cyclic loading

简明释义

交变载荷

英英释义

例句

1.Engine components are often tested under cyclic loading (循环载荷) to ensure durability.

发动机部件通常在cyclic loading（循环载荷）条件下进行测试，以确保耐用性。

2.The testing lab specializes in cyclic loading (循环载荷) experiments for various materials.

该测试实验室专门进行各种材料的cyclic loading（循环载荷）实验。

3.In structural engineering, understanding cyclic loading (循环载荷) is crucial for safety assessments.

在结构工程中，理解cyclic loading（循环载荷）对安全评估至关重要。

4.Materials subjected to cyclic loading (循环载荷) may experience fatigue failure over time.

受到cyclic loading（循环载荷）的材料可能会随着时间的推移而出现疲劳失效。

5.The bridge was designed to withstand cyclic loading (循环载荷) due to the constant traffic flow.

这座桥梁的设计考虑到了由于交通流量不断导致的cyclic loading（循环载荷）。

作文

Cyclic loading is a term used in engineering and materials science to describe the repeated application of load or stress on a material over time. This phenomenon is crucial in understanding how materials behave under various conditions, particularly in structures that experience fluctuating forces. For instance, consider a bridge that experiences traffic loads. As vehicles move across it, the bridge undergoes periods of loading and unloading, which can lead to significant wear and tear over time. Understanding cyclic loading (循环载荷) is essential for engineers to design safer and more durable structures.When materials are subjected to cyclic loading (循环载荷), they may exhibit different mechanical properties compared to static loading conditions. One of the most significant effects of cyclic loading is fatigue, which is the progressive and localized structural damage that occurs when a material is subjected to repeated cycles of stress or strain. Fatigue can lead to cracks and ultimately failure of the material, which is why it is a critical factor to consider in the design of components that will experience such conditions.In many applications, such as aerospace, automotive, and civil engineering, components are often designed with the understanding that they will face cyclic loading (循环载荷). Engineers use various methods to predict how materials will respond to these conditions. One common approach is to perform fatigue testing, where a sample material is subjected to controlled cyclic loads until failure occurs. The data obtained from these tests can then be used to develop models that predict the lifespan of materials under similar conditions.Another important aspect of cyclic loading (循环载荷) is its role in the design process. Engineers must consider the number of cycles a component will endure during its lifetime and the maximum load it will experience. This information helps in selecting appropriate materials and designing for adequate safety factors. For example, in the case of aircraft wings, engineers must ensure that they can withstand the stresses of takeoff, cruising, and landing, all of which involve cyclic loading (循环载荷).Moreover, the effects of cyclic loading (循环载荷) are not limited to just fatigue. Other phenomena, such as creep and relaxation, can also occur under cyclic conditions. Creep refers to the gradual deformation of materials under constant stress over time, while relaxation describes the decrease in stress in a material that is held at a constant strain. Both of these effects must be taken into account when analyzing the performance of materials subjected to cyclic loads.In conclusion, understanding cyclic loading (循环载荷) is vital for engineers and designers who work with materials that will face repeated stress over their lifespan. By studying the effects of cyclic loading, engineers can create safer and more reliable structures and components. This knowledge not only enhances the longevity of materials but also ensures the safety and efficiency of various engineering applications. As technology advances and materials become more sophisticated, the study of cyclic loading (循环载荷) will continue to play a pivotal role in the field of engineering.