| 1. | The whole deformation process of the bird bodies and windshield glass are recorded using the high - speed camera and the vidicon
采用高速摄影和高速摄像拍摄了鸟体和风挡玻璃的变形全过程。 |
| 2. | The deformation and failure mechanism of circular arc windshield glass is discussed . the possible location where failure can carry out is given
讨论了圆弧风挡玻璃被鸟冲击变形破坏的机理，同时给出了圆弧风挡在经受鸟体撞击时发生破坏的可能位置。 |
| 3. | It is found from strain measurement results that the magnitude of strain along the direction of the symmetry line of windshield glass reverses to show re - striking in impact
电测结果表明，沿圆弧风挡玻璃对称线方向的应变发生反向，这表明鸟体可能与风挡玻璃发生二次撞击。 |
| 4. | The displacement history curves of different points in the symmetry center line of windshield glass and the strain history curves of many points on the surface of windshield glass are obtained
对国产和进口两种风挡玻璃进行了鸟撞实验。实验中得到风挡玻璃对称中心线上多点位移时间曲线及风挡玻璃表面的应变时间曲线。 |
| 5. | It is observed from the result of test that the bird bodies basically show liquid characteristics in the process of impact and that the relative pa rts of the plane affect the dynamic response ' of windshield glass
从高速摄像和摄像结果中发现，鸟体在撞击过程中基本表现出流体特性，飞机的附件对鸟撞试验有较大的影响。 |
| 6. | A finite element model including full - scale circular arc windshield glass and the relative parts of the plane is established using ls - dyna3d v . 950 code in the computer simulation and is validated using the result from the test
数值模拟中，建立了包括飞机相关部件的全尺寸有限元模型。鸟体采用ale描述。有限元模型采用ls - dyna进行了分析。 |
| 7. | Therefore , they are widely used in cars windshield glass , lighting accessories , oven front glass , modern furniture glass and different kind of appliances , etc . in processing , the manufacturing temperature is near the soften degree , finally formed in fast wind cooling
这些强化玻璃的处理过程是在接近软化的温度下制造，最后在风中急冷而形成。金迪所制造的强化玻璃更符合国际认可品质标准，安全可靠美观实用。 |
| 8. | The second part concerns about the fracture analysis of cracked metalic structures . the last part investigates the behavior of impact dents on aircraft windshield glass and their possibility to be analyzed using fracture mechanics . in chapter 1 , a review is made to the resent developments of cumulative damage models and fatigue life prediction methodology of composite laminates
本论文研究飞机结构疲劳和损伤容限分析中的若干问题，按研究的对象(材料、结构)可以大致划分为三个组成部分：复合材料层压结构疲劳分析，第一章第三章；金属结构断裂分析，第四、五章；座舱盖玻璃撞击损伤的断裂分析，第六章。 |
