creep function

Using the analysis method of shrinkage and creep based on initial strain, This thesis fitted the shrink strain and the creep coefficient function with uniform exponential function model and find a way to get the recursion formulae of shrinkage and creep.

按照初应变法计算收缩徐变的原理，将04规范收缩应变和徐变系数的计算表达式拟合成统一的指数函数，得出收缩徐变递推计算公式。

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Here the superposition method and creep function of sealed concrete of ACI209 R82 are used in the analysis to fit with the application in engineering.

为适合工程应用，在徐变分析中采用“迭加法”和ACI209-R82密闭混凝土徐变公式，就紧箍力的有无分别讨论钢管混凝土的时变特性。

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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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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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It was proper to choose 55 ℃ as reference temperature for master curve of creep compliance function.

选取55℃作为参考温度，获得长时蠕变主曲线和柔量曲线。

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Two aspects of properties are related to creep of concrete filled with steel tube ( CFT) under axial load: creep function and computational method.

研究钢管混凝土在轴向载荷下的徐变特性涉及两方面：徐变函数和计算方法。

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According to the theory of equivalent time, creep as a function of equivalent time is expressed. By fitting experimental data, parameters of creep in equivalent time field are obtained; initial strain implicit solution of elastic creep equation in equivalent time field is derived.

根据等效时间理论，将徐变表示为等效时间的函数，通过拟合试验数据，得出等效时间域弹性模量和徐变度公式的计算参数，推导了等效时间域的弹性徐变方程的初应变隐式解法。

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During the earlier time of creep function, the elasticity and viscosity parameters have a great effect on the position and deformation curvature of curved neutral layer.

蠕变前期，岩层弹性、黏性参数对中性层位置和变形曲率都有较大影响，但随着时间增加这种影响迅速减弱；

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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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The high-temperature creep is an important function target of the high-temperature structural ceramics.

高温蠕变是高温结构陶瓷材料一项非常重要的性能指标。

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Results The stress relaxation and reduced creep data and the curves of L5 were obtained. The reduced stress relaxation and reduced creep function and its curves were also gained, together with the regressive coefficient a, b, c and d.

结果得到了L5椎体应力松弛、蠕变数据和曲线，还得出了归一化应力松弛、归一化蠕变函数及曲线取得了回归系数a、b、c、d值。

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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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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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