查询词典 proof stress

The bolt running through coarse joint is subject to shearing stress and pulling stress. It is important to study anchoring strength and stress distribution characteristics of bolts pulled by force.

贯穿膨胀节理的锚杆，除了承受剪应力外，还受到拉应力的作用，锚杆在拉应力作用下的锚固强度和受力变形特点对于分析锚杆在节理中的加固作用就显得非常重要。

This experiment adopts artificial simulation research approaches, namely using the standardized moisture stress conditions with hypertonic solution to immerge rubber tree seeds during germination to elementarily select out some rubber seedlings, which could stand the high-osmosis stress. The germination characteristic of the rubber tree seed under high-osmosis stress was observed and the phenomena of growth and dynamic changes of physiology and biochemistry were determined and analysed, and then its ability of drought-resistance was valued.

本试验采用人工模拟研究方法，利用高渗溶液提供标准化的水分逆境条件，对催芽过程中的橡胶树种子进行人工胁迫处理，并筛选出耐高渗胁迫的橡胶籽苗，观测种子的萌发特性和选出籽苗的生理生化特性并对其抗旱性作出评价。

On the stress diagram drawn, can be seen the stress-concentratcd area and the distribut -ing situation of global stress.

该分析提供了四通壳体在试验压力下的应力与位移分布，从绘出的应力图中可以看出应力集中区域和全局应力分布状况。

The three-dimensional stress diagram shows that the stress concentration is rather severe in the bridge of the hot extrusion die, and that the stress distribution is very uneven.

通过优化设计结果可得出挤压模的最佳高度为89.596mm，最佳的浇道口半径为65.048mm和80.065mm，与没有优化前相比应力集中减少27%。

The result shows that the cruciform specimen with square thinning center region is the superior device for the investigation of forming limit stress diagram to obtain the more homogeneous stress distribution in the center region, to realize the large deformation and the fracture appears in the center region more easily, and to control the stress concentration preferably.

结果表明，中心区方形减薄的十字形试件有更好的中心区应力分布均匀性，更容易实现大变形以致破裂发生在中心区，能较好地控制应力集中，是更适用于板料成形极限应力图研究的实验装备。

The forming limit stress diagram relates only to the stress state of instability, and the forming limit stress diagram calculated by linear strain path can be used sheets stamping forming under complex strain paths in the capacity of fracture criterion.

成形极限图与应变路径有关，因此在线性应变路径下制作的成形极限图不能直接应用于复杂应变路径。

The simulative model of temperature field and stress field in concrete , Heat and moisture coupling、Parallel simulative calculation of concrete with water pipe cooling、 Parallel feedback analysis of thermal characteristic parameters, and stress intensity factor of induced joint, which are the sixty-four-dollar questions, are studied in this dissertation. The main contents of this dissertation are as follows:(1)Based on the past and current research work, the calculation theory of the transient temperature field and creep stress field of mass concrete which self temperature influence is considered is deduced. The couple effect between the temperature field and humidity field of concrete, is considered on the basis of conservation law of water and energy, and the coupled formulation which coefficient is not constant of the heat and moisture in concrete is deduced. The calculation theory and model which is theoretically strict for solution to thermal problem in concrete with water-cooling pipes are recommended.

本文主要针对混凝土的温度场应力场仿真计算模型、热湿耦合、水管冷却问题的并行仿真、混凝土温度参数并行反演分析以及诱导缝应力强度因子计算等混凝土大坝温度应力数值仿真的关键技术进行了较为深入的研究，全文主要内容如下：(1)在现有研究基础上，推导了考虑自身温度影响的混凝土非稳定温度场和徐变应力场的计算理论；基于水分质量守恒和能量守恒原理考虑混凝土温度场和湿度场的耦合作用，推导了混凝土的变系数热湿耦合方程，并建立了相应的计算模型；引用严密的水管冷却混凝土温度场的计算理论和计算模型，比较了两种简化计算方法用于水管冷却混凝土仿真计算的不足。

This article mainly simulates gradually damage destruction process of rock, major in determinationg the definition of rock three-dimensional damage tensor, simplify to the damage tensor and obtain its engineering calculation method, and obtains the basic expression form of equivalent stress by equivalent stress assumption, symmetrization to the actual stress, thus obtains construction relation of the festival principle of three-dimensional damage rock mass, finally couples elasticity- plasticity with damage in the finite element equation, with reference to elasticity-plasticity gradually degenerated method thought, simulates rock damage to advance gradually the destruction process in finite element method, draws up elasticity - plasticity and damage coupling two-dimension finite element procedure with the C language in the VC contact surface, by simulating experiment destroyed process, acquires destruction image and the axial load distortion curve of model, agreement with the experimental result.

本文主要模拟岩石渐进损伤破坏过程，确定岩石三维损伤张量的定义，对损伤张量进行简化计算并得出其工程计算方法，采用等效应力假设得出有效应力的基本表达形式，对有效应力进行对称化，得出节理损伤岩体的三维本构关系，在有限元方程中实现弹塑性和损伤耦合；借鉴弹塑性渐进退化方法的思想，采用有限元的方法模拟岩石损伤渐进破坏过程，用C++语言在VC界面编制了弹塑性和损伤耦合的二维有限元程序，通过模拟已有的实验破坏过程，得出模型的破坏图像和轴向荷载变形曲线，与实验结果基本一致。

It is proved that the obtained radial and tangential stress curve link glossily at hardening zone radius r=R, and softening zone radius r=R and curve of tangential stress σ(subscript θ)/p0-r/α has not up-pinnacled stress concentration especially, the result goes all the way with the experiment result of Japanese scholar Jiuwubosheng.

证明了所求得的巷道围岩径向和切向应力曲线在硬化区半径r=R和软化区半径r=R处均光滑连接，特别是所求得的切向应力σ/p0-r/α曲线没有尖峰向上的应力集中，此结果与日本学者久武胜保的试验结果一致。

Shear stress and tangential stress of surrounding medium concentrate around bolt column and influencing range of stress is limited.

4周围介质的剪应力和环向应力集中于锚柱附近，影响范围很有限。

Nowadays, most of research are to build a transmutative Petri Nets through adding controlling place sets, controlling arc sets and controlling policy to the basic Petri Nets, while the Controlled Petri Nets could be used to argue many controlling theory problems conveniently and to induce many logically and physically supervisory and solve the Event Feedback Controlling Problems and State Feedback Controlling Problem in DEDS supervisory theory.

目前大多数的研究表现为在变形后的受控Petri网基础上，利用各种方法求得各种逻辑型、结构型控制器，解决DEDS监控理论中的事件反馈控制问题与状态反馈控制问题。

On one hand, there are discussions with the works council and union about extension of short time working up to the end of September.

一方面，有讨论，工程理事会和联盟关于延长工作时间短至9月底。