cyclic stress

简明释义

周期性应力

英英释义

例句

1.Understanding cyclic stress is crucial for predicting when a component will fail under repeated loading.

理解循环应力对于预测组件在重复加载下何时会失效至关重要。

2.The engineer conducted tests to evaluate the effects of cyclic stress on the material's fatigue life.

工程师进行了测试，以评估循环应力对材料疲劳寿命的影响。

3.To improve safety, engineers must account for cyclic stress in their designs.

为了提高安全性，工程师必须在设计中考虑循环应力。

4.In the automotive industry, cyclic stress testing helps ensure the durability of vehicle parts.

在汽车行业，循环应力测试有助于确保车辆部件的耐用性。

5.The researcher published a paper detailing the impact of cyclic stress on metal fatigue.

研究人员发表了一篇论文，详细说明了循环应力对金属疲劳的影响。

作文

Cyclic stress is a term frequently encountered in the field of materials science and engineering. It refers to the repeated application of stress on a material, which can lead to fatigue and eventual failure. Understanding cyclic stress (循环应力) is crucial for engineers and designers, particularly when developing components that will experience fluctuating loads over their lifespan.In many engineering applications, materials are subjected to varying loads during operation. For instance, the wheels of a car experience different stress levels as they rotate, accelerating and decelerating with the vehicle's motion. This scenario is a classic example of cyclic stress (循环应力), where the material must withstand repeated loading and unloading cycles. Over time, even materials that are strong and durable can succumb to this type of stress, leading to cracks and eventual structural failure.To comprehend cyclic stress (循环应力), it is essential to understand the concept of fatigue. Fatigue is the progressive and localized structural damage that occurs when a material is subjected to cyclic loading. The phenomenon is often characterized by an S-N curve, which plots stress amplitude against the number of cycles to failure. This curve helps engineers predict how long a material can endure specific stress levels before it fails.One of the critical aspects of managing cyclic stress (循环应力) in engineering design is selecting appropriate materials. Some materials exhibit better fatigue resistance than others. For example, metals like titanium and certain alloys are known for their strength and fatigue resistance, making them suitable for applications where cyclic stress (循环应力) is a concern. In contrast, materials like cast iron may not perform as well under repeated stress, leading to quicker failure.Another important consideration is the design of components. Engineers often incorporate features that help distribute loads more evenly, thus minimizing the concentration of cyclic stress (循环应力) in specific areas. Techniques such as filleting sharp corners or using thicker sections in high-stress areas can significantly enhance the durability of a component.Moreover, testing for cyclic stress (循环应力) is vital during the development phase of any project. Engineers use various methods, including fatigue testing, to simulate the effects of repeated loading on materials and components. These tests provide valuable data that can be used to refine designs and select appropriate materials, ultimately leading to safer and more reliable products.In conclusion, understanding cyclic stress (循环应力) is essential for anyone involved in materials science and engineering. It plays a critical role in determining the longevity and reliability of components subjected to varying loads. By considering factors such as material selection, design principles, and rigorous testing, engineers can mitigate the risks associated with cyclic stress (循环应力) and ensure the safety and effectiveness of their designs. As technology advances and new materials are developed, the knowledge of cyclic stress (循环应力) will continue to evolve, shaping the future of engineering and manufacturing.

循环应力是材料科学和工程领域中常见的术语。它指的是对材料施加重复应力，这可能导致疲劳和最终失效。理解循环应力（cyclic stress）对于工程师和设计师至关重要，特别是在开发在其使用寿命内会经历波动负载的组件时。在许多工程应用中，材料在操作过程中会承受不同的负载。例如，汽车的车轮在旋转时会经历不同的应力水平，随着车辆的运动而加速和减速。这种情况是循环应力（cyclic stress）的经典例子，其中材料必须承受重复的加载和卸载周期。随着时间的推移，即使是强大且耐用的材料也可能屈服于这种类型的应力，导致裂纹和最终的结构失效。要理解循环应力（cyclic stress），首先必须了解疲劳的概念。疲劳是材料在经历循环加载时发生的逐渐和局部结构损伤。该现象通常以S-N曲线为特征，该曲线绘制了应力幅度与失效循环次数之间的关系。该曲线帮助工程师预测材料在特定应力水平下能够承受多长时间而不失效。管理循环应力（cyclic stress）的一个关键方面是选择适当的材料。一些材料表现出比其他材料更好的疲劳抗力。例如，钛和某些合金等金属以其强度和疲劳抗力而闻名，使其适用于关注循环应力（cyclic stress）的应用。相比之下，铸铁等材料在重复应力下的表现可能不如前者，从而导致更快的失效。另一个重要考虑因素是组件的设计。工程师通常会结合一些特性来帮助更均匀地分配负载，从而最小化特定区域的循环应力（cyclic stress）集中。通过圆角处理尖锐的边角或在高应力区域使用更厚的部分等技术可以显著增强组件的耐用性。此外，在任何项目的开发阶段，测试循环应力（cyclic stress）至关重要。工程师使用各种方法，包括疲劳测试，以模拟重复加载对材料和组件的影响。这些测试提供了宝贵的数据，可用于完善设计和选择适当的材料，最终导致更安全和更可靠的产品。总之，理解循环应力（cyclic stress）对于任何参与材料科学和工程的人来说都是至关重要的。它在确定承受不同负载的组件的使用寿命和可靠性方面发挥着关键作用。通过考虑材料选择、设计原则和严格测试等因素，工程师可以减轻与循环应力（cyclic stress）相关的风险，确保他们设计的安全性和有效性。随着技术的进步和新材料的开发，对循环应力（cyclic stress）的认识将继续发展，塑造工程和制造的未来。