损伤力学

  • 网络damage mechanics;Continuum Damage Mechanics;CDM
损伤力学损伤力学
  1. 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

  2. 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 .

  3. 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

  4. 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 .

  5. 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 .

  6. 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

  7. 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 .

  8. 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 " .

  9. 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 .

  10. 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 .

  11. 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 .

  12. 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 .

  13. 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 ) .

  14. 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 .

  15. 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 ) .

  16. 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

  17. 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

  18. 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

  19. 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

  20. 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

  21. 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

  22. 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

  23. 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

  24. 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

  25. 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

  26. 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

  27. 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

  28. 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 ′

  29. 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

  30. 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