yield strength

简明释义

屈服极限

英英释义

例句

1.To prevent structural failure, the yield strength must be exceeded by the ultimate tensile strength of the material.

为了防止结构失效，屈服强度必须小于材料的极限抗拉强度。

2.Manufacturers often specify the yield strength in the technical datasheets for materials used in products.

制造商通常在产品使用材料的技术数据表中指定屈服强度。

3.The yield strength of aluminum is generally lower than that of steel, which affects its applications in engineering.

铝的屈服强度通常低于钢，这影响了它在工程中的应用。

4.The engineer calculated the yield strength of the material to ensure it could withstand the applied loads without permanent deformation.

工程师计算了材料的屈服强度，以确保其能够承受施加的载荷而不发生永久变形。

5.In construction, knowing the yield strength of steel is crucial for designing safe structures.

在建筑中，了解钢材的屈服强度对于设计安全结构至关重要。

作文

Understanding the concept of yield strength is crucial for anyone involved in engineering, manufacturing, or materials science. It refers to the amount of stress that a material can withstand without undergoing permanent deformation. In simpler terms, it is the point at which a material begins to change shape permanently when subjected to an external force. Knowing the yield strength of a material helps engineers and designers select appropriate materials for various applications, ensuring safety and reliability.For instance, consider the construction of a bridge. Engineers must choose materials that can support the weight of vehicles and withstand environmental forces such as wind and earthquakes. If the materials used have a low yield strength, they may bend or break under load, leading to catastrophic failures. Therefore, understanding the yield strength allows engineers to make informed decisions about material selection, ultimately contributing to the structure's integrity and longevity.The yield strength varies significantly among different materials. Metals, for example, typically have high yield strength values compared to plastics or wood. Steel, which is commonly used in construction, has a yield strength ranging from 250 MPa to over 1000 MPa depending on its grade and composition. On the other hand, materials like aluminum have lower yield strength, usually around 70-700 MPa. This variation is essential to consider, as it dictates how each material will perform under stress.Moreover, the yield strength can be influenced by factors such as temperature, strain rate, and the presence of impurities. For example, increasing the temperature of a metal often decreases its yield strength, making it more ductile but less capable of bearing heavy loads. Similarly, rapid loading conditions can lead to higher yield strength due to strain rate sensitivity, which is crucial in applications like automotive crash testing.In addition to practical applications, the concept of yield strength also plays a significant role in research and development. Scientists and engineers continually seek new materials with superior yield strength properties to improve product performance and reduce weight. For instance, the aerospace industry is always looking for lightweight materials that can withstand high stresses without failing. Innovations in composite materials and advanced alloys are driven by the need for higher yield strength while maintaining low weight.In conclusion, the importance of understanding yield strength cannot be overstated. It is a fundamental property that influences material selection, design, and safety across various industries. Whether constructing a building, designing a vehicle, or developing new technologies, knowledge of yield strength ensures that materials can perform as expected under different conditions. As technology advances, the quest for materials with enhanced yield strength continues, paving the way for innovations that can transform our world. By grasping this concept, we can appreciate the intricate balance between material properties and their applications in real-world scenarios.

理解屈服强度的概念对于任何参与工程、制造或材料科学的人来说都是至关重要的。它指的是材料在不发生永久变形的情况下可以承受的应力量。简单来说，它是材料在施加外力时开始永久改变形状的点。了解材料的屈服强度有助于工程师和设计师选择适合各种应用的材料，确保安全性和可靠性。例如，考虑桥梁的建造。工程师必须选择能够支撑车辆重量并承受风和地震等环境力量的材料。如果使用的材料具有低屈服强度，它们可能在负载下弯曲或断裂，导致灾难性的故障。因此，理解屈服强度使工程师能够就材料选择作出明智的决定，最终有助于结构的完整性和耐久性。不同材料的屈服强度差异显著。例如，金属通常具有比塑料或木材更高的屈服强度值。钢铁是建筑中常用的材料，其屈服强度根据其等级和成分的不同，范围从250 MPa到超过1000 MPa。另一方面，铝的屈服强度较低，通常在70-700 MPa之间。这种变化是需要考虑的重要因素，因为它决定了每种材料在应力下的表现。此外，屈服强度还会受到温度、应变速率和杂质存在等因素的影响。例如，提高金属的温度通常会降低其屈服强度，使其更具延展性，但承载重负荷的能力下降。类似地，快速加载条件可能导致由于应变速率敏感性而提高屈服强度，这在汽车碰撞测试等应用中至关重要。除了实际应用之外，屈服强度的概念在研发中也发挥着重要作用。科学家和工程师不断寻求具有优越屈服强度特性的材料，以改善产品性能和减轻重量。例如，航空航天工业始终在寻找能够承受高应力而不失效的轻质材料。复合材料和先进合金的创新正是出于对在保持低重量的同时提高屈服强度的需求。总之，理解屈服强度的重要性不容小觑。它是影响材料选择、设计和安全性的基本属性，涉及各个行业。无论是建造建筑、设计车辆还是开发新技术，了解屈服强度确保材料在不同条件下能够按预期表现。随着技术的进步，对具有更高屈服强度的材料的追求仍在继续，为能够改变我们世界的创新铺平道路。通过掌握这一概念，我们可以欣赏材料属性与实际应用之间的复杂平衡。