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plastic regions
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  塑性区
     Finally,an example is analyzed to show the characteristics of stress and strain distributions in the cracked and plastic regions and the influence of cracked region radius on them.
     最后,给出一个算例,分析其破裂区和塑性区应力、应变的分布特点以及破裂区范围的影响。
短句来源
     Results show that the instability of deep-buried hardrock tunnels is not only influenced by rock mass characters and loads,but also related with the ratio of the stiffness of elastic regions over the stiffness of plastic regions.
     结果表明:深埋硬岩隧道的失稳不仅受岩体特性及所受载荷的影响,而且与围岩中弹性区刚度和塑性区刚度的比值有关;
短句来源
     The paper comes from the actual project Tiantan East-station of Beijing No. 5 Subway. Inthe paper, the situation of displacement, stresses and plastic regions are studied.
     本论文以北京地铁 5 号线天坛东门站开挖支护工程为背景,结合具体的工程地质条件,对车站施工过程中周边土体的位移、应力以及塑性区变化情况作了探讨。
短句来源
     Some plastic regions could be found and some dimples had been observed on the fracture surfaces of the solidification cracking of austenitic-ferritic weld metals.
     少量铁素体的焊缝凝固裂纹断口上有许多小塑性区,有明显的韧窝。
短句来源
     According to the conditions that the stresses are continuous at the elastoplastic interface and that the radial strains are continuous at the plastic-cracked interface,the computational formulae to determine the radii of cracked and plastic regions are obtained.
     通过利用在弹塑交界处应力连续的条件以及在破裂和塑性交界处径向应变连续的条件,获得确定围岩破裂区和塑性区半径的解析式。
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  “plastic regions”译为未确定词的双语例句
     And it is recommend that it be added some details of seismic design in potential positive plastic regions for frame structures in intensity 9. The minimum reinforcement ratios of the frame beam and column of seismic grade 1 given in Chinese code is reasonable.
     本文分析表明,在高烈度地区按我国规范设计的框架结构延性偏小,主要原因是潜在塑性铰区长度偏小,建议对二、三级抗震等级的框架结构,其箍筋加密区的长度应适当增加; 对9度区的框架结构在离开柱边一定距离的潜在正弯矩塑性铰区应增加相应的抗震构造措施;
短句来源
     The paper discusses the discontinuity behavior on the boundary between rigid and plastic regions in the dynamic analysis of rigid-perfectly plastic body.
     本文讨沦了理想刚-塑性体动力分析中在刚-塑性交界面上的间断性质。
短句来源
     This paper derives the general relationship on elastoplastic flow rule and Constitutive equations, which can take account of the uncontinuity in elastic and plastic regions and the nonlinearity of stress-strain response.
     本文导出了比较普遍适用的弹塑性流动法则及本构方程,可以考虑应力应变模式的非线性性及其在弹性阶段和塑性阶段的非连续性;
短句来源
     The method employing complex function to find plastic stresses is further developed. The stress concentration function and the demarcation lines between elastic regions and plastic regions are given under complex loading conditions.
     本文发展了伽林等用复变函数求解塑性应力的方法,在更复杂的受力条件下给出应力集中函数及弹塑性界限形状。
短句来源
     Using the finite element method, this paper has studied the stress field and elastic and plastic regions around faults in different orientations under slowly loaded two dimensional pressure. The results are as follows : ①In the case of plastic or ductile deformation, conjugate shear angle of the deformation belts is usually larger than 45°;
     采用弹塑性有限单元方法 ,通过模拟符合实际状况的逐步加载过程所引起应力场和塑性形变区的研究 ,得出如下结果 :①在塑性或韧性剪切形变情况下 ,断裂或形变带的共轭剪切角往往大于 4 5° ;
短句来源
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  相似匹配句对
     Calculation of Rigid Regions by Rigid-Plastic Finite Element Method
     刚塑性有限元法中刚性区的计算
短句来源
     Regions and the World
     地区与世界
短句来源
     PLASTIC FINISHING
     塑料涂装
短句来源
     On Plastic Ability
     “造型能力”简论
短句来源
     Elastic visco-plastic analysis for earthquake response of tunnels in cold regions
     寒区隧道地震响应的弹粘塑性分析
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  plastic regions
Even in an initially purely elastic shaft two plastic regions with different forms of the yield condition may emerge simultaneously at the centre.
      
Plastic regions, fan zones, lines of discontinuity and stress states are analytically determined for obtuse wedges under the action of the prescribed kinds of loading.
      
This permits to ensure continuity between the elastic and the plastic regions during the loading process.
      
