损伤力学
- 网络damage mechanics;Continuum Damage Mechanics;CDM
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推导材料不同Kt中值疲劳曲线的损伤力学方法
The mean fatigue life curves for different coefficients of stress concentration based on damage mechanics
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从细观损伤力学理论出发,利用CT识别先进的试验技术研究岩石在冻结融化过程中,水分的迁移,冰的形成,内部细观损伤扩展机理及相应损伤结构的变化。
Based on the damage mechanics theory , during the freezing and thawing , the CT measurement technology is used to observe the water transference , ice formation , inner microdamage propagation principle and the corresponding damage structure variability .
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岩石细观损伤力学特性及本构关系的CT识别
CT identification on the meso damage mechanic characteristics and constitutive relation of rock
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将先进的CT识别技术应用于岩石细观损伤力学特性研究。
The advanced Computerized Tomography ( CT ) technique is used to study the meso damage mechanic characteristics of rock in this paper .
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采用连续损伤力学模型对YB3有机玻璃在常温下的疲劳寿命进行预测。
Fatigue life of the YB-3 polymethyl methacrylate at room temperature is predicted by the continuum damage mechanics model .
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损伤力学在核级管道LBB分析中的应用
Application of Damage Mechanics in Nuclear Piping LBB Analysis
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利用连续介质损伤力学方法,通过岩石微元体强度的Weibull统计分布和库仑准则假定,建立了一个简明的岩石三维各向同性损伤模型及弹脆性本构方程。
A single , effective damage model and constitutive equation , which based on the assumption of rock microelement strength Weibull distribution and Coulomb criterion , were presented through Continuum Damage Mechanics method .
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结合统计理论(weibull分布)和损伤力学的原理建立受火后混凝土受拉的破坏模型,理论上推导混凝土受拉破坏的应力-应变关系。
Based on the theories of statistic and damage mechanic , the tensile failure of fire-damaged concrete is simulated by model of spring , whose failure is believed to be coincident with the probability distribution of " weibull " .
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基于损伤力学的基本理论,给出了Al2O3陶瓷的一维损伤型线性弹脆性本构模型。
Based on the theory of damage mechanics , a uniaxial nonlinear elastic-brittle damage-modified constitutive model is proposed here . The parameters of this model for the Al_ ( 2 ) O_ ( 3 ) ceramic were obtained by fitting the SHPB test data .
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基于VonKarman薄板理论、Boltzman叠加原理和连续损伤力学,建立了以中面位移表示的具损伤粘弹性薄板的非线性动力学方程。
Based on Von Karman thin plate theory , Boltzman superposition principle and continuum damage mechanics , the nonlinear dynamics equations of viscoelastic thin plate with damage were derived and denoted by the middle-plane displacements .
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通过对TA15钛合金韧性损伤力学行为的数值模拟研究,从材料临界损伤因子角度探讨了TA15钛合金的加工工艺性能。
The hot process performance of it was discussed in terms of material critical damage factor by study on the mechanical behavior of ductile damage with numerical simulation .
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在A-B模型的基础上,通过球腔膨胀模型和损伤力学,建立了一种新的侵彻贯穿有限厚靶板的工程分析模型,描述了侵彻贯穿的过程。
In this paper , we developed a model that can describe the process of projectile with spherical nose penetrating limited thickness targets . Penetration force can be calculated on the basis of the theory of dynamic spherical cavity expansion approximation .
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本文主要研究了典型复合材料飞机结构修理设计的分析方法。首先,本文建立了基于连续介质损伤力学(CDM)的复合材料层合板渐进损伤分析三维有限元模型。
This paper mainly studied the analysis me-thod of the typical aircraft composite structure repair . Firstly , a three-dimensional ( 3D ) finite element model ( FEM ) of composite laminates progressive damage analysis ( PDA ) has been established based on continuum damage mechanism ( CDM ) .
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运用材料破坏过程分析MFPA2D系统,从细观力学和损伤力学角度,研究了布孔方式对孔洞材料宏观力学性能以及破坏机理的影响。
Material Failure Process Analysis ( MFPA ~ ( 2D )) code adopted to discuss the influence of hole distribution on the macroscopic mechanical behavior and failure mechanism of perforated materials from the viewpoints of microscopic mechanics and damage mechanics .
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提出了基于弹性损伤力学的本构关系,以最大拉应力准则和摩尔库仑准则作为损伤发生的阈值,并借助复合材料破坏过程分析(MFPA)程序进行受力分析。
The constitutive equation based on elastic damage mechanics is put forward , using the max tensile-strain criterion and Mohr-Coulomb criterion as the damage threshold . At the same time , a stress analysis is carried out , using the Material Failure Process Analysis ( MFPA2D ) .
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基于连续损伤力学理论的陶瓷材料蠕变寿命预测模型
A Critical Strain Model for Predicting Creep Damage Life of Ceramics
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用连续损伤力学建立单次破碎后块度分布理论基础
Theory of fragment distribution in single fracture with continuous damage mechanics
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损伤力学方法在汽轮机高温蠕变损伤分析中的应用
Application of Damage Mechanics on High Temperature Creep Analysis of Turbine
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损伤力学理论在岩石边坡工程中的应用研究
Application of damage mechanics to the study of rock slope engineering
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人体头部损伤力学中的稳定性研究的数学模型
Investigation of the stability on the mechanics of human head injury
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损伤力学方法预估构件的疲劳裂纹形成寿命
Predicting Fatigue Crack Initiation Lives of Compenents by Using Damage Mechanics
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盾构推进的损伤力学分析及现场试验研究
Field Network Damage Mechanics Analysis and Experimental Study on Shield Tunneling
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地下水对泥板岩强度软化的损伤力学分析
Analysis on strength softening of argillite under groundwater by damage mechanics
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基于损伤力学的岩体宏观力学参数研究
The Parameter Study of Rock Mass Macro-Mechanics Based on Damage Mechanics
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孔隙率对砂岩强度影响的损伤力学研究
Study on Damage Mechanics of Effect of Porosity on Sandstone Strength
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岩体弹塑粘损伤力学模型及其工程应用
Elastic-plastic-viscous damage model of rock mass and its application to engineering
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真三轴条件下的岩石细观损伤力学模型
A Micromechanical Damage Model for Rocks Subjected to True Triaxial Stresses
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利用损伤力学模型研究地震前兆现象
Use damage rheology model research on the precursor of earthquakes ′
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确定材料概率疲劳曲线的损伤力学方法
Method of damage mechanics to determine the p-S-N curve of material
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基于集中损伤力学的钢筋混凝土框架结构非线性分析
Nonlinear analysis of reinforced concrete frames based on lumped damage mechanics