tension-tension fatigue strength 双向拉伸疲劳强度
Internal fatigue cracks occurred in the fracture of a quenched and tempered carburized steel specimen under tension-tension fatigue loads are discussed in this paper.
本文对淬火加回火渗碳钢的拉伸一拉伸疲劳断口进行了内裂纹的分析和研究。
Research reveals that views of trees, lawns, flowers and water can banish tension, fatigue and anxiety by lowering our heart rates and reducing muscle tension.
研究表明,看到树木、草坪、鲜花和水能助人降低心跳速度,降低肌肉紧张程度,进而驱除紧张、疲倦和焦虑。
The proof strength can be used to evaluate the tension-compression fatigue strength of gray cast iron, and also used as the stress level of the tension-compression fatigue test.
利用引伸计拉力试验中的规定总延伸强度可以评价灰铸铁的拉压疲劳极限,也可以利用该数值作为预计的疲劳极限,用于拉压疲劳试验应力水平的选取。
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