fatigue failure

简明释义

疲劳破坏

英英释义

例句

1.In the aircraft industry, fatigue failure 疲劳失效 is a critical concern for ensuring passenger safety.

在航空工业中，疲劳失效 fatigue failure 是确保乘客安全的一个关键问题。

2.The engineer explained that the bridge collapsed due to fatigue failure 疲劳失效 after years of constant traffic.

工程师解释说，这座桥因多年持续交通而发生了疲劳失效 fatigue failure，导致倒塌。

3.Manufacturers must consider fatigue failure 疲劳失效 when designing products that will undergo cyclic stress.

制造商在设计将承受循环应力的产品时，必须考虑疲劳失效 fatigue failure。

4.The research focused on preventing fatigue failure 疲劳失效 in high-performance materials used in aerospace applications.

该研究专注于防止航空航天应用中高性能材料的疲劳失效 fatigue failure。

5.After conducting tests, the team found that the metal component suffered from fatigue failure 疲劳失效 due to repetitive loading.

经过测试，团队发现金属部件因重复载荷而遭受了疲劳失效 fatigue failure。

作文

Fatigue failure is a critical concept in engineering, particularly in the fields of materials science and structural engineering. It refers to the progressive and localized structural damage that occurs when a material is subjected to cyclic loading over an extended period. Unlike sudden failure, which can happen due to excessive loads or impact, fatigue failure (疲劳破坏) develops gradually and can often go unnoticed until it reaches a critical point. This type of failure is particularly insidious because it may not present any visible signs until it is too late, leading to catastrophic consequences in some cases.Understanding fatigue failure (疲劳破坏) is essential for engineers and designers who aim to create safe and reliable structures. The process typically begins with the formation of microscopic cracks in the material, which are usually initiated at stress concentrators such as notches, holes, or surface imperfections. As the material is subjected to repeated loading cycles, these cracks grow incrementally until they reach a size that compromises the integrity of the component. Eventually, this can lead to a complete fracture of the material, resulting in structural failure.One of the most significant challenges in predicting fatigue failure (疲劳破坏) is the variability in materials and loading conditions. Different materials exhibit different fatigue properties; for instance, metals generally have well-defined fatigue limits, while polymers and composites may behave differently under cyclic loading. Engineers must consider factors such as the number of loading cycles, the magnitude of the loads, and environmental conditions when assessing the risk of fatigue failure.To mitigate the risks associated with fatigue failure (疲劳破坏), various strategies can be employed. These include improving the design to minimize stress concentrations, selecting materials with better fatigue resistance, and implementing regular inspection and maintenance programs. Non-destructive testing methods, such as ultrasonic testing or magnetic particle inspection, can also be used to detect early signs of fatigue damage before it leads to failure.In conclusion, fatigue failure (疲劳破坏) is a complex phenomenon that poses significant risks in engineering applications. By understanding the mechanisms behind fatigue failure and incorporating preventative measures into the design and maintenance of structures, engineers can enhance safety and reliability. Continuous research in materials science and engineering practices is essential to develop better predictive models and improve our ability to combat fatigue failure effectively.