nominal stress

A new evaluation method named Nominal Stress Ratio Method is presented .

提出了评定带周向缺陷管道塑性失稳失效的一种新方法&名义应力比法，并详细说明该方法的优点和基本思路。

Safe Life Prediction of Port Crane Metal Structure Base on Nominal Stress Method

基于名义应力法的港口起重机金属结构安全使用期估算

The accuracy of the nominal stress method is suitable for the preliminary design .

采用名义应力对预应力混凝土梁进行简化计算，能达到一定的精确度，适用于预应力混凝土梁的初步设计。

Study on the Fatigue Life Prediction of Micro Connector Based on the Nominal Stress Method

基于名义应力法的微型连接器疲劳寿命预测研究

A Nominal Stress Method for the Stability of Design of Axially Compressed Bar

压杆稳定设计的名义应力法

Fatigue life based on nominal stress range Δσ is affected by different joint geometries .

接头形式对采用名义应力幅值Δσ表示的疲劳强度有较大影响；

AZ31B magnesium alloy Nominal stress approach Hot spot stress approach Fatigue evaluation ;

AZ31B镁合金；名义应力法；热点应力法；疲劳评定；

The results are approximate unless the distribution of probability density of nominal stress was known .

但要求已知名义应力的概率密度分布形式，否则只是一种粗略估计。

The method has the advantage of nominal stress method and local strain method to counteract themselves weakness .

这样，同时运用了名义摩力法和局部应力、应变法的优点，使寿命计算更合理。

Nominal stress method is applied for fatigue analysis of reinforced concrete beam strengthened with CFRP sheets .

通过引入名义应力法，对疲劳荷载作用下碳纤维布加固钢筋混凝土梁的疲劳寿命进行了分析。

Secondly , the nominal stress method which is often used to calculate structure fatigue lives is discussed in the paper .

其次，本文讨论了结构疲劳寿命计算常用的名义应力法。

Nominal Stress Ratio Method of Failure Assessment for Piping with Circumferential Surface Flaws under Plastic Collapse Failure

含周向缺陷管道的塑性失稳失效评定的名义应力比法

By applying nominal stress method and local stress-strain method , the fatigue life prediction model of rolling ring is built .

应用名义应力法和局部应力应变法，建立了滚圈疲劳寿命预测模型。

Taking 32t-31.5m common bridge crane for example , fatigue life was estimated by online nominal stress method .

以32t-31.5m通用中轨桥式起重机为例，采用在线的名义应力法进行寿命估算。

From the practical life time , the value of nominal stress corresponds with the production condition . The run is very good .

从螺栓的实际运行寿命看，螺栓的名义应力幅计算值与实际情况相符合实际运行结果良好。

Statistical parameters about fatigue life were got by nominal stress method , based on linear cumulative damage theory and p-s-N curve .

然后基于线性累积损伤理论及零件p-S-N曲线，运用名义应力法得到关于疲劳寿命的统计参数。

Considering the structural characteristics of tension link and girder confirmed the calculation method of P-S-N curve by nominal stress method .

参照名义应力法，针对卸船机拉杆和主梁的结构特点，确立了其P-S-N曲线的计算方法。

The nominal stress approach was used to estimate the fatigue life of tower crane , which belongs to high cycle fatigue .

通过查阅大量相关文献得出估算高周疲劳寿命应采用名义应力法。

EQUIVALENT NOMINAL STRESS AND DETERMINATION OF STRUCTURAL DFR UNDER VARIABLE AMPLITUDE Compared the actuality of the structure of th

当量名义应力和变幅载荷下结构DFR的确定

Nominal stress method was been adopted to predict the fatigue life of magnesium alloy wheel by the stress of peril point .

根据强度分析确定危险点的应力值，采用名义应力法对镁合金车轮进行疲劳寿命预测。

The increase in nominal stress due to live load , BC , is usually small in comparison with the dead load , OA .

活载产生的名义应力的增量BC段与恒载产生的名义应力OA段相比一般是很小的。

The nominal stress method is adopted for fatigue life analysis after the theoretical knowledge of fatigue damage is studied . ( 2 ) Establishing the finite element model .

研究疲劳损伤理论，采用名义应力法进行疲劳寿命分析。（2）建立有限元模型。

Several methods of structure fatigue life prediction , including nominal stress approach ( S N approach ) and local strain approach (ε N approach ), are presented in detail .

名义应力法（SN法）和局部应变法（εN法）的疲劳设计技术在文中得到详细说明。

Within this range of stresses , the material will return to its original dimensions once the load , hence , the nominal stress , has been removed .

在这个应力范围内，当载荷，公称应力消除之后，材料会恢复原始尺寸。

Meanwhile , for security reasons , the nominal stress of wheel is less than the stress of yield strength ; it is characterized by a high-cycle fatigue .

同时，车轮在设计时，出于安全考虑，一般其设计名义应力都小于材料的屈服极限，属于高周疲劳。

In addition , the different joint geometries lead to the difference of local stress concentration of welded joints , so nominal stress S-N curve is affected evidently .

接头型式不同导致焊接接头局部应力集中有较大差异，因而对采用名义应力幅值表示的S-N曲线有明显影响。

Based on the effective measured stress signal , the residual working life of the vane under current operating conditions was evaluated using nominal stress method , the reliable results could be acquired .

基于处理后的有效实测应变信号，运用名义应力法对该工况下的叶片剩余工作寿命进行了评估计算，获得了较为可靠的结果。

Discussing the difference among nominal stress approach , hot-spot stress approach and notch stress approach and an emphatic comparative study of nominal stress approach and hot-spot stress approach is performed .

讨论名义应力法、热点应力法和切口应力法的原理及优缺点，重点对名义应力法和热点应力法进行了比较分析。

The fatigue life of the bolster is estimated under AAR bolster load spectrum according to the nominal stress method and the Miner principle of linear cumulative damage . 5 .

基于AAR标准中摇枕载荷谱，采用名义应力法和Miner法则对摇枕的疲劳寿命进行估算。

Because the order parameter changes with the temperature , the stretch decreases with increasing temperature when the nominal stress is fixed ; the stress increases with increasing temperature when the stretch is fixed .

由于有序度会随温度变化，当工程应力不变时，伸长随着温度升高而减小；当伸长不变时，应力随着温度升高而增大。