The other possibility is that, depending on the core radius, two plastic regions form one after the other or simultaneously, in the core and at the surface and join in the fully plastic state.
      
The evolved shear band patterns appear to be a strong function of loading rate, although the plastic regions beneath the loading surface have similarities in shape irrespective of loading type.
      
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The present paper treats the compression of a rectangular block between two parallel rough plates as a problem in the theory of plane strain for perfectly plastic-rigid materials.At first, the plastic-rigid theory of plane strain was outlined, then, the solution to the present problem is briefly surveyed. In section 4, the case that is left out in the present literature, viz. when the width-height ratio lies between 1 and 3.64 for partially rough plates is solved. In this treatment, the coefficient...

The present paper treats the compression of a rectangular block between two parallel rough plates as a problem in the theory of plane strain for perfectly plastic-rigid materials.At first, the plastic-rigid theory of plane strain was outlined, then, the solution to the present problem is briefly surveyed. In section 4, the case that is left out in the present literature, viz. when the width-height ratio lies between 1 and 3.64 for partially rough plates is solved. In this treatment, the coefficient of friction ν is considered as constant along the contact surfaces. For eachμ, a critical value of the ratio w0/h is given. When w/hplastic region extends across the entire block, i. e. the unrestricted plastic flow is possible, before the frictional force is put to full use. In this case, there is no slip along the contact surfaces and the solution is the same as if the contact were perfectly rough.When w0/h

本文将平行刚性压板间的塑性流动问题作为理想刚塑性的平面应变问题处理;先简单的复习理想刚塑性的平面应变问题,然后对本问题已做的部分作简短的介绍,再处理了现在还未解决的情形,那就是:当1

At a result of a theotetical analysis of the elastic, ability of shell, it is shown that when the effect of the restraint on the edges can be ignored, the buckling stress of a shell may be determined with the aid of the following formula: where Te is the total compresive stress in the direction θacting on a unit-length section of the shell Rθ+π/2, is the radius of curvature of the shell along the section; δis the thickness of the shell E is the modulus of elasticity of the material, and μis the poi- sson's ratio....

At a result of a theotetical analysis of the elastic, ability of shell, it is shown that when the effect of the restraint on the edges can be ignored, the buckling stress of a shell may be determined with the aid of the following formula: where Te is the total compresive stress in the direction θacting on a unit-length section of the shell Rθ+π/2, is the radius of curvature of the shell along the section; δis the thickness of the shell E is the modulus of elasticity of the material, and μis the poi- sson's ratio. The condition under which the effect of the edge restraint can be ignored is that where le is the span of the shell in the direetion θ. Some examples in which boundary condition have to be considered have been worked out, and the results are compared with the known results. Finally, an approximate expression is proposed for the tangential modulus of ela- sticity of the materiad, to thet the results of the present analysis can be extended to cover the elastic plastic region. A formula for use in practical structural calcu-lations is also given

弹性稳定理论分析的结果表明,当周边约束的影响可不考虑时,一般双曲薄壳的临界内力可按下式决定:式中:Te-壳体在θ向的单位长度截面上的计算(压)内力;-壳体中曲面沿截面走向的曲率半径;δ-壳体厚度.E-材料弹性模数,μ-巴桑比数. 周边约束影响可不予考虑的条件如下:式中le为壳体在θ向的跨度. 文中在分析了若干个在其中边界约束的影响必须于以考虑的例子,并将结果与已知结果作了比较. 最后,作者建议采用材料正切弹性模数的近似表达式,以便将分析结果,推广到弹塑性范围,并提出了结构计算中的实用公式.

In earthquake-resistant design, consideration must be given to the ductility of structures when subjected to seismic loading into the inelastic range. Research work in connection with this papar includes analysis of experimental results and development of a computer program for the calculation of the ductility factor of reinforced concrete flexural members. A new expression for the stress-strain relation was used in establishing the moment-curvature relations. Besides, in connection with displacement calculation...

In earthquake-resistant design, consideration must be given to the ductility of structures when subjected to seismic loading into the inelastic range. Research work in connection with this papar includes analysis of experimental results and development of a computer program for the calculation of the ductility factor of reinforced concrete flexural members. A new expression for the stress-strain relation was used in establishing the moment-curvature relations. Besides, in connection with displacement calculation the actual length of plastic regions and the actual distributions of curvature therein were also studied.

抗震设计中,在非弹性范围内承受地震荷载时,需要考虑结构的延性。在本文的工作中分析了受弯构件实验结果和研究了计算钢筋混凝土受弯构件延性系数的计算机程序。在弯矩-曲率计算中采用了新的混凝土应力-应变表达式、在位移计算中考虑了塑性区实际长度和曲率分布。

 
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