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1)  nominal fracture stress
名义断裂应力
2)  nominal stress
名义应力
1.
Study of fatigue strength assessment methods of welded structures based on nominal stress;
基于名义应力的焊接结构疲劳强度评定方法研究
2.
The fatigue strength of duplex stainless steel welded jointing with longitudinal fillet welded gusset and with longitudinal flat side gusset welded on plate were evaluated by hot spot stress,and the hot spot stress S-N curves were obtained and compared with the nominal stress S-N curves.
针对双相不锈钢焊接结构的疲劳性能问题,通过试验对双相不锈钢纵向角接板焊接接头和侧面角接板焊接接头疲劳强度用热点应力进行了评定,做出了热点应力S N曲线并与名义应力疲劳评定进行了比较。
3)  breaking stress
断裂应力
1.
Analysis on the breaking stress of sucker rod and avoidable measures in Guangbei Area of Bamianhe Oilfield;
八面河油田广北区抽油杆断裂应力分析与防治
4)  fracture stress
断裂应力
1.
Effects of notch opening angle on local cleavage fracture stress;
缺口夹角对细观解理断裂应力的影响
2.
In the case of the limited level density of the material surface energy, the fracture stress and the calculation formula of the engineering damage were studied.
本文研究考虑损伤时材料的断裂应力 ,推导出了在表面能密度有限的情况下 ,损伤断裂应力的计算公
3.
The local cleavage fracture stress a, was measured.
结果表明:加载速率较低时,断裂应力较高;加载速率较高时,断裂应力较低。
5)  stress rupture
应力断裂
6)  nominal stress approach
名义应力法
1.
On the basis of calculation results,fatigue life was estimated by nominal stress approach.
根据计算结果,采用名义应力法对紧固孔的疲劳寿命进行了估算。
2.
The nominal stress approach and the accumulative damage theory are adopted in order to analyze the buried pipeline fixing sector.
针对原油顺序输送埋地直管道的嵌固段,采用名义应力法和累计损伤理论进行管道疲劳寿命分析,得出埋地直管道交变热应力对管道寿命的影响较小,停启对管道寿命影响较大。
3.
The life prediction methods of notched specimen are reviewed,especially on nominal stress approach,local stress-strain method and stress field intensity approach.
概述了含缺口构件疲劳寿命预测方法,重点介绍了名义应力法、局部应力-应变法和应力场强法,总结了这些方法预测含缺口构件疲劳寿命的原理、应用方法、适用范围、优缺点,并介绍了近几年来这些预测方法在国内外的研究现状和进展。
补充资料:断裂应力
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性质:试样破坏瞬间的应力。在材料拉伸试验中,当材料被拉断时的应力被称为拉伸断裂应力。用σb(或σy)表示,单位MPa。由于材料结构和性状的差异,由于受力状态的不同,断裂可能呈现脆性破坏和韧性破坏两种形式,断裂发生就会复杂很多,在材料力学研究中就有各种强度理论来进行描述。塑料材料对工作环境温度,加荷速率等有明显依赖关系,脆性和韧性破坏的现象会发生互相转化。

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