threshold region meaning in English
阈区
Examples
- A model based on the concept of the hypothetical fcp element is proposed to give the physical explanations to the existence of fcp threshold and why the fcp rate in near - threshold region coul
提出了近门槛区内“裂纹扩展基元模型” ，用于定性地说明何以近门槛区内裂纹扩展速率低于原子间距，进而解释了裂纹扩展门槛值存在的物理本质。 - Test results and analysis show that the above equation can be applied to represent the fcp test results of various materials in the near - threshold region , the intermediate region of stable crack propagation and the rapid crack propagation region measured at different stress ratios
实验结果和分析证明，该式能用于描述具有各种不同特性材料的包含近门槛区、中部稳态扩展区和快速扩展区的整个疲劳裂纹扩展曲线。 - Research on the expression of fcp rate had started more than 50 years ago . more than 100 formulas for fcp rate were developed ; among whom formulas describing the whole fcp curve , including the near - threshold region , the intermediate stable crack propagation region and the rapid crack propagation region , can be easily found
对疲劳裂纹扩展速率表达式的研究已有50余年的历史，提出的裂纹扩展模型和表达式已达100多个；其中也有不少能描述包含近门槛区、中部稳态扩展区和快速扩展区等三个区在内的整个疲劳裂纹扩展曲线的表达式。 - Main conclusions or / and creative work are given in following . all materials have same fcp pattern , i . e . , the whole fcp curve comprises the near - threshold region , the intermediate region of stable crack propagation and the rapid crack propagation region and with s shape , though the materials have different micro - mechanisms of fcp
本文的主要结论和创新点有：首先，认为所有固体材料均具有相同的疲劳裂纹扩展宏观规律，即完整的疲劳裂纹扩展曲线都由近门槛区、中部稳定扩展区和快速扩展区所构成，曲线具有相似的s形，尽管不同特性的材料具有不同的疲劳裂纹扩展的微观机制。 - Based on the analysis and summation , a new formula for fcp is developed as eq . ( 3 . 23 ) or eq . ( 6 . 5 ) , and can be applied to describe the fcp pattern in all three fcp regions , including the fcp in the near - threshold region , the intermediate region of stable crack propagation and the rapid crack propagation region
在上述总结和分析的基础上，给出了描述三个区的疲劳裂纹扩展总体规律的公式( 3 . 23 )或式( 6 . 5 ) ，即上述表达式左、右两端量纲一致，式中的各个参量物理意义明确。