Based on experimental data and finite element analysis results, a low-cycle fatigue life model is proposed for the powder metallurgy superalloys under multiaxial stress states.
在详细分析试验和有限元计算结果的基础上，提出了复杂应力状态下的低周疲劳寿命模型。
Chapter 2: discuss experimental techniques of concrete under multiaxial fatigue load, carry out concrete uniaxial fluctuating compression fatigue experiments and analyze the experiment results.
第二章介绍混凝土多轴疲劳实验技术，进行了混凝土单轴受压疲劳实验，并对实验结果进行了理论分析。
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