| 1. | Magnetic testing method of residual stress distribution by geomagnetic excitation
地磁场激励下残余应力分布的磁检测方法 |
| 2. | Calculation method of predictive model for residual stress distribution in optical thin films
光学薄膜残余应力分配预测模型计算方法研究 |
| 3. | Influence of surface residual stress distribution on mechanical properties of cemented carbide treated by wet blasting
8合金表面残余应力分析及对性能的影响 |
| 4. | If low residual stress and better residual stress distribution map are expected , a12o3 ceramic substrate is a better choice compared to fr4
在降温过程中，剪切应力的绝对值逐渐从一个较高水平逐渐开始减小，并趋于平衡。 |
| 5. | If low residual stress and better residual stress distribution map are expected , adhesives with low cte is preferred , which could be a criteria to select organic adhesives
使用热膨胀系数较小的有机粘合剂粘贴芯片时，可获得较低的残余应力和相对优越的应力分布。该规律可以作为选择有机粘合剂时的参照。 |
| 6. | Finally , this paper calculates the residual stresses distribution of multilayered graded coating structures with the theoretical model built in the paper and the elastic model , and it discusses the influences of material ' s plasticity to the thermal stresses of the graded coating
最后，本文分别用在文中建立的理论模型和完全弹性模型对多层梯度涂层结构的残余应力分布进行了计算，讨论了材料的塑性行为对梯度涂层热应力的影响。 |
| 7. | In this paper , a novel whole - field residual stress measurement technique is developed using three - dimensional moire interferometer and hole - drilling method coupled with finite element method . the technique is successfully applied to thermal deformation and residual stress measurement in f - 1c , in these measurements , the thermal strain is achieved and the whole - field residual stress distribution , including the possible stress concentration , is obtained . from these measurements , we can see the thermal strain and residual stress plays a significant role in the mechanical performance of a structure and its structural integrity
本文利用新型三维光学测试系统并结合盲孔释放和有限元数值模拟的方法，对f - 1c电子封装试件进行了热变形和残余应力分析，掌握了试件的热变形特征、残余应力的分布规律及其影响作用，找到了试件失效的一些重要原因，为试件的改善提供了理论和实验支持。 |
| 8. | 1 . the measurement method of residual stress distribution in thick aluminum alloy plate is studied . aiming at the difficult problem to measure residual stress distribution in thick plate , a new method is proposed - - modified layer removal method , based on existed measurement theories and according to the characteristics of thick pre - stretched aluminum alloy plate
本文所完成的主要工作如下: 1 、铝合金预拉伸厚板内部残余应力的测试方法研究针对厚板内部残余应力测试这一技术难题,在现有测试技术研究的基础上,结合铝合金厚板的特点,提出了一种新的测试方法? ?改进剥层法。 |
