Low cycle multiaxial fatigue failure is the main failure mode of aeroengine compressor disk.
低循环多轴疲劳失效是航空发动机低压压气机轮盘的主要失效形式。
A multiaxial fatigue life prediction model was built by means of the proposed multiaxial fatigue damage parameter.
根据该参量，本文建立了多轴疲劳寿命预测模型。
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。
The multiaxial cyclic characteristic of GH4169 was investigated for the thin tubular multiaxial fatigue specimen under proportional and non-proportional loading at high temperature.
薄壁疲劳试，控制应扭循环温合金材GH4169循环特性试验研究。
The results showed that most multiaxial fatigue cracks were initiated and propagated along the direction of maximum shear plane or on the direction perpendicular to the tubular specimen's axis.
研究表明，多轴疲劳裂纹主要是沿最大剪切平面或垂直于管形试样的轴线方向扩展。
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。
The fatigue fracture surfaces of multiaxial fatigue specimens subjected to proportional and non-proportional multiaxial loadings were observed and analyzed by using the scan electron microscope.
利用扫描电镜对多轴比例和非比例加载下的薄壁管多轴疲劳试样的断口表面进行扫描观测分析。
Multiaxial fatigue tests were conducted on 45 steel specimens at room temperature. Thin-walled tubular specimens were subjected to combined tension and torsion loading in low cycle strain control.
通过多轴疲劳试验，研究了在多轴加载条件下45钢的循环特性变化规律。
A method is outlined for making low cycle fatigue life prediction for engineering components subject to multiaxial loading.
介绍了一种预测受多轴交变载荷工程构件的低周疲劳寿命的方法。
It is proved by calculation that the model can describe well the performance of concrete under uniaxial and multiaxial monotonic loading and fatigue loading.
计算结果表明，该模型能较好地描述混凝土在单轴及多轴单调加载和疲劳加载下的性质。
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。
This paper bases on a part of the project of National Natural Science Foundation "Failure criterion of concrete under multiaxial variable-amplitude fatigue loading" (50078010) for study contents.
本文是基于国家自然科学基金项目《混凝土多轴变幅疲劳破坏准则》(50078010)中的一部分作为研究内容。
This paper bases on a part of the project of National Natural Science Foundation "Failure criterion of concrete under multiaxial variable-amplitude fatigue loading" (50078010) for study contents.
本文是基于国家自然科学基金项目《混凝土多轴变幅疲劳破坏准则》(50078010)中的一部分作为研究内容。
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