| 1. | In the tie girder boxes crack growth was detected near the crack tip .
在系杆箱型梁中裂纹尖端附近检测到裂纹的扩展。 |
| 2. | And introduces the method of reliability into the inspection of flaw , in order to reveal the phenomenon of flaw extend
并将可靠性引入到裂纹巡检上来，则主要是为了更加确切地反映裂纹的扩展情况。 |
| 3. | The fining grains of al - l % si could accelerate the fatigue crack propagation from the near threshold zone to paris zone
随着疲劳裂纹扩展速率从近门槛值区向paris区过渡，细小的a ( a1 )晶粒会加速疲劳裂纹的扩展。 |
| 4. | How to calculate the velocity of crack growth and how to get the life time of a structure with a nonlinear viscoelastic crack are attractive problems
如何预测裂纹的扩展速度、预测材料的寿命成为引起广泛关注的问题。 |
| 5. | In order to study the crack growth behavior in ferroelectric ceramics when an electric field is applied , a non - equilibrium statistical theory is used in this paper
摘要运用非平衡态统计断裂理论对电场中的中心穿透裂纹的扩展问题进行研究。 |
| 6. | Calculating example shows that the fracture parameters of viscoelastic interface crack have a time correlation behave , its extend is a kind of delay instability
计算表明,粘弹性界面裂纹的断裂参量表现为时间相依性,粘弹性界面裂纹的扩展一般为延迟失稳。 |
| 7. | The size and shape of the crack front were updated using the result of finite element program , and then the crack propagation was simulated by moving the node
利用有限元计算的结果来自动更新裂纹前沿的尺寸和几何形状，并使用节点移动法来模拟裂纹的扩展过程。 |
| 8. | And it is concluded that the crack propagates slowly under a negative applied electric field , whereas the crack growth rate is enhanced under a positive applied electric field
从理论上得到与实验结果相一致的结论：负电场阻碍裂纹的扩展而正电场促进裂纹的扩展。 |
| 9. | It shows that damage cracks was borne by the prefabricated crack , and the layer which has the large area of prefabricated crack is the damage area of sandstone
结果表明，含有预制裂纹的红砂岩的损伤演化和裂纹的扩展受到预制裂纹的影响，破坏裂纹从预制裂纹尖端起裂，并且最终破坏发生于含有最大预制裂纹的层面。 |
| 10. | The method of prediction is mainly basis of through collecting data to analyze based on probability and mathematics statistic or based on the expand of the microcosmic crack for some component
采用的方法主要是通过采集数据以概率和数理统计为基础进行分析预测，或者以微观裂纹的扩展为基础对某个元件进行预测。 |
