The phase yield limit increases with the test temperature increasing ;

对于不同实验温度， Ni-Ti 形状记忆合金的变形行为也不同，其相变 屈服应力随着实验温度的增加而增加；

Under the instantaneous strain and yield limit calculated judgement rule about visco-elastic and visco-plastic is established .

通过计算瞬时应变的大小与 屈服 限建立粘弹性变形和粘塑性变形的判断准则。

Through the repeat impact test of coating workpieces and comparison between the changes of coating and base thickness under different impact times it is finded that under impact stress even less than yield limit material of workpieces appeared macroscopical plastic deformation .

通过对带涂层试样的多冲试验，对不同冲击次数下涂层和基体的厚度变化进行对比，发现即使在低于材料 屈服 极限的冲击应力下，材料也会产生宏观塑性变形。

During the production of casing it will give birth to residual stress . This kind of residual stress will decrease the tensile yield limit and compressive yield limit of casing greatly .

在套管的生产过程中会产生残余应力，这种残余应力将大大降低套管的拉伸 屈服 极限及压缩屈服极限，进而降低套管的抗挤强度。

The structure or components withstand the repeated loading although the stress is less than the material yield limit but it usually occurs fatigue damage in the repeated loading .

承受反复荷载作用下的结构或构件，虽然承受的应力小于其材料的 屈服 极限 强度，但在荷载的反复作用下通常发生疲劳破坏。

Its resilience is strong during shaping because titanium 's ratio of yield limit to elasticity modulus is high .

由于钛的 屈服 极限与弹性模量的比值大，使钛成型时的回弹能力大。

The results show that deformation of axle housing conforms the national requirements so rigidity is better . But stress in deboost is beyond the yield limit of material so there is lack of some strength .

分析结果表明，桥壳的变形符合国家标准要求，即刚度合格；但在紧急制动工况的应力已超出材料的 屈服 极限，即强度不满足要求。

The initial yield pressure of the cylinder is gained by analyzing the experimental data and then the yield limit is calculated .

通过对该试验数据的分析得到了圆筒的初始屈服压力，最终求得了材料的 屈服 极限。

Yield limit 、 flow stress and plastic limited load of structure are the basic data in researching the stress of pipelines and pipes . there many methods to measure them .

屈服（点） 极限、流变应力以及塑性极限载荷是管道、管件应力分析及其运行安全研究的基础数据，确定方法多种多样。

Increasing the yield limit of high strength steel and increasing the depth of submergence the form of the differential equation 's result will not only be limited with the complex number .

由于高强度钢材的 屈服 极限不断地增大，下潜深度的不断增加，弯曲微分方程解的形式将不仅限于复数解。

The most dangerous point is at the root of the first engaged tooth of a joint . Generally the biggest values of stress and strain may exceed the yield limit .

最危险点在接头的第一啮合齿的齿根处，最大应力应变值一般均超过 屈服 极限。

Mises yield condition and imitate moment yield limit with an exponent curve . Taken advantage of DKT plate element and a kind of compatible quadratic plane element including vertex rotations an ideal shell element is formed .

Mises屈服条件，并对弯矩 屈服 极限用一指数曲线模拟，利用DKT板元和一种带有角点转角自由度的相容二次平面元来组成一种理想的平壳元。

Besides because the rotating axis is flexible and affected by complex working condition it will bring high dynamic stress . If dynamic stress exceeded yield limit the rotor system would come to failure in the design stage .

而且，转子系统的转轴本身柔性大，在多种工况的影响下，会产生很大的动态应力，动态应力如果超过了 屈服 极限，那么转子系统在设计阶段就已经失效。

The main contents are follows : ( 1 ) At room temperature the mechanical properties about the elastic modulus strength and yield limit were tested for aluminum alloy in tensile experiment .

主要研究内容包括：（1）对铝合金薄板试件进行常温拉伸实验，测试试件的弹性模量、强度 极限 和 屈服 极限等力学性能。

Some ideas on improvement in prestressing process are raised according to the observation and analysis on modulus of elasticity apparent yield limit tensional strength and percentage elongation .

根据对弹性模量、非比例 强度、 抗拉强度和断裂伸长率的观察分析，提出了预应力钢丝张拉施工工艺的改进意见。

Found in the process of static analysis : for two kinds of welding methods bridge shell stress and the maximum stress is less than the material yield limit .

在静态分析的过程中发现：对于两种焊接方式，桥壳整体所受应力及最大应力均小于材料的 屈服 极限。

Under the control of special software this system can be used with a testing machine to measure elastic modulus E proportional limit σ _p a yield limit σ _ ( 0.2 ) of matrals in a fast and timely way .

该系统配合材料试验机，在专用软件控制下，可以快速实时地测定材料的弹性模量E、比例极限σp、 屈服 极限σ（0.2）。

The influencing factor on the value of critical specific pressure include ratio of section reduced height to thickness ratio friction factor half cone angle and the high temperature yield limit of metal .

断面减缩比，所需制件高径比，摩擦因子，半锥角和金属的高温 屈服 极限都是影响临界比压的重要因素。

The conclusion of analyzing model showed that the error of point cloud and surfaces has been defined in the allowable range the allowable stress of model has been measured within the yield limit range ; the deformation vibration frequency has been measured beyond the working frequency .

模型分析表明点云与曲线、曲面的误差在尺寸误差允许的范围内；模型的许用应力在 屈服 极限以下；产生形变的振动频率在工作频率之外。

The results of the static strength analysis are less than the material yield limit . The natural frequency of the frame were got in the modal analysis and the fatigue life is 75 times then got the a detailed assessment of the design about the workover truck .

静强度分析的所得到的结果均小于材料的 屈服 极限，模态分析得到车架的固有频率，计算出车架的疲劳寿命为75857次。对修井车车架的设计详细的评估。

The yield limit and tensile limit of titanium are adjacent which increase the difficulty of cold deformation .

同时钛的 屈服 极限与抗拉极限接近，增加了冷变形过程的难度。

In two and three dimensions the yield limit is reached when a certain function of all the stress components reaches a fixed value .

在二维或三维的情况下， 屈服 极限是当所有应力分量的某个函数达到某一固定值时达到的。

The stress in thread head and the root of first engaged tooth on tail beyond yield limit .

螺纹端部和尾部第1啮合齿的根部已进入 屈服 区。

The mechanical stress thermal stress and coupled stress are less than the yield limit of material .

结果表明：活塞环的机械应力、热应力、耦合应力均在材料 屈服 极限内。

Optimization of materials yield limit for reliability design

可靠性设计中材料 屈服 极限的最佳选择

In this process although the whole stress is far below the elastic limit the local stress of the gaps can exceed the yield limit due to the stress concentration .

在这个过程中，虽然整体应力远低于弹性极限，但是由于应力集中，在杂质和缺口处的局部应力也可以超过 屈服 极限。