function creep

Based on a rockfill power function creep constitutive model, numerical realization step and detailed algorithm applied to analysis of general FEM is presented for the creep constitutive model.

推导了高围压下的幂函数流变本构模型在三维有限元分析中的具体算法和实现步骤。

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As ANSYS advanced development technology, UPFs provided the function of user creep equation.

ANSYS的高级开发技术UPFs，提供了用户自定义徐变函数的功能。

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Transient creep limit is a power function of steady state creep strain rate.

初始蠕变极限可以表示成稳态蠕变率的函数。

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Double Function Expression of Creep Model for Concrete

混凝土徐变分析的双功能函数表达

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Based on the creep curves of soft rock under uniaxial compression, a damage variable and a hardening function are introduced into creep model to express the nonlinear creep behavior of soft rock. A new nonlinear model for axial and lateral creep is established for soft rock.

根据对单轴压缩条件下软岩蠕变特性的分析，引入损伤变量和硬化函数，建立软岩轴向和横向非线性蠕变模型。

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The variation characteristics of the position of curved neutral layer and the relative creep function with time are studied systemically based on the rheological constitutive Burgers model.

基于Burgers流变本构模型，对岩层的中性层位置和相对蠕变函数随时间的变化特征进行了系统研究。

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Experimental study on the reduced stress relaxation creep function of the cancellous bones of lumbar spine

人脊柱腰椎松质骨归一化应力松弛蠕变函数

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Power function method for creep life prediction

蠕变持久寿命幂函数预测方法

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Results By viscoelastic properties theory regressed the experimental curve and obtained the creep function of C3 segment.

结果根据线性粘弹性理论拟合了试验曲线，得出了蠕变方程。

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It is proved that the main fact is stress deviation, moreover the nonlinear function among creep, stress deviation and time is established. The function is the nonlinear creep model.

找到了引起蠕变的主要因素应力差，并建立了蠕变应力差时间的非线性函数，即非线性蠕变模型。

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C B ялов proposed the frozen soil power function creep equation is a foundation, uses Mises yield criterion, to Modified C.

维亚洛夫提出的冻土幂函数蠕变方程为基础，采用Mises屈服准则，对C.C。

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Based on a new kind of rockfill power function creep constitutive model which can simulate high confining pressure state of rockfill, the developing rule of rockfill creep and the engineering method of control creep are studied.

采用一种能模拟高围压条件的堆石料幂函数流变本构模型，探讨狭窄河谷条件下堆石体流变变形的发展规律及相应的控制流变变形的工程措施。

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Based on the principle of superposition, a reversible creep expression was derived. According to this expression, a double function creep model for concrete was established and contrasted with a common creep model through the numerical analysis under various loads.

在叠加原理的基础上建立了混凝土徐变恢复函数，并利用恢复函数与徐变度函数建立了基于等效历史应力假定的双功能徐变函数。

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Based on the mechanical test results of a powder metallurgy material, the probability density function curves of the creep/ fatigue life at different temperatures are obtained by use of expertise, together with information and actual data of similar materials.

基于某粉末冶金材料的力学性能试验结果，结合专家经验、同类产品信息和现场数据，得到了该材料的蠕变寿命和疲劳寿命在不同温度下的概率密度分布曲线；

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Based on the ideas of force method and virtual-work principle, the calculation formulas of the fixed-end forces in element-system structures were deduced. It was found that the fixed-end forces of element were the function of the creep coefficient and the elastic fixed-end forces of the element.

本文根据徐变分析的力法和虚功原理，推导出杆系结构一次加载的单元徐变固端力计算公式，发现单元的徐变固端力是杆件的徐变系数和弹性杆端力的函数。

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Mutual Transformation between Material Relaxation and Creep Function

材料松弛与蠕变函数的相互转换

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