交变应力

PEEK树脂的韧性好，对交变应力的优良耐疲劳性是所有塑料中最出众的，可与合金材料媲美；

PEEK resin toughness , good to excellent alternating stress resistance to fatigue sex is the most outstanding all plastic , alloy material with comparable ;

进一步增加调制周期，两调制层之间产生非共格界面，破坏了薄膜中的交变应力场，薄膜的硬度和弹性模量也随之降低。

Further increasing modulation period leads to the emerge of incoherent interface and the destroy of alternating stress field , accompanied by the decreased mechanical properties .

Cu／Ni多层膜中交变应力场对可动位错的制约

Constrain of alternating stress field on glide dislocations in cu / ni multilayers

本文研究了聚丙烯腈-丁二烯-苯乙烯（ABS）在对称循环交变应力作用下的应力疲劳性能及缺口敏感性。

The stress fatigue behavior and notch sensitivity of Acrylic nitrile - Butadiene-Styrene ( ABS ) under cyclic loading are studied in this paper .

实验结果表明，在实验所涉及的频率范围内，交变应力的频率对聚合物ABS的有限疲劳寿命的疲劳强度没有影响。

It is show by experimental results that the fatigue Strength of finite life of polymer ABS is not affected by the frequency of the cyclic loading .

复合交变应力下GOUGH公式的研究

Study on the Gough formula applied under alternating compound stress

机械特性聚醚醚酮PEEK具有刚性和柔性，特别是对交变应力下的抗疲劳性非常突出，可与合金材料相媲美。

Mechanical properties PEEK PEEK has rigid and flexible , especially for alternating stress of fatigue resistance is very outstanding , but and alloy material comparable .

由于存在晶格错配，在共格界面作用下，VN和（Ti，Al）N调制层分别受到拉、压应力，在多层膜中产生以调制周期为周期的交变应力场。

An alternating strain field which has the same period with the modulation period was formed because of the lattice mismatch between ( Ti , Al ) N and VN layers during the epitaxial growth .

对于弯曲微动疲劳，交变应力对寿命的影响十分显著，应力水平越高，微动疲劳寿命越低，弯曲微动疲劳的S-N曲线呈C曲线型。

The life of bending fretting fatigue was significantly influenced by the alternating stresses . The higher stress level was , the lower fatigue life occurred . The S-N curves of bending fretting fatigue appeared shapes of C type .

结果表明12Cr1MoV钢疲劳蠕变断裂寿命随交变应力变化呈反C型特殊规律，其交互作用曲线既不同于纯疲劳的S-N曲线，又不同于纯蠕变断裂曲线，而是两者的综合。

The results showed the curve of interaction occured in opposite " C " shape . It was different from that of the normal S-N curve and creep curve . And could be envisaged as a combination of pure fatigue and pure creep curves .

在第一部分应力分析的基础上，计算了实验工况下130t／h锅炉汽包危险部位的交变应力幅值，按Palm－gren－Miner线性累积损伤理论确定其低周疲劳寿命。

In this paper , on the basis of stress analysis , the alternating stress range of unsafe positions was calculated on actual operating conditions , and the low cycle fatigue life of this 130t / h boiler drum was determined by the Palmgren Miner 's linear cumulative damage rule .

广州港的一台KRUPP岸桥，其小车架金属结构由于使用时间长，承载大，运行过程中承受复杂的交变应力而产生了塑性变形，引发了小车运行机构的多种故障。

The trolley frame of a KRUPP quayside container gantry crane employed in Guangzhou Port , which was resulted to the plastic deformation due to the long time employment and heavy loaded with the complicated interchanging stresses in running , made divers faults in the trolley moving gear .

不稳定交变应力作用下的疲劳可靠度

The Fatigue Reliability for the Stuctures Subjected to Unsteady Periodic Stresses

石化管道无交变应力泵头清洗机

Cleaning Machine with Pressure Block without Alternate Stress for Petrochemical Pipe

熟料窑滚圈在交变应力的作用下易发生开裂。

The rolling ring will crack under the alternative - stress .

因交变应力而使非线性缓冲包装系统失效的原因有两种：第一种是因为应力的幅值超过了缓冲包装系统的许可应力；

There are two causes that make non-linear packaging cushioning system fail .

其磨损机理为犁削和交变应力作用下疲劳剥落。

Wear mechanism are mainly plough-grinding and fatigue flaking under alternating strain .

金属棒料在旋弯交变应力作用下会发生疲劳断裂。

Metal bar wound be fractured under the rotating-bending fatigue alternating stress .

体外细胞培养装置评估交变应力对内皮细胞的影响

Effect of oscillation shear stress on endothelial cells in cell culture system

叶片裂纹是疲劳裂纹，主要由交变应力引起。

They are fatigue cracks which is mainly caused by alternating stress .

但在交变应力下双程记忆效应严重破坏；

Under alternating stress , the two-way shape memory effect is heavily destroyed .

多层板弹簧在工作中受到长期交变应力的作用。

Multi-layer leaf spring is exposed to long-term alternative stress during its operation .

复合交变应力条件下的导线疲劳试验方法

Fatigue Test Method of Conductor under Compound Alternating Stress

承受交变应力的压力容器的疲劳计算和结构设计

The structure design and fatigue calculation for pressure vessels which enduring cycling stress

热交变应力下热模钢的热疲劳行为

Thermal Fatigue Of Hot-Work Die Steel Under Alternating Stress

工作时受交变应力的作用，高速线材轧辊断裂问题时有发生。

The rupture often happens when the high-speed wire roller endures exchanging stress .

非对称交变应力下疲劳强度条件的探讨

Study of Fatigue Strength Condition for Non Symmetrical Circulation

调整螺母模具内孔热交变应力峰值的实验分析

The Experimental analysis of the Thermal Alternating Peak Stress in Adjustable Nut Mould

而交变应力集中是疲劳破坏的一个关键因素。

Th e concentration of alternate stress is a key factor of fatigue destruction .

用特制的强声波发生装置产生频率和强度可调的交变应力场，研究不同频率和强度的交变应力作用后烟草细胞周期的变化。

The field of alternative stress was generated through a strong sound filed system .