cyclic loading

简明释义

周期性载荷

英英释义

例句

1.The fatigue life of the component is significantly affected by 循环载荷 conditions.

该组件的疲劳寿命受到循环载荷条件的显著影响。

2.The bridge was designed to withstand 循环载荷 from heavy traffic.

这座桥梁的设计能够承受来自重型交通的循环载荷。

3.In structural analysis, 循环载荷 can lead to unexpected failures.

在结构分析中，循环载荷可能导致意外故障。

4.Engineers must account for 循环载荷 when testing the durability of materials.

工程师在测试材料耐久性时必须考虑循环载荷。

5.The design of the aircraft wing must consider 循环载荷 during flight.

飞机机翼的设计必须考虑飞行中的循环载荷。

作文

Cyclic loading is a fundamental concept in the field of materials science and engineering. It refers to the application of repeated loads or stress to a material over time. This phenomenon is particularly significant in structural engineering, as many structures are subjected to varying loads throughout their lifespan. For instance, bridges experience cyclic loading from the weight of vehicles passing over them, while aircraft wings endure similar stresses during flight. Understanding the effects of cyclic loading (循环载荷) on materials is crucial for ensuring safety and longevity in construction and design. When a material is subjected to cyclic loading (循环载荷), it can lead to fatigue, which is the progressive and localized structural damage that occurs when a material is subjected to cyclic loading. This damage may not be immediately apparent, as it often develops over time and can eventually result in catastrophic failure if not monitored. Engineers must account for this when designing structures, ensuring that they can withstand the expected levels of cyclic stress without succumbing to fatigue.The study of cyclic loading (循环载荷) involves understanding various factors, including the amplitude and frequency of the load, the material properties, and the environment in which the material operates. For example, metals typically exhibit different fatigue behavior compared to polymers or composites. High-frequency cyclic loading may lead to different failure mechanisms than low-frequency loading. Therefore, engineers often conduct fatigue tests to determine how materials will behave under specific loading conditions.One common method for analyzing the effects of cyclic loading (循环载荷) is through the S-N curve, which plots the number of cycles to failure against the stress level. This relationship helps engineers predict how long a material will last under repeated loading conditions. Additionally, the concept of the endurance limit is critical; it refers to the maximum stress level below which a material can theoretically endure an infinite number of cycles without failing. Understanding these parameters allows engineers to make informed decisions about material selection and structural design.Moreover, advancements in technology have led to improved methods for predicting and analyzing the effects of cyclic loading (循环载荷). Finite element analysis (FEA) software enables engineers to simulate how materials respond to cyclic stresses under various conditions. This technology has revolutionized the design process, allowing for more accurate predictions of material behavior and leading to safer, more efficient structures.In conclusion, the concept of cyclic loading (循环载荷) is essential in the fields of engineering and materials science. It plays a pivotal role in ensuring the safety and reliability of structures that are subjected to repeated stresses. By understanding the implications of cyclic loading and utilizing advanced analytical techniques, engineers can design structures that not only meet performance requirements but also stand the test of time. As technology continues to evolve, the ability to analyze and predict the effects of cyclic loading (循环载荷) will undoubtedly enhance our capability to create durable and resilient infrastructures.