。

It is considered that pre-tension stress counteract the compression stress in welding zone generated by thermal expansion, consequently reduce the compression plastic deformation, and depress the tension stress in welding zone when cooling down, and accordingly minish the compression stresses far from the welding zone.

分析认为，预拉伸应力部分抵消了焊接区热膨胀产生的压缩应力，从而减小了压缩塑性变形，进而减小了冷却时焊接区域的拉伸应力水平，相应地远离焊缝区域的压缩应力也随之减小。

The shear stress component was separated from strain data of normal stress relieved by symmetric-combining strain detecting.

利用对称组合应变测量的方法实现剪应力与轧向残余应力的分离，分别计算出板带的轧向残余应力和剪应力分布，计算结果与板形检测结果取得一致。

The results showed that the surface layer and the bottom layer of the road pavement experience the repeated horizontal tensile and compressive stresses under cyclic loading and small residual tensile and compressive stresses build up in the surface layer and bottom layer respectively. This is probably one of the factors causing top-down or bottom-up fatigue cracking in the asphalt pavement.

结果表明在循环荷载作用下，路表和沥青层底都经受水平压应力和拉应力的重复作用，且在路表和沥青层底分别产生少量的残余拉应力和残余压应力，这有可能是造成沥青路面从上到下或从下到上疲劳开裂的原因之一。

Stress coating is adopted in order to determine the points and directions of the most main stress of the frame, resistance strain gauge method used for determining main stress value of the frame.

在模型实验应力分析中采用脆性涂料法确定模型机架最大主应力部位和主应力方向，采用电阻应变测量法确定模型机架的主应力水平。

Then, a hypothesis of "double force source" for tectonism is put forward, its main points are: the tectonism is not only the result from the action of tectonic stress, but also the result from the action of "double force source", namely, the tectonic stress and subsurface fluid force including force produced by precipitation, etc.

提出了&双力源&构造变动假设，即构造变动不仅是构造应力作用的结果，而且是构造应力与地下流体力共同作用的结果；二者共同作用因方式不同而产生不同的构造变动；在构造变动孕育与产生过程中，构造应力的作用是第一位的，地下流体力则是调制性的，只有那些能与构造应力增强过程产生力学耦合的地下流体力，才能调制与诱发出构造变动异常并促进构造变动。

The stress distribution of the semi-circular breakwaters with holes by different quantitative ice value to water level, especially the stress distribution of holes is analyzed. The effect of the stress distribution to the holes and the wall thickness are discussed. At last, the result is compared to the stress distribution by wave

应用ANSYS程序计算了不同水位不同量级冰力作用下开孔半圆型防波堤的应力分布，尤其分析了孔洞周围的应力分布；并且讨论了开孔和壁厚对于应力分布的影响；最后将分析结果与波浪力作用下的应力分布进行了比较。

Analysis on the stress status of sprayed porcelain coatings;2. Earthquakes in the Shanxi-Reservoir,Zhejiang Province:source parameters determining and description of the tectonic fault and static stress status ;3. From the result,the stress status evaluation based on geology dynamic division has important significance for the design and implementation of coal mining engineeri.

为了研究矿区岩体应力状态，利用地质动力区划方法研究了区域地质构造，建立了区域地质模型，计算了构造应力场并划分出高构造应力区和高构造应力梯度区，分析了岩体应力状态与巷道稳定性、开采沉陷、矿山压力显现等的关系。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。