Some characteristics of the rolls, such as strength vs. Thermal shock, tensile strength and contact fatigue strength, influence spalling. Thus, strength was investigated as a hardness parameter.
辊子的一些特性，例如：强度、耐热性、抗拉强度、接触疲劳强度都和剥落有关。因此，强度可作为硬度的参数来研究。
By analysing individual parameter, the cause of fatigue damage of water tank was found out, the advice of improvement was put forward.
通过对各阶模态参数的分析，找出了水箱疲劳损坏的原因，并提出了进一步改进的意见。
The results show that multiaxial fatigue damage parameter presented in this paper may be used under either proportional or non proportional loading.
结果表明，本文所提出的多轴疲劳损伤参量既可用于多轴比例循环加载，也可用在非比例加载条件下。
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