| 1. | Numerical calculation of damage accumulation and bearing strength experimental verification for composite single bolted joint 复合材料层合板机械连接结构累积损伤模型和挤压性能试验研究 |
| 2. | Seafood mercury weaken sperm activity , long - term health damage accumulation in the body , the man eat seafood easy to infertility 海产水银削弱精子活动能力,长期堆积在体内损健康,男子嗜吃海鲜易不育。 |
| 3. | Structures are always subjected to various adverse factors during its long - time service , such as fatigue , environmental corrosion , material aging , etc . these factors will bring to structural damage accumulation 在结构长期服役期间,疲劳、环境腐蚀和材料老化等因素的作用会引起结构损伤的累积。 |
| 4. | The full - coupled method developed with damage mechanics and the finite element analysis is performed on calculation of fatigue damage accumulation of the critical welded components in the tsing ma bridge 这种偏于安全的误差,用于结构的疲劳设计是合适的,但对于在役结构疲劳损伤累积的准确评估却是不利的。 |
| 5. | At the macroscopic scale , it can be considered that we are in presence of a damage accumulation via matrix microcracking coupled with interfacial sliding phenomenon which may be settled according to a slow crack growth mechanism 在宏观层次上,可以把通过基体微裂纹和界面滑动所形成的损伤积累看作是一种裂纹的缓慢生长过程。 |
| 6. | The topic of damage accumulation and life - time estimation of steel in fatigue is one of the important researching directions for solid mechanics now , there are many problems needed to be solved in theory or in experiment 损伤累积与失效预测是当前固体力学学科研究的一个重要方向,无论在理论分析还是实验研究,都有许多问题有待于解决。 |
| 7. | 6 . according to palmgren - miner ? theories of fatigue damage accumulation and the analysis of the dynamic strength and dynamic deformation of reinforced earth retaining wall , the fatigue damage of the reinforced earth retaining wall has been analyzed and its measurement standard has been concluded for the first time 6 、通过对加筋土动强度与动变形分析,根据palmgfen miner疲劳损伤积累理论,首次对加筋土挡土结构进行了疲劳损伤分析,得出了疲劳损伤的衡量准则。 |
| 8. | The mechanism of collapse of reinforced concrete structure is discussed . it is believed the collapse of reinforced concrete framework is a process in which the structure undergoes damage and the damage accumulate ceaselessly . so through the study of damage accumulation of framework element and whole structure in earthquake can learn its collapsing process 本文对钢筋混凝土结构地震倒塌机制的问题进行了论述,认为钢筋混凝土框架结构的倒塌破坏过程是一个结构发生损伤并不断积累演化的过程,因此通过研究框架构件和整体结构在地震力作用下的损伤积累来揭示其倒塌破坏的过程。 |
| 9. | The random analysis of structure under fatigue loading , the statistic finite element method ( sfem ) for fatigue reliability , random fatigue damage accumulation theory and fatigue reliability of structure system were studied in this paper with regard to the metal structure of engineering machine 本文以工程机械金属结构为对象,探讨了疲劳载荷下的随机结构分析、随机有限元计算构件疲劳可靠度的方法、随机疲劳累积损伤理论、系统疲劳可靠性分析。主要工作有: 1 |
| 10. | Undoubtedly , deterioration and damage accumulation occur in high temperature and high pressure . with the consumption of their use , the failure accidents occur more frequently , which will bring threatening to the life of people and the poverties of enterprise . so the failure analysis and the residual life assessment of the main steam pipe become more and more urgent and important 以蠕变性能作为设计指标的主蒸汽管道是发电厂的关键部件,由于长期在高温高压的恶劣工况下运行,容易发生材质老化和损伤积累,突发性事故也会频频发生,给企业职工的生命安全和国家财产带来严重威胁,因此对主蒸汽管道进行失效分析与寿命预测尤为迫切和重要。 |