1) critical damage variable
临界损伤变量
1.
The critical damage variable is not related to the nodularity,which is about 0060～0068.
认为球墨铸铁存在损伤阈值,其大小随球化率提高而呈直线增大,但损伤阈值皆小于屈服强度;临界损伤变量与球化率的关系不大,在本试验条件下,约为0。
2) critical damage
临界损伤
1.
By the analysis and experiment measurement of damage condition of HK40 furnace tube, it was regarded that the damage material had critical damage cond ition at the tip of crack.
通过对服役材料HK40炉管损伤状态的实验测定和分析 ,认为在受损材料的裂纹前端存在临界损伤状态。
2.
The conditions and featwres of critical damage are firstly investigated for cement concrete in this paper.
本文分析了水泥混凝土临界损伤形成的条件和特点，进而，建立了重正化群模型和不动点方程；通过对损伤的规范化处理，求出了临界损伤面积密度，与经验值较吻合。
3.
In this thesis, the failure processes of concrete were studied, including the critical damage characteristics, the mechanism of damage-nucleation, and the damage modeling.
根据混凝土材料受载前初始损伤的分布、受载后微裂纹的萌生扩展及破坏后的断裂面表现出的分形特征，利用分形逾渗理论，结合混凝土损伤破坏的特点，建立了描述混凝土损伤演化的临界破坏模型，这一模型沟通了混凝土微细观损伤和宏观破坏之间的联系，并利用重正化群理论求得了混凝土损伤的临界概率、分形维数和临界损伤值。
3) critical damage value
临界损伤值
1.
Getting non linear fatigue expanding equation by continuous medium damage mechanics,considering completely couple of stress and fatigue in loaded procedure, and considering completely non-linear fatigue cumulative damage in one circle and between circles of fatigue loading,the decreasing law of remnant strength and critical damage value of metals are obtained.
用连续介质损伤力学的方法推导了非线性损伤发展方程 ,考虑了加载过程应力与损伤的完全耦合效应 ,计及了疲劳加载循环周内和循环周间损伤累计非线性效应的完全非线性疲劳累计损伤 ,由损伤发展方程确定了材料剩余强度随损伤发展的衰减规律和临界损伤
4) damage variable
损伤变量
1.
Study on triaxial meso-failure mechanism and damage variables of sandstone under chemical erosion;
化学腐蚀下砂岩三轴细观损伤机理及损伤变量分析
2.
The measurement of the high-cycle fatigue damage variable and the study of the damage evolutional law;
高周疲劳损伤变量的测试和损伤演变规律的研究
3.
The variety of the stress-displacement curve area is selected to be the damage variable instead of the plastic strain energy per cycle.
通过316L钢在420℃环境下应力控制的低周疲劳实验,基于连续损伤力学,提出一种新的低周疲劳损伤模型,采用 间接反映循环塑性应变能的应力-位移曲线面积的变化作为损伤变量,实验结果与该模型显示的疲劳损伤演变规律符合较好。
5) damage variables
损伤变量
1.
A rational method for defining damage variables in one dimension;
一维损伤变量的合理定义方法
2.
In addition,six types of damage variables are defined.
提出了损伤应力和应变门槛值的确定方法,并定义了六种损伤变量(横观各向同性有效弹性模量损伤变量、简单有效弹性模量损伤变量、密度损伤变量、体积损伤变量、体积密度损伤变量、面积密度损伤变量),在此基础上得出了硬化屈服损伤过程中的损伤演化曲线和演化方程。
3.
Assuming the function of damage variables under the force of pile soil,and selecting ideal flexible model,it derives a set of formulas of the load-subsidence behavior of pile under axial load considering damage,and analyses the influence of soil around pile and pile base and the relation between pile loading capacity and the initial stiffness of loading.
假定桩土作用损伤变量的函数以及桩破坏时的状态,并选用理想弹性模型,导出了一组确定在损伤作用下桩顶轴向荷载—沉降曲线的解析算式,并由此分析了桩周和桩底土的影响以及桩承载力与其加载初始刚度间的关系。
6) damage parameter
损伤变量
1.
It also discusses the display of damage, the damage parameters and how to measure them with direct or indirect methods of mechanics or physics.
回顾了对损伤及岩体损伤理论的发展历史，并简要介绍了岩体损伤力学的主要内容、任务和研究它的若干假设；详细讨论了什么是损伤的表征，什么样的变量可作为损伤变量及如何用直接的或间接的、力学的或物理学的方法来测量它们。
2.
Then the feasibility of rock mass quality evaluation by fractal dimension is vertified, and a fractal method of rock damage parameter is advanced.
针对节理岩体损伤张量采用统计概率模型确定存在问题，首先建立了岩体结构分维与波速的关系方程，验证了采用分维数进行岩体质量评价的可行性，然后提出了采用室内岩块波速值与岩体结构分维确定节理岩体损伤变量的分形方法。
补充资料：变量与变量值
可变的数量标志和所有的统计指标称作变量。变量的数值表现称作
变量值，即标志值或指标值。变量与变量值不能误用。
变量值，即标志值或指标值。变量与变量值不能误用。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条