limit of elasticity

简明释义

弹性极限

英英释义

例句

1.In materials science, the limit of elasticity determines how much a material can deform without permanent damage.

在材料科学中，弹性极限决定了材料在不造成永久损伤的情况下可以变形多少。

2.Understanding the limit of elasticity is crucial for designing safe structures.

理解弹性极限对于设计安全结构至关重要。

3.The limit of elasticity of steel is significantly higher than that of rubber.

钢材的弹性极限明显高于橡胶。

4.The engineer calculated the limit of elasticity to ensure the material would not fail under stress.

工程师计算了弹性极限以确保材料在应力下不会失效。

5.When testing new alloys, scientists measure the limit of elasticity to predict their performance.

在测试新合金时，科学家测量弹性极限以预测它们的性能。

作文

The concept of the limit of elasticity is fundamental in the field of materials science and engineering. It refers to the maximum extent to which a material can be deformed under stress without undergoing permanent deformation. When a material is subjected to external forces, it will initially deform elastically, meaning it will return to its original shape once the stress is removed. However, if the applied stress exceeds the limit of elasticity, the material will experience plastic deformation, leading to irreversible changes in its structure. Understanding this limit is crucial for engineers and designers as it helps them select appropriate materials for various applications. In practical terms, the limit of elasticity can vary significantly among different materials. For example, metals typically have a higher limit of elasticity compared to polymers or rubber. This characteristic makes metals suitable for construction and manufacturing, where strength and durability are essential. Conversely, materials like rubber are designed to undergo significant elastic deformation, making them ideal for applications such as tires and seals where flexibility is required. One of the most common ways to determine the limit of elasticity of a material is through tensile testing. In this process, a sample of the material is pulled until it breaks, and the stress-strain curve is plotted. The slope of the linear portion of this curve represents the material’s Young's modulus, while the point at which the curve begins to deviate from linearity indicates the limit of elasticity. This data is invaluable for engineers to ensure that structures can withstand expected loads without failing. Moreover, the limit of elasticity is not only relevant in static situations but also in dynamic loading conditions, such as those experienced by bridges and buildings during earthquakes or high winds. Engineers must account for these factors when designing structures to ensure safety and integrity. By understanding the limit of elasticity, they can predict how materials will behave under various conditions and make informed decisions on material selection and structural design. In conclusion, the limit of elasticity is a critical parameter in the study of materials, influencing everything from product design to civil engineering. It serves as a guideline for the safe and effective use of materials in construction and manufacturing. As technology advances, the ability to manipulate and enhance the limit of elasticity of materials will continue to play a vital role in innovation, leading to stronger, more resilient structures and products. Therefore, a thorough understanding of this concept is essential for anyone involved in the fields of engineering and materials science.

弹性极限的概念在材料科学和工程领域中至关重要。它指的是材料在应力作用下能够变形而不发生永久变形的最大程度。当材料受到外力作用时，它会最初以弹性方式变形，这意味着一旦去除应力，材料会恢复到原来的形状。然而，如果施加的应力超过了弹性极限，材料将经历塑性变形，导致其结构发生不可逆转的变化。理解这一极限对工程师和设计师至关重要，因为这有助于他们为各种应用选择合适的材料。在实际应用中，不同材料的弹性极限可能显著不同。例如，金属通常具有比聚合物或橡胶更高的弹性极限。这一特性使金属适合用于建筑和制造，因其强度和耐久性至关重要。相反，像橡胶这样的材料被设计成能够经历显著的弹性变形，使其非常适合用于轮胎和密封件等需要灵活性的应用。确定材料的弹性极限的最常见方法之一是通过拉伸测试。在这个过程中，材料样本被拉伸直到断裂，并绘制应力-应变曲线。该曲线线性部分的斜率代表材料的杨氏模量，而曲线开始偏离线性的点则表示弹性极限。这些数据对工程师至关重要，以确保结构能够承受预期负荷而不会失败。此外，弹性极限不仅与静态情况相关，也与动态加载条件相关，例如桥梁和建筑在地震或强风中所经历的情况。工程师在设计结构时必须考虑这些因素，以确保安全和完整性。通过理解弹性极限，他们可以预测材料在各种条件下的行为，并在材料选择和结构设计上做出明智的决策。总之，弹性极限是材料研究中的关键参数，影响从产品设计到土木工程的方方面面。它作为建筑和制造中安全有效使用材料的指导原则。随着技术的发展，操控和增强材料的弹性极限的能力将继续在创新中发挥重要作用，导致更强大、更具韧性的结构和产品。因此，深入理解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。