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strain relations
相关语句
  应变关系
    Methods of calculation pressure-volume strain relations with fractal geometry
    钢纤维混凝土压力与体积应变关系的分形计算方法
短句来源
    In this paper, the incremental stress-incremental strain relations of the Jones- Nelson-Morgan nonlinear composite materials model have been developed. The in- cremental formulas are used to analyze stress in the structure made of the nonlinear multimodulus materials und er the nonproportional loading.
    本文给出了Jones-Nelson-Morgan非线性复合材料模型的增量形式的应力应变 关系.应用此应力应变关系可以求解与加载历史有关的非线性模量复合材科的结构应 力分析问题。
短句来源
    This paper introduces an analysis method of three—dimensional nonlinear finite element of reinforced concrete structures which is under complex stress conditions. The analysis considers the concrete materials' nonlinear stress—strain relations, tensile cracking, compression crushing and strain—softening ect. .
    介绍了复杂受力钢筋混凝土结构三维材料非线性有限元分析方法,分析中考虑了混凝土材料的非线性应力—应变关系,拉环、压坏和应变软化等性能,同时对承受重复荷载作用时的材料性能作了描述。
短句来源
    At first,this paper decides the stress strain relations of steel and core concrete of concrete filled square steel tubes. In the core concrete's stress strain relations,the interaction of steel tube and core concrete is considered.
    确定了高温下组成方钢管混凝土的钢材和核心混凝土的应力 -应变关系模型 ,在核心混凝土的应力 -应变关系模型中考虑了钢材和核心混凝土相互作用的约束效应。
短句来源
    According to the practical stress and strain relations of concrete,the ultimate loads of circular section and rectangle section members under eccentric loads are calculated with nonlinear analysis method. A theoretical calculation method for a convert coefficient of the ultimate load by the influence of eccentric load is established.
    根据混凝土材料的非线性的应力 -应变关系 ,采用非线性分析计算的方法 ,对矩形、圆形截面的混凝土偏心受压构件的极限承载力做了理论分析与计算 ,建立了荷载偏心对构件承载力影响折减系数的计算方法。
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  “strain relations”译为未确定词的双语例句
    Three dimensional stress strain relations of concrete in concrete filled steel tubes
    钢管混凝土中混凝土的三向本构关系
短句来源
    Kotsovos and J. B.Newman and one way stress strain relations of concrete in concrete filled steel tubes. Three dimensional stress strain relations of concrete in concrete filled steel tubes is proved by an example analyzed by finite element program, and it can be used for three dimentional dual non linear analysis.
    B.Newman提出的混凝土三向本构关系和钢管混凝土中混凝土的单向本构关系模型,推导出一种适合于钢管混凝土三维双重非线性分析的混凝土三向本构关系,并通过编制的有限元程序计算算例,验证了所推导的钢管混凝土中混凝土的三向本构关系的正确性。
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  strain relations
The experimental results indicate that the patterns of stress-strain relations are distinctly influenced by the initial shear stress in the cyclic single-direction shear tests.
      
In order to obtain the tensile stress-strain relations, a special fixture was used for the impact tensile specimen.
      
Furthermore, the axial stress-axial strain relations between laterally confined concrete under axial compression and multiaxial stress-strain relations for steel at constant high temperatures were studied.
      
This paper gives the stress-strain relations of the variational types on the basis of an assumption concerning the small deformation in the theory of elasto-plasticity.
      
According to the theory of proportional loading in elastoplasticity, we simplify the complete stress-strain relations, which are given by the increment theory of elastoplasticity.
      
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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...

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。

Careful observations and analyses were made in connection with the rebound of the excavated pit and the settlement of the box foundation of a 9-11storeyed RC-framed hospital building to be erected on typical prehis-toric quarternary pluvial/fluvial soil deposits within the urban district ofBeijing. It was found that the amount of rebound due to the release of over-burdenpressure of 1.08kg/cm~2 was 1.24cm, which amounted to more than 50% of the to-tal settlement corresponding to the finished loading of 1.8kg/cm~2....

Careful observations and analyses were made in connection with the rebound of the excavated pit and the settlement of the box foundation of a 9-11storeyed RC-framed hospital building to be erected on typical prehis-toric quarternary pluvial/fluvial soil deposits within the urban district ofBeijing. It was found that the amount of rebound due to the release of over-burdenpressure of 1.08kg/cm~2 was 1.24cm, which amounted to more than 50% of the to-tal settlement corresponding to the finished loading of 1.8kg/cm~2. It seemedtherefore not appropriate to use the net pressure, which was 0.7kg/cm~2 in thiscase, in calculating the settlement of deeply embedded large foundations inlike soils. Although the general shape of the overall/laveraged load-settlement curvewas roughly a straight line, a further study on the stress-strain relation-ships of the soil layers at three different points beneath the foundation showeda definite trend of non-linearity and inhomogeneity that warranted a specialstudy. A plane sain finite element analysis was made accordingly to achieve atheoretical insight into the problem.The computer program was based on crossbeam structure model and conventional layered-sum settlement analysis method.However, three semi-empirical coefficients were introduced in order to take-care of the non-linear stress-strain relationships of the soils at different partsof the foundation.The calculated settlements thus obtained were very close tothose observed.

本文通过对北京市中医医院病房楼工程基坑回弹和地基沉降的实测,提出一种适用于北京一般第四纪土、考虑地基不均匀和非线性压缩模量的经验修正方案,作为大面积深埋基础用分层总和法计算地基变形和协同作用的依据。

In current methods for the calculation of the moment-curvature hysteretic curve, there are two basic assumptions concerning concrete in compression:(a) Cracked concrete, when subjected to compression under reloading, works as if uncracked.(b) For concrete in compression zone a stress-strain relation for repeated axial compressive cyclic loading, is adopted instead of that for reversed loading.On the basis of the above assumptions, the calculated moment-curvature curve under large cracked deformation will...

In current methods for the calculation of the moment-curvature hysteretic curve, there are two basic assumptions concerning concrete in compression:(a) Cracked concrete, when subjected to compression under reloading, works as if uncracked.(b) For concrete in compression zone a stress-strain relation for repeated axial compressive cyclic loading, is adopted instead of that for reversed loading.On the basis of the above assumptions, the calculated moment-curvature curve under large cracked deformation will present a pinching point; however such a point does not exist at the corresponding position in the experimental curve. Owing to the influence of secondary moment, the calculated result for load-deflection curve errs more than that for moment-curvature curve. If we consider the local contact effects of cracked section during reloading, the pinching point will disappear from the calculated hysteretic loops.On the basis of test data of local contact effects of cracked section, we propose herein a new equivalent concrete stress-strain relation for reversed loading. With the use of this relation instead of that for repeated loading, good agreement between experimental and theoretical results of hysteretic loops can then be obtained.

在现行的弯矩-曲率滞回曲线的计算中,有两个关于混凝土的基本假定: (1)混凝土开裂截面再加载时,像未开裂过的截面一样工作。(2)对混凝土受压区采用轴向重复加载的应力-应变关系而不是反复加载的。根据上述假定,在大开裂变形下,计算的弯矩-曲率曲线要出现一个拐点,而它在试验曲线中是没有的。我们发现在再加载时如果考虑了开裂面的局部接触效应,则上述拐点就不再存在。为此,本文提出一个考虑裂面效应的等效应力-应变关系,以代替过去国内外通用的重复加载应力-应变关系,从而使理论与试验结果较好地符合。

 
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