fatigue failure

简明释义

疲劳破坏

英英释义

例句

1.The engineer explained that the bridge collapsed due to fatigue failure, which means it couldn't withstand repeated stress over time.

工程师解释说，桥梁的倒塌是由于疲劳失效，这意味着它无法承受长时间的重复应力。

2.The construction team was alerted to the risk of fatigue failure in the steel beams after years of heavy loading.

在经过多年的重载后，施工团队被提醒钢梁存在疲劳失效的风险。

3.In aircraft design, fatigue failure is a critical consideration since metal parts are subjected to numerous stress cycles during flights.

在飞机设计中，疲劳失效是一个关键考虑，因为金属部件在飞行过程中会经历多次应力循环。

4.A thorough inspection revealed that the old machinery suffered from fatigue failure, leading to unexpected downtime.

彻底检查显示，旧机器遭受了疲劳失效，导致意外停机。

5.Manufacturers must conduct tests to identify potential fatigue failure points in their products to ensure safety.

制造商必须进行测试，以识别其产品中可能出现的疲劳失效点，以确保安全。

作文

Fatigue failure is a critical concept in engineering and materials science, referring to the progressive structural damage that occurs when a material is subjected to cyclic loading over time. This phenomenon can lead to catastrophic failures, making it essential for engineers to understand its implications in design and maintenance. In essence, fatigue failure (疲劳失效) occurs when a material is repeatedly stressed below its ultimate tensile strength, eventually resulting in the formation of cracks and, ultimately, fracture. The process of fatigue failure (疲劳失效) typically begins with microscopic defects or inclusions within the material. As the material undergoes repeated loading cycles, these imperfections act as stress concentrators, exacerbating the local stress levels. Over time, this localized stress can lead to the initiation of cracks. The growth of these cracks is often slow and may not be immediately apparent, which is why fatigue failure (疲劳失效) can be particularly insidious. One of the most notable aspects of fatigue failure (疲劳失效) is that it can occur at stress levels significantly lower than the material's yield strength. For instance, a metal component in a machine may withstand high loads without any visible signs of wear during initial use. However, after many cycles of operation, the cumulative effects of the cyclic stresses can lead to unexpected failure. This is why understanding fatigue failure (疲劳失效) is crucial for industries such as aerospace, automotive, and civil engineering, where safety and reliability are paramount.To mitigate the risks associated with fatigue failure (疲劳失效), engineers employ various strategies during the design and manufacturing processes. For example, selecting materials with high fatigue resistance, implementing surface treatments to reduce stress concentrations, and designing components that minimize cyclic loads can all help prolong the life of a structure. Additionally, regular inspection and maintenance are vital to detect early signs of fatigue failure (疲劳失效) before they lead to significant damage.In conclusion, fatigue failure (疲劳失效) is a complex but crucial aspect of material behavior under cyclic loading conditions. Its understanding is fundamental for ensuring the longevity and safety of engineering structures. As technology advances and materials evolve, the study of fatigue failure (疲劳失效) will continue to be an essential area of research, helping engineers to design safer and more reliable products. By recognizing the signs of fatigue failure (疲劳失效) and implementing preventive measures, we can enhance the durability of our structures and reduce the risk of catastrophic failures.

疲劳失效是工程和材料科学中的一个关键概念，指的是当材料在一段时间内受到循环载荷时发生的逐步结构损伤。这种现象可能导致灾难性的失败，因此工程师必须理解其在设计和维护中的影响。基本上，疲劳失效发生在材料的应力水平低于其极限拉伸强度时，最终导致裂纹的形成，最终导致断裂。疲劳失效通常从材料内部的微观缺陷或夹杂物开始。当材料经历重复加载周期时，这些缺陷作为应力集中器，加剧局部应力水平。随着时间的推移，这种局部应力可能导致裂纹的产生。这些裂纹的生长往往缓慢，可能不会立即显现，这就是为什么疲劳失效可能特别隐蔽的原因。疲劳失效的一个显著特点是，它可以在远低于材料屈服强度的应力水平下发生。例如，机器中的金属部件可能在初始使用期间承受高负荷而没有任何明显的磨损迹象。然而，在许多操作周期后，循环应力的累积效应可能导致意外的失败。这就是为什么理解疲劳失效对航空航天、汽车和土木工程等行业至关重要，因为这些行业的安全性和可靠性至关重要。为了减轻与疲劳失效相关的风险，工程师在设计和制造过程中采用各种策略。例如，选择具有高疲劳抗力的材料、实施表面处理以减少应力集中，以及设计能够最小化循环载荷的部件，都可以帮助延长结构的使用寿命。此外，定期检查和维护对于在疲劳失效导致重大损坏之前检测早期迹象至关重要。总之，疲劳失效是材料在循环载荷条件下行为的复杂但重要的方面。理解这一点对确保工程结构的耐久性和安全性至关重要。随着技术的进步和材料的发展，疲劳失效的研究将继续成为一个重要的研究领域，帮助工程师设计出更安全、更可靠的产品。通过识别疲劳失效的迹象并实施预防措施，我们可以增强结构的耐用性并降低灾难性故障的风险。