tyield point

简明释义

屈服点

英英释义

例句

1.When the load exceeded the yield point, the beam began to deform permanently.

当载荷超过屈服点时，梁开始永久变形。

2.Understanding the yield point is crucial for designing safe structures.

理解屈服点对于设计安全结构至关重要。

3.In tensile testing, the yield point indicates the transition from elastic to plastic deformation.

在拉伸测试中，屈服点表示从弹性变形到塑性变形的过渡。

4.The yield point of steel is typically higher than that of aluminum.

钢的屈服点通常高于铝的。

5.The engineer explained that the material reached its yield point at a stress level of 250 MPa.

工程师解释说，该材料在250 MPa的应力水平下达到了屈服点。

作文

In the field of materials science and engineering, one of the most critical concepts is the yield point, which refers to the stress at which a material begins to deform plastically. This means that before reaching the yield point, a material will deform elastically, meaning it will return to its original shape when the applied stress is removed. However, once the yield point is surpassed, the material undergoes permanent deformation. Understanding this concept is essential for engineers and designers who need to ensure that structures can withstand various loads without failing. For instance, consider a steel beam used in construction. Engineers must calculate the maximum load that the beam can support without exceeding its yield point. If the load exceeds this point, the beam may bend or warp, compromising the integrity of the entire structure. Therefore, knowing the yield point allows engineers to design safer buildings and bridges that can endure both static and dynamic loads.Another important aspect of the yield point is its relationship with different types of materials. Different materials exhibit varying yield points, influenced by factors such as temperature, strain rate, and material composition. For example, metals typically have a well-defined yield point, while polymers may not show a clear transition from elastic to plastic behavior. This variability necessitates thorough testing and analysis to determine the yield point for each specific material used in engineering applications.Moreover, the yield point is not just a theoretical concept; it has practical implications in manufacturing processes. During processes such as forging, welding, or machining, understanding the yield point helps manufacturers avoid damaging materials. For instance, if a metal is heated beyond its yield point during forging, it may lose its desired properties, leading to a subpar final product. Therefore, maintaining control over processing conditions is crucial to ensure that materials retain their strength and durability.In summary, the concept of the yield point is fundamental in engineering and materials science. It defines the threshold at which materials transition from elastic to plastic deformation, significantly impacting the design and manufacturing of structures. Engineers must consider the yield point when selecting materials and designing components to ensure safety and performance. By understanding and applying the principles surrounding the yield point, we can create more reliable and efficient products that meet the demands of modern engineering challenges.

在材料科学和工程领域，一个至关重要的概念是屈服点，它指的是材料开始发生塑性变形的应力。这意味着在达到屈服点之前，材料将发生弹性变形，即在施加的应力被移除时，它将恢复到原来的形状。然而，一旦超过屈服点，材料就会发生永久变形。理解这一概念对于需要确保结构能够承受各种负荷而不发生故障的工程师和设计师至关重要。例如，考虑用在建筑中的钢梁。工程师必须计算出梁可以支持的最大负载，而不超过其屈服点。如果负载超过这一点，梁可能会弯曲或变形，从而危及整个结构的完整性。因此，了解屈服点使工程师能够设计出能够承受静态和动态负荷的更安全的建筑和桥梁。屈服点的另一个重要方面是它与不同类型材料之间的关系。不同材料表现出不同的屈服点，受到温度、应变速率和材料成分等因素的影响。例如，金属通常具有明确的屈服点，而聚合物可能不会显示出从弹性到塑性行为的明显过渡。这种变异性要求对每种特定材料进行彻底的测试和分析，以确定其屈服点，以便在工程应用中使用。此外，屈服点不仅是一个理论概念，它在制造过程中也具有实际意义。在锻造、焊接或加工等过程中，理解屈服点有助于制造商避免损坏材料。例如，如果在锻造过程中金属被加热到超过其屈服点，它可能会失去所需的性能，导致最终产品质量不佳。因此，保持对加工条件的控制对于确保材料保持其强度和耐用性至关重要。总之，屈服点的概念在工程和材料科学中是基础性的。它定义了材料从弹性变形到塑性变形的阈值，对结构的设计和制造产生重大影响。工程师在选择材料和设计组件时必须考虑屈服点，以确保安全性和性能。通过理解和应用围绕屈服点的原则，我们可以创造出更可靠和高效的产品，以满足现代工程挑战的需求。