| 1. | Impact damage of farm transporter panel against the driver ' s head 农用运输车仪表板对头部撞击损伤分析 |
| 2. | A method to determine the parameters of the model for concrete impact and damage 混凝土撞击损伤模型参数的确定方法 |
| 3. | Effects of impact - induced damage on deflagration - to - detonationtransition of high - energy propellants 推进剂的撞击损伤状态对其燃烧转爆轰的影响 |
| 4. | Experimental investigation of bumper thickness effect on damage of aluminum dual - wall structure by hypervelocity impact 铝双层板结构的前板厚度对撞击损伤影响的实验研究 |
| 5. | An losipescu - type of fixture , which had been previously used for the static shear strength tests of unidirectional laminates or metal materials , was proved useful for the shear static and fatigue tests of multidirectional laminates ( 6 )进行mdyb - 3座舱盖有机玻璃撞击损伤剩余强度和疲劳裂纹扩展试验,发现撞击损伤引致的疲劳裂纹的扩展规律与理想的表面裂纹明显不同。 |
| 6. | 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。 |
| 7. | The cumulative damage modes and their distribution regions on 7t / 4 quasi - isotropic laminates were reasonably simulated and the predicted fatigue lives agree well with the test results . residual strength evaluation is playing a significant role in damage tolerance analysis of structures . chapter 4 describes a simple procedure for the evaluation of residual strength of metallic structures with cracks developed b 提出按剩余西北工业大学博士学位论文:飞机结构疲劳和断裂分析中若干问题的研究强度等效和按疲劳寿命等效两种途径将撞击损伤当量化为表面裂纹,并根据有限的试验结果进行了尝试,得到了一些初步结果。 |