混凝土损伤模型。
在试验的基础上对混凝土损伤机理进行了分析，由此提出了混凝土温度损伤模型。
The damage principle of the concrete is analyzed according to the experiments, and the damage temperature model is put forward.
根据水泥混凝土材料的内部微结构，运用损伤力学知识，建立了水泥混凝土损伤模型。
According to the inner tiny structure of cement concrete, the damage model of cement concrete is established by using damage mechanics.
文摘：将分形理论应用于混凝土损伤断裂，讨论了损伤断裂面的维数公式并进行了实际计算。
Abstract: in this paper, fractal theory is applied in the loss faulting of concrete. The dimension formula of loss faulting volume is probed and calculated.
提出了三种混凝土损伤定量计算的方法，同时还得到了推算无损混凝土弹性模量和强度的方法。
This paper presents three quantitative analyses of concrete damage and the method how to calculate the undamaged elastic modulus and undamaged strength.
本文首先介绍了损伤力学的基本内容以及混凝土损伤理论研究现状，比较了各种损伤演化模型。
This paper introduces the basic theory of damage Mechanics, especially in the part of concrete damage research and compares several kinds of damage evolvement models firstly.
同时通过实验与理论分析，总结了聚丙烯纤维、钢纤维和膨胀剂对混凝土损伤抑制的复合效应。
Through experiment and theoretical analysis, this paper summed up damage resistance synergetic effect of polypropylene fiber, steel fiber and expanding agent.
本论文立足于对混凝土材料特性的认识，提出一个进行混凝土损伤与断裂过程模拟的细观数值模型。
This paper is based on the understand of the concrete material. The mathematic model to study the process of concretes damage and fracture is being put forward.
这说明本文得到的关系式可以较好的评价火灾后混凝土损伤，亦可作为火灾现场得出快速残余强度的依据。
It indicated the relationship may be a good method for fire value, also may be a basis to obtain the fast residual strength as the scene of fire.
通过截面平衡分析，建立了混凝土损伤指标与截面应变关系的一般公式，并得到截面广义力—位移关系曲线。
The general relation between the damage and strain of the beam cross-section is set up and the stress-strain curves of cross-section are made, through the analysis on cross-section balance.
试验结果表明，本文所选择的混凝土损伤演变模型可以较好的表征该条件下上述四种混凝土的冻融损伤演变过程。
The results show that the model of damage evolution is suitable for that four types of concrete of our test conditions, and it can characterize their freezing-thawing damage evolution process better.
实验研究表明，时间相移及空间载波变换数字电子散斑干涉法是进行混凝土损伤断裂特性研究的一种有效实验方法。
The experimental researches show that the time-lapse and spatial carrier transformation DSPI is an effective experimental method for carrying out researches on the concrete fracture characteristics.
基于混凝土损伤理论，在试验得到的应力—应变曲线的基础上，分析了纤维含量和应变率对材料强度及材料力学行为的影响。
Based on damage theory, the stress-strain curve got from experiment is analyzed in order to study the effect of material strength and mechanical properties by fiber content.
本文的主要工作如下：(1)在现有混凝土损伤理论的基础上重点介绍了介绍ABAQUS有限元软件的混凝土损伤塑性模型。
The main work of this paper is as follows: (1) Highlights the damaged concrete plasticity model of the finite element software ABAQUS on the basis of concrete damage in the existing theory.
介绍了几种较为成熟的混凝土损伤模型，在传统非局部损伤模型的基础之上引入了光滑权函数构造了一种新型的非局部损伤模型。
This paper introduces several kind of the damage model of concrete and presents a new kind of non-local damage model by adding the smooth weight function on the classical non-local damage model.
因此，在损伤的预应力钢筋混凝土结构中波传播理论的研究具有广泛的应用前景。
There are extensive prospects of application for the wave propagation theory in the prestressed and reinforced concrete structures.
本文从微观统计的损伤理论出发，建立了腐蚀混凝土单轴受压本构模型，与试验结果较符合。
Beginning with the damage theory of micro-statistics, the constitutive model of corroded concrete under uniaxial compression is established which is proved by the experimental outcomes.
从而提出，可根据混凝上受载后的声发射特征来评价和估计混凝土材料的损伤程度。
Therefore, it is proPOsed that the damage degree of concrete can be evaluated and estimated by using AE characteristics.
介绍一种针对专门用于火灾损伤后混凝土强度测试的智能超声诊断系统的原理和硬件设计。
The principle and hardware design of an intelligent diagnosis system used in the testing of concrete intensity damaged after fire are introduced.
结果表明，冻融损伤对混凝土氯离子扩散性能的影响是显著的。
The results show it is notable that the damage affects on the chloride diffusion of concrete.
普通钢筋混凝土梁的损伤分析。
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。
Based on the fatigue cumulative damage models, a damage evolution equation for flexural fatigue of SFRPC slabs is set up.
最后通过对各地震损伤模型的比较分，提出了高强混凝土框架柱的地震损伤模型。
Finally, by analyzing all sorts of seismic damage models comparatively, the seismic damage model of high strength concrete frame columns is put forward.
衬砌混凝土的局部损伤特征受火灾发生时的火源、燃料供给、受火区段的地形、通风等因素的影响。
It is concluded that the damage features of the lining concrete are related to fire source, fuel supplying mode, landscape and ventilation condition of the conflagration.
对基于碳化损伤的混凝土工业厂房耐久性评估方法进行了研究。
Durability evaluation method of industrial concrete mill buildings based on carbonation damage is studied.
通过合理定义损伤变量，由试验测定了新材料和钢纤维增强混凝土的疲劳损伤及其演化规律；
Then, by reasonably defining damage factors, the fatigue damages and the corresponding evolution principles of the new material and the steel fiber-reinforced concrete were measured by experiments.
潮湿环境有利于高温损伤混凝土强度的恢复。
The humid environment is advantageous to the strength recovery of concrete damaged by high temperature.
该模型综合了变形、能量累积以及荷载历程对预应力混凝土构件损伤-破坏的影响，对不同的地震模式有更好的适用性。
This model synthesizes the effect of distortion, energy accumulation, and loading history to damage-failure of prestressed concrete member, thus may be applied to different earthquake patterns.
该模型综合了变形、能量累积以及荷载历程对预应力混凝土构件损伤-破坏的影响，对不同的地震模式有更好的适用性。
This model synthesizes the effect of distortion, energy accumulation, and loading history to damage-failure of prestressed concrete member, thus may be applied to different earthquake patterns.
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