• 稳定蠕变应变本构方程作用盐岩应力偏量的函数能量温度指数函数。

    The steady-state creep strain rate is a power function of deviatoric stress and exponential function of temperature and energy.

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  • 最大累积等效蠕变应变位于内层焊点,且芯片边缘

    The maximum cumulative equivalent creep strain was located in inner solder ball and at the edge of silicon chip.

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  • 红砂岩加速过程中具有高度非线性蠕变应变随时间呈现跳跃增长特性

    The accelerative creep shows highly nonlinear characteristics; and the creep strain rate displays a discontinuous form, which occurs in jumps change.

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  • 稳定应变本构方程作用盐岩应力偏量的函数能量温度指数函数。

    The steady state creep strain rate is a power function of deviatoric stress and exponential function of temperature and energy.

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  • 基于压做功概念定义了压痕硬度蠕变应变速率,从而给出钎料蠕变敏感指数

    The creep strain rate sensitivity can be determined from the relationship between the creep hardness and creep strain rate by the definition of "work of indentation".

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  • 结果人体硬脑膜特征为:初始应变所加的应力大体成线性关系蠕变应变时间缓慢增加

    Results the creep properties of human dura presented a linear-relationship between initial strain and stress, and the creep strain increased slowly with time.

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  • 比较获得拉伸破坏荷载-时间曲线以及蠕变应变-时间曲线试验方法给出了外推蠕变曲线数据处理步骤

    The methods of creep test to get both curves of tensile creep rupture load vs time and creep strain vs time are compared. The procedures to extrapolate the two types of creep curves are presented.

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  • 根据岩石应力-应变曲线可以近一步分析得到等时模量曲线。

    We can gain the isochronous - modulus curves from the curves of stress - strain ratios.

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  • 由于蠕变应力松弛影响粘结应变可逆增加使TGO层界面形貌出现起伏。

    Impacted by creep and stress relaxation, the strain of bond coat layer increases irreversibly, and the TGO layer convolutes .

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  • 蠕变加载作用时间缩短疲劳载荷频繁导致在较小应变结束应变阶段进入延迟弹性平台应变阶段。

    The shortness of creep loading time and the faster frequency of fatigue load change induce general elastic strain stage to end and delayed elastic strain platform stage to begin under shorter strain.

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  • 本文根据室内蠕变试验提出了一项分析土的粘塑性应力—应变关系方法

    Based on laboratory creep tests of soils, the method for analyzing the elastic-viscoplastic stress-strain relations are presented in this paper.

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  • 意味着应用预应力初始弹性应变降低减少大约正比的弹性应变

    This means a reduction in initial elastic strain under application of priestess force and a reduction in creep strain, which is approximately proportional to elastic strain.

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  • 实验研究表明:基于经典弹塑性蠕变理论本构方程,非弹性应变高温下其本质上时间相关的。

    The experimental and research results indicate that non-elasticity strain associate with time in nature according to constitutive equations of the classical elastic-plastic and creep theory.

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  • 卸载状态下冻土三轴蠕变试验结果表明冻土具有明显剪胀性体积应变不能忽略

    The results of triaxial creep experiments for unloading state show that the frozen soil has an obvious dilatancy, and its volume strain should not be neglected.

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  • 模型中的强化项弱化曲线精确描述蠕变应变强化过程应变弱化过程。

    Thirdly, the strain-hardening and weakening curves all accurately describe the strain harden and weaken processes of creep.

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  • 研究了不同成份镁合金中温和不同应力作用下的动态应变时效阐述了动态应变时效循环蠕变中的作用。

    The application of dynamic strain ageing during cycling creep of Al-Mn alloys , consisting of various compositions, is studied at the middle temperature in this paper.

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  • 利用自行改装后三轴蠕变海相沉积的营口进行蠕变试验,获得了在不同、不同偏应力条件剪切应变时间关系数据。

    The relationship between shear strain and time of Yingkou soft soil is obtained under a series of different cell pressures and different deviator stresses.

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  • 分析岩石多孔隙特性强度实验应力-应变曲线蠕变特性曲线松弛特性曲线。

    Rock's characteristic of multi-interspace, the complete stress-strain curve in strength tests and characteristic curve of creep and relaxation are analyzed.

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  • 试样的微观断口分析显示高温应变疲劳试验同时存在疲劳、蠕变氧化损伤

    The results show that fatigue, creep and oxidation damage always develops simultaneously during low cycle fatigue at high temperature.

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  • 本文给出板坯宽面“肚”蠕变“鼓肚”的近似计算以及坯壳内外表面的应变计算式。

    In this article, the calculated result of the creep bulging and the equations tc calculate strains of inter - and outer-surfaces of cast slabs are given.

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  • 结果显示动态应变循环状态,蠕变大小、速度与循环应力幅值有关。

    The experimental results showed that the dynamic strain has feature of cyclic creep. Cyclic loading affected the creep and creep speed.

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  • 同时,基于粘弹性应力分析模型得到管材蠕变应变逐渐减小由于聚乙烯屈服应力具有明显的率相关性,屈服应力也随之逐渐减小

    It is found that hoop stress increases due to reduction in wall thickness of HDPE pipe, while yielding stress decreases owing to decrease of strain rate.

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  • 实验项目应变拉伸、等应力蠕变控制应变应变率塑性循环

    The experimental items of the tests are tension of constant strain rate, creep at constant stress, and strain controlled low cycle fatigue of constant strain rate.

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  • 研究结果表明应变速率下的热塑性密切相关

    The results show that creep should be connected with hot ductility at low strain rates.

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  • 本文提出一个模拟有限应变各向同性蠕变-弹塑性-损伤耦合本构行为数值模型

    A numerical model to simulate isotropic, coupled creep elastoplastic damage constitutive behavior at finite strain is proposed in the present work.

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  • 相同应力条件,不排水常规压缩应变小于减压三轴压缩蠕变应变值;

    The value of strain of undrained conventional triaxial compression creep is less than that of reduced triaxial compression creep under the same deviator stress;

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  • 得到高温–高含冰量冻结黏土单压缩蠕变方程应力应变关系长期强度方程参数

    Furthermore, the parameters of the creep equation, long-term strength equation and relationship between stress and strain of the warm and ice-rich frozen soil were obtained.

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  • 试验不仅实现了应变逐步加载过程,同时也实现蠕变加载应力松弛过程。

    The strain rate was changed stepwise several times; and stress relaxation tests and a set of creep tests were performed during otherwise monotonous loading at a constant strain rate.

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  • 试验不仅实现了应变逐步加载过程,同时也实现蠕变加载应力松弛过程。

    The strain rate was changed stepwise several times; and stress relaxation tests and a set of creep tests were performed during otherwise monotonous loading at a constant strain rate.

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