• 提出了岩石破坏应变梯度理论模型。

    The theory of gradient strain is put forward.

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  • 其次主要介绍应力的一类应变梯度理论及其应用

    Then, we introduce a strain gradient theory and its main applications, in which no high-order stresses are included.

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  • 采用基于应变梯度理论假设应变有限元方法研究微尺度弯曲尺寸效应

    An assumed strain finite element method based on the theory of strain gradient was proposed to explore the size effect that frequently exhibited in micro-beam bending.

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  • 本文系统地介绍微细塑性成形方法以及目前常用应变梯度塑性理论

    This paper systematically introduces some methods of micro-forming and a universal theory about strain gradient plasticity at present.

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  • 经典弹-塑性理论屈服函数引入应变梯度考虑应变效应函数。

    The second shear strain gradient and the function reflecting the effect of strain rate are introduced into the yield function of classical elastoplastic theory.

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  • 基于应变梯度塑性理论分析作用下厚壁圆筒塑性极限荷载

    Plastic limit load of viscoplastic thick-walled cylinder and spherical shell subjected to internal pressure is investigated analytically using a strain gradient plasticity theory.

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  • 本文首次应用应变梯度塑性理论韧性剪切进行了理论分析

    In the first time, a theoretical study on ductile shearing bands based upon strain gradient plasticity theory is conducted in this paper.

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  • 基于梯度塑性理论考虑应变局部化,提出轴拉伸条件下岩样全程应力—应变曲线解析

    Analytical solution of complete stress-strain curve of rock specimen in uniaxial tension is proposed based on gradient-dependent plasticity considering strain localization initiated at peak strength.

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  • 由于微结构效应,基于梯度塑性理论剪切内部的最大塑性剪切应变最高温度预测值高于经典理论的预测值。

    The prediction values of shear strain and temperature in shear band based on gradient-dependent plasticity are higher than those by use of classical elastoplastic theory.

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  • 应用应变梯度塑性理论局部化剪切带内部(塑性)剪应变()规律进行理论分析

    A theoretical analysis of localized strain and strain rate in shear band after localization occurs beyond the peak shear stress is carried out based on the strain gradient plasticity theory.

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  • 基于梯度塑性理论研究应变软化阶段刚度劣化剪切内部的局部应变及相对剪切位移的影响。

    Distributed shear strain and displacement in localized shear band were investigated considering degraded stiffness in the strain-softening process based on gradient-dependent plasticity.

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  • 梯度塑性理论用于研究韧性断层内部应变应变分布规律、断层带错动位移带内孔隙度分布规律,韧性断层带定量分析提供新的手段

    The theory can be used to study the distributed strain, strain rate, porosity and plastic shear displacement in fault band, which presents a new method for quantitative analysis of ductile shear zone.

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  • 因此非常必要建立一个包含内禀材料长度微米尺度连续统理论应变梯度塑性理论)。

    Therefore, it is necessary to establish a micron level continuum theory (strain gradient plasticity theory) considering the intrinsic material length.

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  • 基于梯度塑性理论分析应变软化真实裂纹扩展阶段局部化张拉位移转角

    The tensile displacement and angle of rotation of tensile strain localized band are analyzed in strain softening stage and in real crack propagation stage based on gradient-dependent plasticity.

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  • 基于梯度塑性理论分析应变软化真实裂纹扩展阶段局部化张拉位移转角

    The tensile displacement and angle of rotation of tensile strain localized band are analyzed in strain softening stage and in real crack propagation stage based on gradient-dependent plasticity.

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