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hypoplastic model
相关语句
  亚塑性模型
     SENSITIVITY RESEARCH OF PARAMETERS OF A HYPOPLASTIC MODEL IN OEDOMETER
     侧限压缩下亚塑性模型参数敏感性研究
     Based on the analysis of mechanical behavior of rockfill, the Gudehus-Bauer hypoplastic model is modified and introduced into constitutive modeling of rockfill.
     结合堆石料的力学特性分析,将Gudehus-Bauer亚塑性模型作一些改进后引入到堆石料本构建模中。
短句来源
     (4) The data from several conventional geotechnical tests obtained from literatures are numerical simulated and confirmed with the new hypoplastic model and the mechanical properties of the model are deeply further discussed based on the calculation results.
     (4)对几种常规室内土工试验进行了亚塑性数值模拟,结合计算结果对亚塑性模型做了进一步的力学特性分析研究。
短句来源
     Hypoplastic model comes of nonlinear tensorial functions and is developed without recourse to the concepts of elasto-plasticity.
     亚塑性模型起源于非线性张量值函数,没有传统弹塑性理论中相关概念。
  “hypoplastic model”译为未确定词的双语例句
     Bounding-surface hypoplastic model for rockfill materials under complex loading paths and its verification
     复杂加载路径下堆石料动力本构模型及数值模拟
短句来源
  相似匹配句对
     model.
     模型。
短句来源
     Model.
     模型的适用范围。
短句来源
     SENSITIVITY RESEARCH OF PARAMETERS OF A HYPOPLASTIC MODEL IN OEDOMETER
     侧限压缩下亚塑性模型参数敏感性研究
     Implicit numerical integration algorithm for hypoplastic constitutive model
     亚塑性本构模型的隐式数值积分算法
短句来源
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  hypoplastic model
The hypoplastic model captures the salient features of granular bodies in a wide range of density and pressure with a single set of parameters.
      
The hypoplastic model of granular media with internal variables is used as the basic model.
      
Propagation of low‐amplitude waves in soils is studied within the framework of a hypoplastic model that describes the nonlinear behavior of grainy media.
      
Based on a hypoplastic model of media with dilatancy, a nonlinear inhomogeneous wave equation describing compression waves in soil is derived, and its solution is analyzed.
      
General bifurcation conditions are formulated for a non-polar hypoplastic model and its micro-polar continuum extension.
      
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Hypoplastic constitutive theory,which was originated from the middle and late stage of the 20th century,is a new type of soil constitutive theory based on rational mechanics.Hypoplastic theory can reflect inelasticity,nonlinearity,dilatancy and other main mechanical properties of granular material.The origin and development,general representation of hypoplastic constitutive model are introduced;and mechanical and mathematical analysis is made.Besides,the modeling thought of recently updated...

Hypoplastic constitutive theory,which was originated from the middle and late stage of the 20th century,is a new type of soil constitutive theory based on rational mechanics.Hypoplastic theory can reflect inelasticity,nonlinearity,dilatancy and other main mechanical properties of granular material.The origin and development,general representation of hypoplastic constitutive model are introduced;and mechanical and mathematical analysis is made.Besides,the modeling thought of recently updated hypoplastic models is briefly introduced based on the study of the relation between void ratio and mean pressure and the relation between void ratio and volumetric strain of granular soil.Combining with the analysis of main mechanical properties of rockfill,the Gudehus-Bauer hypoplastic model which can reflect the latest international hypoplastic research level is modified properly and applied to constitutive modeling of rockfill.Finally,the new modified model is used in the hypoplastic numerical analysis of deformation and stress of a typical concrete face rockfill dam.Theoretical analysis and engineering application show that the new updated model can reflect inelasticity,nonlinearity,dilatancy and other main mechanical behaviors of rockfill and has the advantage of wide adaptability of constitutive parameters.

亚塑性本构理论是20世纪中晚期发展起来的一类基于有理力学的新型的连续介质本构建模理论,主要用于刻画无黏性散粒型土体的非弹性、非线性及剪胀(剪缩)性等主要应力应变特性。较详细地介绍了该本构理论的起源、发展和本构方程的一般表述形式,并做相应的数学力学特性分析。在对散粒型土体孔隙比与平均压力及孔隙比与体积应变关系分析研究的基础上,扼要介绍了新近发展的亚塑性模型的重要的建模改进思想。结合分析堆石料的主要工程特性,将能够反映当前亚塑性研究水平的Gudehus-Bauer亚塑性模型做适当改进后首次引入到堆石料的本构建模中,并将其应用到一典型混凝土面板堆石坝的应力变形数值分析中。理论分析和算例应用表明,所改进的Gudehus-Bauer亚塑性模型能够合理反映堆石料的非弹性、非线性、剪胀剪缩性等主要应力、应变特性,且具有本构参数适用范围广的优点。

An implicit numerical integration algorithm is proposed for solving the implicit rate type hypoplastic constitutive equation.The computational program for FEM of the Gudehus-Bauer hypoplastic model is developed.For accelerating the calculation speed and ensuring the calculation accuracy the technique of self-adaptive time step is introduced.The validity of this method is verified by geotechnical shear test data given by other author.The method is applied to numerically calculate the hypoplastic deformation...

An implicit numerical integration algorithm is proposed for solving the implicit rate type hypoplastic constitutive equation.The computational program for FEM of the Gudehus-Bauer hypoplastic model is developed.For accelerating the calculation speed and ensuring the calculation accuracy the technique of self-adaptive time step is introduced.The validity of this method is verified by geotechnical shear test data given by other author.The method is applied to numerically calculate the hypoplastic deformation of a rockfill dam.The analysis result is reasonable.

针对亚塑性本构方程率型隐式的特点,推导了求解亚塑性本构方程的隐式数值积分算法,并对该算法做了进一步改进,引入自适应时间步长技术,在保证精度和收敛速度的前提下,通过合理选择时间步长,降低了计算时间,保证了该计算程序的可靠性。通过采用该算法所编制的Gudehus-Bauer亚塑性模型有限元程序,对已知算例进行验证计算结果表明,本文算法比较精确。最后对一堆石大堤进行了应力变形的亚塑性数值求解,所得结果合理,反映了该大堤堆石料的主要应力应变特性,表明本文算法求解实际工程问题时可行。

>=Hypoplastic model comes of nonlinear tensorial functions and is developed without recourse to the concepts of elasto-plasticity. Based on the model, a constitutive equation is introduced for the oedometric case and sensitivity of its parameters is analysized in detail. It is shown, for cohesionless soil, change of some parameters results in big sinkage, but others are not.

亚塑性模型起源于非线性张量值函数,没有传统弹塑性理论中相关概念。基于该模型,对于单轴轴对称情况下,引入发一个本构方程,并详细分析了该模型各个参数的变化对结果的敏感性。结果表明,对于无粘性土,一些参数的变化将会导致较大的下沉量,而另一些参数对结果的影响甚微。

 
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