elastic limit

简明释义

弹性极限

英英释义

例句

1.The material will deform permanently if the stress exceeds its elastic limit (弹性极限).

如果材料的应力超过其弹性极限，它将永久变形。

2.A rubber band can stretch beyond its elastic limit (弹性极限), resulting in a permanent change in shape.

橡皮筋可以拉伸超过其弹性极限，导致形状发生永久变化。

3.Understanding the elastic limit (弹性极限) is crucial for materials science.

理解弹性极限对材料科学至关重要。

4.When testing the tensile strength, we found that the elastic limit (弹性极限) was lower than expected.

在测试拉伸强度时，我们发现弹性极限低于预期。

5.Engineers must ensure that the design stays within the elastic limit (弹性极限) to avoid failure.

工程师必须确保设计保持在弹性极限内，以避免故障。

作文

The concept of the elastic limit is fundamental in the field of materials science and engineering. It refers to the maximum amount of stress that a material can withstand while still returning to its original shape once the stress is removed. Understanding this concept is crucial for engineers and designers who work with various materials, as it helps them predict how those materials will behave under different conditions. For instance, when designing a bridge, engineers must consider the elastic limit of the materials used to ensure that they do not deform permanently under the weight of traffic or environmental forces.When a material is subjected to stress, it undergoes deformation. Initially, this deformation is elastic, meaning that the material will return to its original shape once the stress is removed. However, if the applied stress exceeds the elastic limit, the material enters a plastic deformation phase, where it will not return to its original shape even after the stress is removed. This transition from elastic to plastic behavior is critical in understanding material failure and durability.For example, consider a rubber band. When you stretch it within its limits, it will return to its original length when released. However, if you stretch it too far, beyond its elastic limit, it may break or remain stretched out permanently. This simple analogy illustrates the importance of knowing the elastic limit of materials in everyday applications.In the construction industry, the elastic limit is vital for ensuring safety and reliability. Structures must be designed to withstand various forces, including tension, compression, and shear. Engineers often use materials with known elastic limits to ensure that buildings and bridges can handle expected loads without permanent deformation. This knowledge helps prevent catastrophic failures and ensures the longevity of structures.Moreover, the elastic limit varies significantly among different materials. Metals, for instance, typically have higher elastic limits compared to plastics or rubber. This difference influences material selection for specific applications. For example, steel beams are commonly used in construction due to their high elastic limit, allowing them to support heavy loads without permanent deformation.In addition to engineering applications, the elastic limit concept also extends to other fields, such as biology and medicine. For instance, the elastic limit of biological tissues can influence how they respond to mechanical forces. Understanding these limits can aid in the design of medical devices or implants that interact with human tissue, ensuring that they function correctly without causing harm.In conclusion, the elastic limit is a crucial concept that plays a significant role in various fields, particularly in engineering and materials science. It defines the threshold at which materials transition from elastic to plastic behavior, influencing design choices and safety considerations. By understanding the elastic limit, engineers and scientists can create safer, more reliable products and structures that meet the demands of modern society. As technology advances, the study of elastic limits will continue to evolve, leading to new innovations and improvements in material performance and application.

“弹性极限”的概念在材料科学和工程领域中是基础性的。它指的是材料在承受最大应力时仍能在应力去除后恢复到其原始形状的最大应力值。理解这一概念对于从事各种材料工作的工程师和设计师至关重要，因为它有助于他们预测材料在不同条件下的行为。例如，在设计桥梁时，工程师必须考虑所用材料的弹性极限，以确保它们在交通或环境力量的重量下不会发生永久变形。当材料受到应力作用时，它会经历变形。最初，这种变形是弹性的，意味着材料在应力去除后会恢复到其原始形状。然而，如果施加的应力超过了弹性极限，材料就会进入塑性变形阶段，即使应力被去除，也不会恢复到原来的形状。这种从弹性行为到塑性行为的转变对于理解材料的失效和耐久性至关重要。例如，考虑一个橡皮筋。当你在其极限内拉伸它时，它会在释放时恢复到其原始长度。然而，如果你拉得太远，超过了它的弹性极限，它可能会断裂或永久保持拉伸状态。这个简单的类比说明了在日常应用中了解材料的弹性极限的重要性。在建筑行业中，弹性极限对于确保安全和可靠性至关重要。结构必须设计成能够承受多种力量，包括拉伸、压缩和剪切。工程师通常使用已知弹性极限的材料，以确保建筑物和桥梁能够在不发生永久变形的情况下承受预期的负载。这一知识有助于防止灾难性故障，并确保结构的长期使用。此外，不同材料的弹性极限差异显著。例如，金属的弹性极限通常高于塑料或橡胶。这一差异影响着特定应用的材料选择。例如，钢梁因其高弹性极限而常用于建筑，可以承受重负荷而不发生永久变形。除了工程应用外，弹性极限的概念还扩展到生物学和医学等其他领域。例如，生物组织的弹性极限可以影响其对力的机械反应。了解这些极限可以帮助设计与人体组织相互作用的医疗器械或植入物，确保它们正常工作而不会造成伤害。总之，弹性极限是一个关键概念，在各个领域中发挥着重要作用，尤其是在工程和材料科学中。它定义了材料从弹性行为转变为塑性行为的阈值，影响设计选择和安全考虑。通过理解弹性极限，工程师和科学家可以创造出更安全、更可靠的产品和结构，以满足现代社会的需求。随着技术的进步，弹性极限的研究将继续发展，带来材料性能和应用的新创新和改进。