| 1. | Crack tip opening displacement , ctod
裂尖张开位移 |
| 2. | The second order regressive polynomial was determined by the curve and the value of ctod was estimated furthermore
可以使一组没有规律的数据，成为一条光滑的曲线。 |
| 3. | Ctod ( crack tip opening displacement ) and j - integral are two important parameters in elastic - plastic fracture mechanics
Ctod ( cracktipopeningdisplacement )和j积分是弹塑性断裂力学研究方法中的两个重要参数。 |
| 4. | Fracture mechanics toughness tests - method for determination of kic , critical ctod and critical j values of welds in metallic materials
断裂机械韧性试验.第2部分:金属材料焊接的kdownidownc值临界ctod值和临界j值的测定方法 |
| 5. | Aiming at the deficiencies in the ctod criterion applied to analysis of critical crack propagation , a new fracture criterion is established
针对ctod准则在混凝土坝裂缝失稳扩展分析中的不足，提出了一种裂缝失稳扩展新判据。 |
| 6. | The failure of evaporate - self vessel was analyzed by means of chemical composition analysis , mechanical property testing , ctod determination , micrographic and sem inspection
摘要采用化学成分分析、力学性能试验、宏微观检验等方法对自蒸发器材质和裂纹成因进行了分析。 |
| 7. | With the method of accumulation in the gray theory , a group of experiment data of crack tip opening displacement ( ctod ) at different temperatures was accumulated two times , and then the data became a smooth curve
摘要把不同温度下的裂纹张开位移( ctod )试验数据，用灰色理论中的累加方法，进行二次累加。 |
| 8. | The test data and finite element calculation data were compared , moreover , the ctod value from the experiment and the j value from the experiment and finite element calculation were related
本文把试验数据和有限元计算数据进行了比较，并且用曲线拟合的方法，把试验ctod值和j积分值及试验ctod值和有限元计算j积分值联系起来。 |
| 9. | This paper elaborates ctod and j - integral completely beginning with the basic concept of the two parameters , moreover , it performs an easy review to the relationship between them along with the computational methods and experimental means respectively
本文从ctod和j积分的基本概念入手，对这两个参数进行了全面阐述，并且对它们之间的关系问题以及各自的计算方法和试验方法做了简单的回顾。 |
| 10. | Ctod is not a direct and close parameter for stress - strain field , so it is still difficult to define and measure ctod , but because it can be used to solve the engineering problems effectively , it is widely used in the field of engineering
Ctod不是一个直接而严密的应力、应变场参量，其确切定义和直接测量还存在困难，但由ctod法得到的一些经验公式能有效地解决工程实际问题，因而得到工程界的广泛应用。 |
