但通常的一些非线性损伤模型却不能反映荷载作用次序的影响。
But usually some nonlinear damage models can not reflect the influence of loading sequence.
提出了一种描述岩石、混凝土类材料断裂损伤过程区的细观力学模型,用于分析材料的非线性断裂的微观机理。
The cracking mechanism based on non linear fracture model for rock concrete materials is proposed and micro mechanical model for fracture process zone (FPZ) established.
以不同应力水平下的破坏率相等进行损伤等效转换出发,建立了新的非线性累积损伤模型。
A new non-linear accumulate damage model was derived from the concept of equal failure probabilities under different stress levels.
引入了地震损伤的整体演化指标,通过有限元方法利用材料塑性损伤模型模拟桥梁结构在地震激励下的非线性损伤演化过程。
The total evolution index was induced and the FEM of material plastic damage model was supplied to simulate the nonlinear damage evolution of bridge structure subjected to the earthquake excitation.
另外由于非线性徐变效应日益引起工程界的重视,重点论述了用于结构极限状态分析的非线性徐变破坏(损伤)模型。
Subsequently nonlinear creep damage model under limit state analysis is expatiated due to increasingly paying attention to nonlinear creep effect in civil engineering field.
据此,在标准线性固体模型的基础上,考虑损伤内变量的演化,建立了应变率相关的水泥砂浆的非线性黏弹性损伤模型。
Thus, a nonlinear viscoelastic constitutive relation for cement mortar based on standard linear solid model considering the evolution of the damage internal variable is established accordingly.
获得了用电阻变化测量疲劳损伤的公式,应用计及疲劳极限和循环应力幅影响的非线性累积疲劳损伤模型,给出了金属材料疲劳损伤的剩余寿命预测公式。
By using the nonlinear cumulative fatigue damage model considering the influence of the fatigue limit and the cyclic stress amplitude, the remaining life formula of the.
基于损伤条件下果实刚性跌落冲击变形特征,提出一表征其非线性黏弹性的动态流变模型,建立多层果实跌落冲击模型。
The dynamic nonlinear viscoelastic model and dropping shock model of multilayer fruit were developed in terms of the dynamics characteristics obtained by dropping shock tests.
编制了损伤模型的平面非线性有限元程序,并采用损伤模型和常规有限元模型的有限元程序对某矿山边坡进行对比计算分析。
A plane nonlinear program of damage module is compiled. The FEM program of damage module and conventional finite element module are used to calculate and analyze a mining slop.
在考虑加载历史对疲劳寿命的影响下,建立了描述混凝土累积损伤的非线性模型;并根据损伤等效原理给出了混凝土疲劳剩余寿命的预测方法和步骤。
Taking into account of the effect of loading history, a new nonlinear cumulative damage model is established and the steps to predict remaining fatigue life with the model is given.
并建立了混凝土非线性损伤本构模型,在此基础上编制了混凝土结构非线性有限元程序。
The program of non-linear concrete structure finite element analysis is worked out, by which the computed results strongly depend on the analyst's choice of finite element size were studied.
分别用进化计算中的遗传算法和进化规划进行了简易海洋平台基于非线性疲劳损伤模型的疲劳可靠性优化设计。
Both genetic algorithms and ev0lutionary programming are applied to the fatigue reliability-based optimum design of a simple off shore platform.
分别用进化计算中的遗传算法和进化规划进行了简易海洋平台基于非线性疲劳损伤模型的疲劳可靠性优化设计。
Both genetic algorithms and ev0lutionary programming are applied to the fatigue reliability-based optimum design of a simple off shore platform.
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