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1)  mean breaking stress
平均断裂应力
2)  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
3)  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。
4)  stress rupture
应力断裂
5)  Plane-stress fracture toughness
平面应力断裂韧性
6)  Mean stress
平均应力
1.
The effect of mean stress was studied.
为了进一步拓宽超声疲劳试验的研究范围,对50钢进行了含有平均应力的三点弯曲和非对称拉压疲劳性能试验,得到相应的疲劳 S-N 曲线,研究了平均应力对其超高周疲劳性能的影响。
2.
The author investigates the effect of mean stress and stress's amplitude with the non symmetry low cycle fatigue (LCF) experiment of two kinds of PD3 rail steel (hot rolling and off line heat treatment) produced by PanZhiHua steel company.
通过对攀钢生产的两种PD3钢轨钢 (热轧和离线全长热处理 )的非对称低周载荷疲劳实验 ,比较了平均应力和荷载幅值对两种PD3钢轨钢寿命的影响。
3.
Through the experimental results and study on the reason of fracture,we considered that mean stress and maximum shearing stress were different in tension and compression,condition of fracture was proposed.
通过观察实验现象和分析破坏原因,认为平均应力对脆断影响显著。
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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