yield strength

简明释义

屈服强度港作拖船

英英释义

例句

1.Engineers must ensure that the yield strength 屈服强度 of the steel used can withstand the load.

工程师必须确保所用钢材的yield strength屈服强度能够承受负荷。

2.In tensile testing, the yield strength 屈服强度 indicates the point at which a material begins to deform plastically.

在拉伸测试中，yield strength屈服强度指示材料开始发生塑性变形的点。

3.The yield strength 屈服强度 of aluminum is lower than that of steel, making it suitable for lightweight applications.

铝的yield strength屈服强度低于钢，这使其适合轻量化应用。

4.The material's yield strength 屈服强度 is crucial for determining its suitability in construction.

材料的yield strength屈服强度对于确定其在建筑中的适用性至关重要。

5.The yield strength 屈服强度 of a material can be affected by temperature and strain rate.

材料的yield strength屈服强度可能会受到温度和应变速率的影响。

作文

In the field of materials science and engineering, understanding the properties of materials is crucial for designing structures and components that can withstand various forces and loads. One of the key concepts in this domain is yield strength, which refers to the maximum stress that a material can withstand before it begins to deform permanently. This property is essential for engineers and designers as it helps them determine how much load a material can handle before it fails. When a material reaches its yield strength, it will no longer return to its original shape even after the load is removed, leading to what is known as plastic deformation. To illustrate the importance of yield strength, consider the example of a bridge. Engineers must select materials that not only support the weight of the bridge itself but also the weight of vehicles and pedestrians that will use it. If the material used has a low yield strength, it could easily deform under heavy loads, compromising the safety and integrity of the structure. Thus, understanding the yield strength of different materials allows engineers to make informed choices about which materials to use in construction projects.Moreover, yield strength is not a fixed value; it can vary depending on several factors such as temperature, strain rate, and the presence of defects or impurities in the material. For instance, metals typically exhibit higher yield strength at lower temperatures, while polymers may behave differently under varying conditions. This variability necessitates thorough testing and analysis to ensure that materials will perform adequately in their intended environments.Another important aspect of yield strength is its relationship with other mechanical properties, such as tensile strength and hardness. While yield strength indicates the point at which a material begins to deform plastically, tensile strength represents the maximum stress a material can withstand before breaking. Understanding these relationships helps engineers design components that are not only strong but also ductile enough to absorb energy without failing catastrophically.In practical applications, materials are often subjected to various forms of loading, including tension, compression, and shear. Each type of loading can influence the yield strength of the material differently. For example, some materials may have a higher yield strength in tension than in compression, which is critical for applications such as cables and beams. Therefore, engineers must consider the specific loading conditions when evaluating the yield strength of materials for their projects.In conclusion, yield strength is a fundamental property that plays a vital role in engineering and materials science. It informs the selection of materials for various applications, ensuring that structures can withstand the forces they encounter without failing. By understanding the factors that affect yield strength and its relationship with other mechanical properties, engineers can design safer and more efficient structures. As technology advances and new materials are developed, the study of yield strength will continue to be an essential aspect of engineering education and practice.

在材料科学和工程领域，理解材料的特性对于设计能够承受各种力和负载的结构和组件至关重要。其中一个关键概念是屈服强度，它指的是材料在开始发生永久变形之前可以承受的最大应力。这一特性对工程师和设计师至关重要，因为它帮助他们确定材料在失效前可以承受多少负载。当材料达到其屈服强度时，即使在移除负载后，它也不会恢复到原来的形状，导致所谓的塑性变形。为了说明屈服强度的重要性，可以考虑桥梁的例子。工程师必须选择不仅能支撑桥梁自身重量，还能支撑将使用它的车辆和行人的材料。如果使用的材料具有低屈服强度，在重负载下可能会轻易变形，从而危及结构的安全性和完整性。因此，理解不同材料的屈服强度使工程师能够在建筑项目中做出明智的材料选择。此外，屈服强度并不是一个固定值；它可能会因温度、应变速率以及材料中缺陷或杂质的存在等多个因素而有所不同。例如，金属通常在较低温度下表现出更高的屈服强度，而聚合物在不同条件下的表现可能有所不同。这种变异性需要进行彻底的测试和分析，以确保材料在其预期环境中能正常工作。屈服强度的另一个重要方面是它与其他机械性能之间的关系，例如抗拉强度和硬度。虽然屈服强度表示材料开始发生塑性变形的点，但抗拉强度则表示材料在断裂前可以承受的最大应力。理解这些关系有助于工程师设计出不仅强大而且足够延展以在不发生灾难性故障的情况下吸收能量的组件。在实际应用中，材料常常会受到各种形式的加载，包括拉伸、压缩和剪切。每种加载类型都可能以不同方式影响材料的屈服强度。例如，一些材料在拉伸时的屈服强度可能高于在压缩时的屈服强度，这对电缆和梁等应用至关重要。因此，工程师在评估材料的屈服强度时，必须考虑特定的加载条件。总之，屈服强度是一项基本特性，在工程和材料科学中发挥着至关重要的作用。它为各种应用中材料的选择提供了信息，确保结构能够承受它们所遇到的力量而不失效。通过理解影响屈服强度的因素及其与其他机械性能的关系，工程师可以设计出更安全、更高效的结构。随着技术的进步和新材料的发展，屈服强度的研究将继续成为工程教育和实践的重要方面。