Based on the fatigue cumulative damage models, a damage evolution equation for flexural fatigue of SFRPC slabs is set up.
结合原有的混凝土疲劳损伤模型，建立了预应力钢纤维混凝土板的疲劳损伤演变方程。
Although the expressional form of damage evolution equation in complicated stress condition is the same as that in simple load condition, the influence factors are different of the damage parameters.
复杂应力条件下的黄土损伤演化方程的表现形式与简单加载条件下的完全相同，区别只是在于损伤参量的影响因素不同。
The theoretical model and the constitutive equation with the response of both tension and compression for elastic brittle damage evolution taken into account are derived.
提出了考虑拉压响应的弹脆性损伤演变的理论模型与本构方程。
A new fatigue damage evolution equation was proposed according to the fatigue accumulative damage theory, the effectiveness of which was verified by experimental results.
根据疲劳累积损伤理论，提出了新形式的疲劳损伤演化方程，与试验结果对比，该方程能较好地反映新材料的损伤演化规律。
A method for discreted description of damage mechanism is given, and the evolution equation of discreted orientation density of cracks is obtained.
文中给出了损伤机构离散化的方法，并对方位密度给出了演化方程。
After defining a logarithm damage variable and effective stress, we introduce a damage evolution equation at crack tip bytaking into account the physical mechanism of the development ofcavities.
本文在定义对数损伤变量和相应的有效应力之后，引入了一种考虑材料内部空穴演变的裂尖损伤演变方程。
The rules of the solution mining subsidence are got. The evolution rules and equation of damage in overburden are got.
获得了岩盐水溶开采沉陷的一般规律，得到了岩层宏观损伤演化规律及方程。
Thus, in the framework of generalized standard materials, the damage evolution equation for isotropic elastic damaged materials has been derived.
在广义标准材料理论框架下，利用本构泛函展开法，推导出弹性各向同性损伤演化方程的一般形式。
The anisotropic damage evolution law is obtained by the virtue of energy equilibrium and an equivalent singe variable equation.
各向异性的伤演规律可由能量平衡及当量单参数方程所确定。
And based on the aim of the application of engineering, the pre peak rock 3 parts damage evolution equation and constitutive model are given.
从工程应用出发，给出了峰前分段岩石损伤演化方程及本构关系。
The variation rule of the damage variable and the coupled variable, damage energy dissipation rate, can be described on macro aspect by the damage evolution equation.
采用损伤演化方程可以从宏观上描述损伤变量以及与其相伴的广义热力学力——损伤能量释放率的变化规律。
The variation rule of the damage variable and the coupled variable, damage energy dissipation rate, can be described on macro aspect by the damage evolution equation.
采用损伤演化方程可以从宏观上描述损伤变量以及与其相伴的广义热力学力——损伤能量释放率的变化规律。
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