cracking initiation造句

• The measurement of crack initiation in three - point bending fatigue of 40cr steel
  钢疲劳裂纹萌生寿命的测量
• Relationship between tempering temperature and crack initiation life for 40cr steel
  钢低周冲击疲劳裂纹扩展行为
• On crack initiation within large blocks of concrete and its drevention and control
  大体积砼裂缝产生的原因及防治
• The fatigue crack initiation life of x60 pipeline steel after pre - tension deformation
  60管线钢疲劳裂纹形成寿命的影响
• A simple method for determining crack initiation and propagation in the dynamic splitting test
  确定动态劈裂裂纹起裂和扩展特性的简便方法
• Progress in study on crack initiation in epoxy resin sealing compounds at low temperature and its measures
  环氧灌封料低温开裂问题及对策研究进展
• Testing method for crack initiation and propagation rate in steam turbine metals at elevates temperature
  汽轮机.金属高温裂纹开裂和扩展速率试验方法
• Failure state random function method for digital simulation of turbine disc crack initiation and propagation
  涡轮盘裂纹萌生扩展数字仿真的故障状态随机函数法
• Biaxial analysis was used to get the multiaxial information , and fatigue calculation of multiaxial crack initiation was conducted
  寿命预测采用多轴裂纹萌生疲劳分析，其中部件的多轴特性通过二轴分析获得。
• Sem investigation shows that all the crack initiations can be traced back to the lateral sides of the sample , and the crack propagates along the direction normal to the loading axis
  Zr一4合金的低周疲劳断口上，所有裂纹都起源于试样最窄处的侧表面，并逐渐向内部扩展。
• According to the observed results near the fracture surfaces , the orientations of the fatigue crack initiation and propagation were investigated to study the mechanism of multiaxial fatigue crack propagation
  根据薄壁管拉扭复合载试件断口附近表面观测结果，统计其裂纹扩展的位向，研究多轴疲劳裂纹萌生及扩展机理。
• It is very important to study the correlation of cyclical strain on the side of hole with fatigue life cycle for understanding the material damage and micro - crack initiation , and for preventing macro - crack initiation and propagation
  研究孔边循环应变与疲劳循环次数的相关性，对于研究材料损伤及微裂纹的产生，预防宏观裂纹的产生及扩展具有十分重要的意义。
• Using acoustic emission in fatigue test and intensity research of helicopter part , the fatigue crack initiation , location and crack growth can be found . it is an effective method to discover the position and degree of damage in the materials
  在直升机部件的疲劳试验及强度研究中，利用声发射技术监测可以更早发现裂纹的萌生、位置及扩展情况，能有效地发现损伤部位和损伤程度。
• Energy estimating approach of fatigue crack initiation life for welded steel structures is obtained by using molski - glinka energy density equation , introducing the worst - case fatigue notch factor , and considering the effects of residual stress on fatigue
  本文采用应力应变能密度的molski - glinka方程，建立了一种预测焊接钢结构疲劳裂纹形成寿命的能量方法。该方法引入了极值疲劳切口系数，并考虑了焊接残余应力对裂纹形成寿命的影响。
• In engineering applications , the fatigue life of structure members is divided into the fatigue crack initiation ( fci ) life and the fatigue crack propagation ( fcp ) life to be predicted , and then the fatigue life can be obtained by adding the fci life to the fcp life
  工程中疲劳寿命估算，分为裂纹起始寿命和裂纹扩展寿命两阶段分别进行估算，然后求和即得总寿命。估算裂纹起始寿命和裂纹扩展寿命，需要有好的裂纹起始寿命表达式和裂纹扩展速率表达式。
• 3 . studying on prediction methods of the initiation life of aero - gear using shakedown analysis methods in order to directly consider in a quantitative way the details of stress - inelastic strain responses , residual stress and residual strain computations , fatigue crack initiation life was evaluated in aero - gear by using th
  利用chaboche的材料模型，研究了航空齿轮韧性材料在弹、塑性安定下的轮齿接触疲劳裂纹萌生准则，该研究结果与相关的齿轮实验结果比较分析表明：塑性安定下的疲劳裂纹萌生预测方法预测航空齿轮的萌生寿命是较安全的。