endurance limit

简明释义

疲劳极限

英英释义

例句

1.The endurance limit of this alloy is significantly higher than that of traditional steel.

这种合金的耐久极限明显高于传统钢材。

2.Testing the endurance limit helps predict the lifespan of mechanical components.

测试耐久极限有助于预测机械部件的使用寿命。

3.Understanding the endurance limit of materials is crucial in aerospace engineering.

理解材料的耐久极限在航空航天工程中至关重要。

4.The research focused on improving the endurance limit of composite materials for automotive applications.

研究集中在提高汽车应用中复合材料的耐久极限。

5.The engineer calculated the endurance limit to ensure the bridge can withstand repeated loads without failure.

工程师计算了耐久极限以确保桥梁能够承受重复载荷而不发生故障。

作文

The concept of endurance limit is fundamental in the field of material science and engineering. It refers to the maximum stress level that a material can withstand for an infinite number of cycles without experiencing fatigue failure. Understanding this concept is crucial for engineers and designers as they work to create safe and reliable structures and components. In practical terms, the endurance limit helps determine how materials will perform under repeated loading conditions, which is common in many applications such as bridges, aircraft, and machinery. When materials are subjected to cyclic loading, they can develop microscopic cracks that grow over time. If the applied stress exceeds the endurance limit, these cracks may propagate rapidly, leading to catastrophic failure. Therefore, it is essential to select materials that have a suitable endurance limit for specific applications. For instance, steel typically has a well-defined endurance limit, while aluminum does not exhibit a clear limit, making it more challenging to predict its fatigue behavior.In testing for endurance limit, engineers often perform fatigue tests where samples are subjected to varying levels of stress until failure occurs. The results of these tests allow engineers to establish a safe working limit for the material. This information is then used in design calculations to ensure that structures will not fail under expected service conditions. Moreover, factors such as surface finish, temperature, and environment can influence the endurance limit, making it important to consider these variables during the design process.In conclusion, the endurance limit is a critical parameter in materials engineering that informs the design and safety of various structures and components. By understanding and applying this concept, engineers can mitigate the risks associated with material fatigue, ultimately leading to safer and more durable products. As technology advances, ongoing research into the endurance limit of new materials will continue to enhance our ability to create innovative and resilient designs. This understanding not only protects lives but also contributes to the efficiency and sustainability of engineering practices in our modern world.

“耐久极限”这一概念在材料科学和工程领域中至关重要。它指的是材料在无限循环中能够承受而不发生疲劳失效的最大应力水平。理解这一概念对工程师和设计师而言至关重要，因为他们需要创造安全可靠的结构和组件。在实际应用中，“耐久极限”有助于确定材料在重复加载条件下的表现，这在许多应用中是常见的，例如桥梁、飞机和机械设备。当材料受到循环加载时，它们可能会产生微观裂纹，这些裂纹会随着时间的推移而增长。如果施加的应力超过了“耐久极限”，这些裂纹可能会迅速扩展，导致灾难性故障。因此，选择具有合适“耐久极限”的材料对于特定应用至关重要。例如，钢材通常具有明确的“耐久极限”，而铝材则没有明显的极限，这使得预测其疲劳行为变得更加困难。在测试“耐久极限”时，工程师通常会进行疲劳测试，将样本施加不同水平的应力，直到发生失效。这些测试的结果使工程师能够为材料建立安全的工作限制。然后，这些信息用于设计计算，以确保结构在预期的服务条件下不会失效。此外，表面光洁度、温度和环境等因素也会影响“耐久极限”，因此在设计过程中考虑这些变量显得尤为重要。总之，“耐久极限”是材料工程中的一个关键参数，它为各种结构和组件的设计和安全提供了依据。通过理解和应用这一概念，工程师可以降低与材料疲劳相关的风险，从而最终导致更安全、更耐用的产品。随着技术的进步，对新材料“耐久极限”的持续研究将进一步增强我们创造创新和韧性设计的能力。这种理解不仅保护生命，也有助于提高现代世界工程实践的效率和可持续性。