yield point

简明释义

降服点；屈服点

英英释义

例句

1.The tensile test revealed the material's yield point 屈服点, which is crucial for determining its strength.

拉伸测试揭示了材料的yield point 屈服点，这对确定其强度至关重要。

2.In metalworking, it is essential to know the yield point 屈服点 to avoid material failure.

在金属加工中，了解yield point 屈服点是避免材料失效的关键。

3.The yield point 屈服点 of this alloy is significantly higher than that of pure metal.

这种合金的yield point 屈服点明显高于纯金属。

4.Understanding the yield point 屈服点 helps engineers design safer structures.

理解yield point 屈服点有助于工程师设计更安全的结构。

5.When the stress exceeds the yield point 屈服点, the material will deform permanently.

当应力超过yield point 屈服点时，材料将发生永久变形。

作文

In the field of materials science and engineering, understanding the mechanical properties of materials is crucial for designing safe and effective structures. One key concept in this area is the yield point, which refers to the stress level at which a material begins to deform plastically. Beyond this point, any deformation that occurs will not be fully recovered once the load is removed. The yield point is vital for engineers to know because it helps them determine the limits within which a material can be safely used without permanent deformation. To illustrate, consider a steel beam used in construction. When the beam is subjected to weight, it will initially respond elastically, meaning it will return to its original shape when the weight is removed. However, if the weight exceeds the yield point of the steel, the material will undergo plastic deformation, resulting in a permanent change in shape. This could lead to structural failure if not properly accounted for in design calculations.The yield point can vary significantly depending on the type of material and its treatment. For example, cold-rolled steel has a higher yield point compared to hot-rolled steel due to the strain hardening process it undergoes during manufacturing. Understanding these differences is essential for engineers as they select materials for specific applications.Moreover, the yield point is not only important in static loading conditions but also plays a critical role in dynamic situations where materials are subjected to varying loads over time. Engineers must consider factors such as fatigue and impact loading, which can affect the yield point and overall performance of a material. In practical applications, testing for the yield point is typically done through tensile tests, where a sample material is pulled until it deforms. The results help engineers to create specifications and guidelines for material use in various industries, including construction, automotive, and aerospace. In conclusion, the yield point is a fundamental concept in materials science that signifies the transition from elastic to plastic deformation. It is essential for engineers to understand this property to ensure safety and reliability in their designs. By knowing the yield point, they can make informed decisions about material selection and application, ultimately leading to better and safer engineering outcomes.

在材料科学和工程领域，理解材料的机械性能对于设计安全有效的结构至关重要。一个关键概念是屈服点，它指的是材料开始发生塑性变形的应力水平。在这个点之后，任何发生的变形在移除负载后都不会完全恢复。了解屈服点对工程师来说至关重要，因为它帮助他们确定材料可以安全使用而不发生永久变形的极限。例如，考虑在建筑中使用的钢梁。当钢梁受到重量时，它最初会以弹性方式响应，这意味着当重量被移除时，它会恢复到原始形状。然而，如果重量超过了钢材的屈服点，材料将经历塑性变形，导致形状的永久变化。如果在设计计算中没有正确考虑这一点，可能会导致结构失效。屈服点因材料类型及其处理方式而异。例如，冷轧钢的屈服点高于热轧钢，因为它在制造过程中经历了应变硬化。理解这些差异对工程师选择特定应用材料至关重要。此外，屈服点不仅在静态加载条件下重要，而且在动态情况下也起着关键作用，在这些情况下，材料会随着时间的推移而受到变化的负载。工程师必须考虑疲劳和冲击载荷等因素，这些因素可能会影响屈服点和材料的整体性能。在实际应用中，通常通过拉伸试验来测试屈服点，在此过程中，样品材料被拉伸直至变形。结果帮助工程师制定材料在各个行业中的使用规范和指南，包括建筑、汽车和航空航天。总之，屈服点是材料科学中的一个基本概念，标志着从弹性变形到塑性变形的过渡。工程师理解这一属性对于确保设计的安全性和可靠性至关重要。通过了解屈服点，他们可以在材料选择和应用上做出明智的决策，从而最终实现更好和更安全的工程成果。