但是,从颈缩开始,其应力应变关系处于复杂应力状态。
But the stress-strain relationship is in complex stress condition after the necking starts.
在复杂应力状态下延性金属材料的塑性损伤依赖于加载路径。
Plastic damage of ductile metals under complex stress depends on loading path.
在长期工作中,钻具承受拉伸、压缩、弯曲和扭转等复杂应力。
Drill string receives the complicated stress which is tension-compression stress, torsion stress, bending stress, etc.
金属材料在复杂应力状态下的韧性断裂是断裂力学研究的重要问题之一。
The problem of ductile fracture of metals under complex stress has been investigated extensively, but has not been resolved as yet.
采用数值方法分析了复杂应力条件下动力扰动对深部岩体破坏模式的影响。
The mechanical response of deep rock pillar, which is under complicated stress condition and then subjected to dynamic disturbance, is numerically simulated.
该模型依据经典塑性理论,能够明确指定复杂应力状态下湿化变形的各分量。
It bases on the classical plastic theory, and the components of wetting deformation under complicated stress state may be determined clearly.
由于复杂应力演化条件作用,岩质边坡坡脚处产生的沿开挖方向的变形最大。
The deformation along the direction of excavation at foot of the rock slope was maximum because of the rule of complicated stress evolution.
利用冻粘土试件进行了三轴蠕变试验,从而获得了复杂应力状态下的蠕变曲线。
The specimens of frozen clay are used for carrying out the long-term creep tests under triaxial stress states so that the creep curves of the frozen clay are derived.
通过程序计算,可以得到复杂应力作用下的任意截面形状的局部稳定性临界曲线。
Critical curves for local stability of sections of all kinds under complex stresses can be obtained through computation.
针对魏家地煤矿1070巷道返修工程,分析了复杂应力条件下软岩巷道破坏机理。
According to repairing supporting engineering of 1070 roadway in Wei Jia-di Coal Mine, stability failure mechanism of soft rock roadway engineering under complex stress conditions is analyzed.
砌体动力荷载作用下的弹性模量以及复杂应力状态下的弹性模量取值尚有待进一步研究。
Masonry under the action of dynamic load elastic modulus and the complex stress state under the elastic modulus value remains to be further studied.
通过对冻土的流变特性进行理论分析,建立了冻黏土在复杂应力状态下的对数型蠕变方程。
Through theoretical analysis of rheological properties of frozen soil, the logarithmic creep equation of frozen clay is established under complex stress state.
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。
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.
基于俞茂宏统一强度理论,研究了砂土在复杂应力状态下的动强度及其指标确定的新方法。
A new method was proposed to determine the dynamic shear stress and dynamic strength index of soil under the complex stress, based on the Yu Maohong's unified strength theory.
新生代构造现象既是中生代时期构造作用的延续,也是始新世以来复杂应力环境作用的结果。
The tectonic phenomena happened in the Cenozoic are caused by both of the continuity of the Mesozoic tectonic processes and the complexity of Cenozoic stress field.
在20世纪,关于材料在复杂应力状态下的强度理论进行了大量的理论研究和实验研究工作。
A considerable amount of theoretical and experimental research on strength theory of materials under complex stress state was done in the 20th Century.
研究表明,在复杂应力条件下,随着围压增大,峰值抗压强度明显提高,塑性变形明显增大。
The results indicate that the peak values of compressive strength and the plastic deformation will increase significantly with the increment of the confining pressure.
拱形巷道在复杂应力条件下的变形以及破坏形式呈多样化,与围岩性质、地应力和支护结构相关。
The distortion and destroy form of coved laneway in complicated stress condition are diversity, and it is relative with rock character, crustal stress and shoring structure.
针对涡轮叶片处于复杂应力状态的情况,分别采用四种不同的等效应力合成准则参照对比,探索其合成方法。
We find the turbine blade is on the complicated stress status, so four different rules for achieving equivalent stress are used to contrast.
将随机理论和概率论及统计原理的相关知识运用于可靠性研究之中,获得了复杂应力状态下的可靠度理论计算公式。
In this paper, the stochastic theory and the relative knowledge of probability statistics are applied to the statical strength reliability analysis.
在某些情况下,如进行复杂应力条件下的疲劳素损伤分布分析,疲劳失效寿命和应力幅水平的连续分布模型更有意义。
In some cases, the continuous distribution model of fatigue failure life and stress amplitude level is more valuable in analyzing the damage of ponogena under complicated stress.
复杂应力条件下的黄土损伤演化方程的表现形式与简单加载条件下的完全相同,区别只是在于损伤参量的影响因素不同。
Although the expressional form of damage evolution equation in complicated stress condition is the same as that in simple load condition, the influence factors are different of the damage parameters.
玻璃纤维网格布在建筑方面的应用日益增多,网布的表面涂上高分子涂层可以提高网布抗碱腐蚀和承受复杂应力的能力。
More and more fiberglass mesh were applied in architecture, it could improve the ability of alkali resistance and strength of fiberglass mesh by coating the mesh with emulsion polymer.
含高应力集中钢结构构件的厚度是影响其发生脆性破坏的一个重要因素,它的影响是和其应力集中区的复杂应力状态相联系的。
The thickness of steel elements with high stress concentration is a very important factor for brittle fracture. Its effects depend on the complex stress state for the stress concentration area.
应力波与隧道衬砌的相互作用问题为岩石力学的一个十分复杂的问题,到目前为止还没有得到圆满的解决。
The interaction of stress wave with tunnel structures in rock mass is a complex problem, which up to now has not been solved completely.
脱硫吸收塔结构及荷载形式复杂,常规设计计算方法不能给出其应力和变形分布情况。
The structure and load form of the absorbing tower is complex and regular design and calculation method cannot give its distribution condition of the stress and deformation.
这种预应力优化设计方法非常适用于该类复杂结构的预应力设计。
This optimized design method for prestressing is applicable to design of prestressing in that complex structural system.
对结构进行精确计算各种单独的压力和拉力,这就叫应力分析。这或许是桥梁建设中最复杂的技术。
The calculation of the precise nature of the individual stresses and strains in the structural, called analysis, is perhaps the most technically complex aspect of bridge building.
三维裂纹在动态断裂力学中由于其数学和物理上的复杂性,求解其动态应力强度因子受到一定的限制。
Because of the complexity in mathematics and the physics, solving the three-dimensional dynamic stress intensity factors is certainly limit.
无粘结预应力混凝土梁的分析要比有粘结混凝土梁复杂得多。
Analysis of beams prestressed with unbonded tendon is much more complicated than that of bonded concrete beams.
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