大部分形状记忆合金只能“循环”(或称改变形态)有限次数，之后材料就会疲劳了。
Most shape memory alloys can only "cycle" (or change form) a limited number of times before the material gives out.
疲劳破坏是材料在变形过程中产生的裂纹积累。
Fatigue failure results from accumulation of cracks of deformation pro - cess of material.
因蠕变加载作用时间缩短和疲劳载荷变化更频繁，导致在较小的应变下结束普弹应变阶段并进入延迟弹性变形的平台应变阶段。
The shortness of creep loading time and the faster frequency of fatigue load change induce general elastic strain stage to end and delayed elastic strain platform stage to begin under shorter strain.
至少有60座桥上出现的疲劳裂纹是由于小间隙处的面外变形引起的。
At least 60 bridge sites developed fatigue cracks as a result of out-of-plane distortion in a small gap.
柔性基层结构由于基层结构变形大，在重载交通条件下，路面面层短期内在重复荷载作用下易产生疲劳破坏，导致路面结构层的功能丧失。
Because of the large deformation of the soft base structure, the pavement would have fatigue failure under heavy load to make the road losing its function.
新材料不仅具有耐油性，在耐高温性、耐疲劳性和抗永久变形性方面也有较大幅度的提高。
The new material is not only oil resistant, but also has fairly great improvement in performance of high temperature resistance, fatigue resistance and permanent deformation resistance.
结果表明，循环频率的增加会导致合金高温疲劳寿命的下降及不同的变形机制。
The results show that the increase of cyclic frequency would decrease high temperature fatigue lifetime of the alloy and result in different deformation mechanism.
分析其失效原因为铅合金在外力作用下，产生塑性变形引起的低周疲劳，造成断裂。
Through analysis, the failure reason was confirmed as that the low cycle fatigue caused by plastic deformation occurred in the lead alloy, thus the fracture occurred.
叉车货叉失效方式主要表现为塑性变形超差，脆性断裂和早期疲劳断裂。
Fork failure of a forklift truck mainly takes a form of plastic deformation exceeding allowable limit, fragile breakage and early stage fatigue breakage.
结果表明，高能喷丸后其表层组织发生严重塑性变形并实现组织纳米化，是提高弯曲疲劳寿命的主要原因。
The result indicates that the improvement of the fatigue limit is due to the nano-crystallization and severe plastic deformation in the surface layer induced by high-energy shot peening.
结果表明，应力幅值的增加会导致合金高温疲劳寿命的下降及使变形机制改变。
The results show that the increase of stress range value would result in decreasing the high temperature fatigue lifetime of the alloy and the difference of the deformation mechanism.
研究进一步表明，材料变形的难易程度又与变温循环过程，热疲劳试样拉伸应力的增加和材料屈服强度的降低有关。
Moreover, it is revealed that the deformation resistance in the thermal cycle process is related to the increase of its tensile stress and the decrease of yield strength.
试着感觉一下在疲劳的时候，攀岩技术是如何变形的，然后无论如何尽力保持好的攀爬状态。
Try to notice how climbing technique changes as fatigue builds, and really work to maintain good climbing form no matter what.
表面复合材料的磨损机理主要是反复塑性变形和疲劳剥落。
The wear mechanism of composites is mainly repeating toughness deform and fatigue flaking off.
结果表明，疲劳裂纹是在残余拉应力和循环压应力作用下萌生和扩展的，压塑性变形是裂纹萌生和扩展的必要条件。
The result shows: the local residual tensile stress and cyclic compressive loading thrust fatigue crack initiation and propagation in the size of compressive plastic zone.
本文主要介绍中碳合金结构钢经整体塑性变形、热处理后再进行表面冷变形工艺是提高材料疲劳强度的有效途径。
This paper mainly presents that constructional mid-carbon alloy steel, after bulk moulding deformation, heat treatment and cold surface deformation can raise fatigue strength of materials effectively.
连杆的主要损坏形式是疲劳断裂和过量变形。
Linkage is the main form of damage and excessive fatigue fracture deformation.
如对变形、稳定性、抗疲劳等方面都可能产生不利的作用。
If the deformation, stability, fatigue resistance and other aspects may produce adverse effect.
文章较详细地阐述了这种新颖结构在制造和使用过程中在应变、变形、固化、损伤、疲劳等检测方面的具体应用及发展趋势。
This paper puts emphasis on measurement and monitoring of strain, deformation, curing, damage and fatigue, which are quite suitable for smart composite structures in fabri…
在三维流场数值计算的基础上对钣金型液力变矩器的轴向力、变形理论、疲劳寿命进行了研究。
In the three-dimensional numerical calculations based on sheet metal hydraulic torque converter of the axial force, deformation theory, reliability and fatigue life were studied.
利用RMT-150B岩石力学多功能试验机完成了单轴压缩状态下砂岩、大理岩和花岗岩试件疲劳破坏变形及机理的较为系统的试验研究。
Testing study is made on the fatigue failure and deformation mechanism of sandstone and marble under uniaxial compression condition with rock mechanics test equipment RMT-150B.
文章较详细地阐述了这种新颖结构在制造和使用过程中在应变、变形、固化、损伤、疲劳等检测方面的具体应用及发展趋势。
This paper puts emphasis on measurement and monitoring of strain, deformation, curing, damage and fatigue, which are quite suitable for smart compo...
文章较详细地阐述了这种新颖结构在制造和使用过程中在应变、变形、固化、损伤、疲劳等检测方面的具体应用及发展趋势。
This paper puts emphasis on measurement and monitoring of strain, deformation, curing, damage and fatigue, which are quite suitable for smart co...
文章较详细地阐述了这种新颖结构在制造和使用过程中在应变、变形、固化、损伤、疲劳等检测方面的具体应用及发展趋势。
This paper puts emphasis on measurement and monitoring of strain, deformation, curing, damage and fatigue, which are quite suitable for…
对比了模板优化前后的应力、变形及疲劳分析情况。
The stress, deformation and fatigue life of the optimal platen were compared with the original platen.
模具失效的基本形式有断裂与疲劳、塑性变形、磨损、咬合、冷热疲劳等。
Its basic forms are rapture and fatigue, plastic deforming, wearing, holding-on, cold and hot fatigue, etc.
目前大部分观察到的疲劳损伤都是由于没有注意到细节设计而由局部变形引起的。
Most fatigue damage observed so far has been attributed to the local distortion due to less attention paid to the detailing.
提示疲劳运动会降低人中性粒细胞的变形能力，影响其与变形有关的细胞吞噬功能。
Suggestion:Tiring exercises reduce the deformation of human neutrophils so that affects the engulf function of human neutrophils.
本文对不同变形量白口铸铁的热疲劳行为进行了探讨。
The thermal fatigue behavior of white cast iron with different quantity of deformation has been investigated in the paper.
本文对不同变形量白口铸铁的热疲劳行为进行了探讨。
The thermal fatigue behavior of white cast iron with different quantity of deformation has been investigated in the paper.
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