tyield stress

简明释义

屈服点

英英释义

例句

1.The material exhibited a clear yield stress 屈服应力 when subjected to tensile testing.

该材料在拉伸测试中表现出明显的yield stress 屈服应力。

2.Understanding the yield stress 屈服应力 of concrete is crucial for construction projects.

理解混凝土的yield stress 屈服应力 对于建筑项目至关重要。

3.Engineers must account for the yield stress 屈服应力 when designing structural components.

工程师在设计结构组件时必须考虑yield stress 屈服应力。

4.The yield stress 屈服应力 of metals can vary significantly with temperature.

金属的yield stress 屈服应力 随温度变化可能会显著不同。

5.In polymer science, the yield stress 屈服应力 determines how the material will behave under load.

在聚合物科学中，yield stress 屈服应力 决定了材料在负载下的行为。

作文

Understanding the concept of yield stress is crucial in the field of materials science and engineering. Yield stress refers to the amount of stress that a material can withstand before it begins to deform permanently. This property is essential when designing structures and components that must endure various loads and forces during their service life. For instance, in civil engineering, knowing the yield stress of steel is vital for ensuring that buildings and bridges can support the weight of occupants and resist environmental factors such as wind and earthquakes.When a material is subjected to stress, it will initially deform elastically, meaning it will return to its original shape once the stress is removed. However, once the applied stress exceeds the yield stress, the material enters a plastic deformation phase, where it undergoes permanent changes in shape. This transition point is critical for engineers because it marks the limit of a material's elastic behavior.Different materials exhibit varying yield stress values, which can be influenced by factors such as temperature, strain rate, and the presence of impurities. For example, metals typically have higher yield stress values than polymers, making them suitable for heavy-duty applications. In contrast, polymers may be more flexible but can have lower yield stress values, which limits their use in structural applications.The determination of yield stress is usually conducted through standardized tests, such as tensile tests, where a sample material is pulled until it breaks. The results from these tests allow engineers to establish safety factors in their designs, ensuring that the structures they create will not fail under expected loads. Additionally, understanding yield stress helps in selecting appropriate materials for specific applications, thereby optimizing performance and safety.In conclusion, the concept of yield stress is fundamental in engineering and materials science. It provides insights into how materials behave under stress, enabling engineers to design safer and more effective structures. By comprehensively understanding yield stress, professionals can make informed decisions that enhance the reliability and longevity of their projects. Therefore, mastering this concept is essential for anyone involved in the fields of engineering and materials science.

理解屈服应力的概念在材料科学和工程领域至关重要。屈服应力是指材料在开始发生永久变形之前能够承受的应力大小。这一特性在设计必须承受各种载荷和力的结构和组件时是必不可少的。例如，在土木工程中，了解钢材的屈服应力对于确保建筑物和桥梁能够承载居民的重量并抵御风和地震等环境因素是至关重要的。当材料受到应力作用时，它最初会发生弹性变形，这意味着一旦去除应力，它将恢复到原始形状。然而，一旦施加的应力超过了屈服应力，材料就会进入塑性变形阶段，在此阶段，它会发生形状的永久变化。这个转折点对工程师来说至关重要，因为它标志着材料弹性行为的极限。不同材料表现出不同的屈服应力值，这可能受到温度、应变速率和杂质存在等因素的影响。例如，金属通常具有比聚合物更高的屈服应力值，使其适合于重型应用。相比之下，聚合物可能更灵活，但可能具有较低的屈服应力值，这限制了它们在结构应用中的使用。屈服应力的确定通常通过标准化测试进行，例如拉伸测试，其中样品材料被拉伸直至断裂。这些测试的结果使工程师能够在设计中建立安全系数，确保他们创建的结构在预期载荷下不会失效。此外，理解屈服应力有助于为特定应用选择合适的材料，从而优化性能和安全性。总之，屈服应力的概念在工程和材料科学中是基础。它提供了有关材料在应力下行为的见解，使工程师能够设计更安全、更有效的结构。通过全面理解屈服应力，专业人员可以做出明智的决策，从而提高项目的可靠性和耐久性。因此，掌握这一概念对于任何参与工程和材料科学领域的人来说都是必不可少的。