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。
An elliptic paraboloid is proposed as the failure surface for concrete under multiaxial Stresses.
本文用椭圆抛物面作为混凝土三向应力时的强度破坏面。
The authors present a novel technique of atlantoaxial fixation using multiaxial C-1 posterior arch screws.
作者描述了使用多轴c - 1后弓螺钉固定寰枢椎这一较新颖的技术。
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。
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。
Experimental study on multiaxial failure criterion of concrete before and after wet-screened is just at the initial stages.
混凝土湿筛前后的多轴破坏准则的研究，目前尚处于初步阶段。
Experimental study on multiaxial characteristic of air-entraining concrete after freeze-thaw cycling is just in the initial stages.
冻融条件下引气混凝土的多轴力学性能研究，目前尚处于初步阶段。
With a simple form, the criterion can reflect the concrete strength precisely not only under uniaxial stresses but also under multiaxial stresses.
该准则的特点是：形式简单，不仅能正确反映混凝土单轴应力状态下的强度，而且能很好地反映多轴应力状态下混凝土的强度。
In view of the anisotropic damage characteristics of concrete under multiaxial stress state, an anisotropic elastoplastic damage model is presented.
针对混凝土多轴应力状态下各向异性损伤的特点，建立了各向异性弹塑性损伤模型。
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。
A nonlinear model and multiaxial rheological experiment results of soft rock are applied to practice, and the simulation agrees well with the reality.
尝试利用多轴非线性流变模型，将砾岩在多轴应力条件下的流变试验成果应用于实际工程，使仿真数值计算结果更接近实际情况。
In this paper, the stress-strain analysis and life prediction for the notched shafts were studied under multiaxial constant amplitude proportional loading.
本文针对多轴比例恒幅加载情况下的缺口件进行了应力应变分析和寿命预测研究。
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。
The structure and properties of multiaxial non-crimp fabrics and composite are discussed, the comparison with traditional woven fabrics is also carried out in this paper.
本文对多向无皱褶纤维织物及复合材料的结构与性能进行了分析，并与传统的方格布等织物及复合材料进行对比。
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。
The iterative formulas of elastoplastic stochastic finite element method (SFEM) under cyclic loading are deduced and the random responses of local multiaxial stress and strain are calculated.
推导了交变载荷下弹塑性随机有限元的迭代格式，计算了局部多轴应力应变的随机响应。
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。
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。
Multiaxial strain could refine the grains and improve the properties of the alloys;
多向强应变可细化晶粒，提高合金的力学性能；
Conclusion Multiaxial spot film is an effective tool to diagnose the occult rib fracture.
结论多轴位点片是诊断隐匿性肋骨骨折的有效工具。
Multiaxial Proportional loading experiments of concrete specimens under normal environment and after freeze-thaw cycling were made using triaxial test system for concrete.
将常态及冻融后的普通混凝土试块在多功能混凝土三轴试验机上进行了等比例的多轴加载试验。
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。
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。
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