extension modulus

简明释义

伸长模量

英英释义

例句

1.A higher extension modulus 延展模量 indicates a stiffer material that can withstand more stress.

更高的延展模量表明材料更坚硬，可以承受更多的应力。

2.The extension modulus 延展模量 of metals varies significantly with temperature changes.

金属的延展模量会随着温度变化而显著不同。

3.Engineers often refer to the extension modulus 延展模量 when designing structures to ensure they can handle loads.

工程师在设计结构时经常参考延展模量以确保它们能够承受负载。

4.The material's extension modulus 延展模量 is crucial for determining its elasticity.

材料的延展模量在确定其弹性方面至关重要。

5.In the lab, we measured the extension modulus 延展模量 to evaluate the tensile strength of the polymer.

在实验室，我们测量了延展模量以评估聚合物的抗拉强度。

作文

In the field of materials science and engineering, understanding the mechanical properties of materials is crucial for their effective application in various industries. One such important property is the extension modulus, which is a measure of a material's ability to deform elastically when subjected to tensile stress. The extension modulus is often referred to as the tensile modulus or Young's modulus in some contexts, and it plays a vital role in determining how materials behave under load. When we talk about the extension modulus, we are essentially discussing the ratio of stress (force per unit area) to strain (deformation relative to original length) within the elastic limit of the material. This relationship is typically linear, meaning that as the stress increases, the strain increases proportionally until the material reaches its yield point. Beyond this point, the material may undergo plastic deformation, where it no longer returns to its original shape after the removal of the load.The significance of the extension modulus cannot be overstated, as it helps engineers and designers select the right materials for specific applications. For instance, in construction, materials with a high extension modulus are preferred for structural components because they can withstand greater loads without undergoing significant deformation. On the other hand, materials with a low extension modulus might be chosen for applications where flexibility is more important than stiffness, such as in the manufacturing of rubber products.To measure the extension modulus, a standardized test is often performed, typically using a tensile testing machine. During this test, a sample of the material is pulled apart at a controlled rate, and both the force applied and the resulting elongation are recorded. The slope of the linear portion of the stress-strain curve generated from this data represents the extension modulus. This quantitative value provides essential information about the material's performance characteristics and helps predict how it will behave under real-world conditions.Moreover, the extension modulus can also be influenced by various factors such as temperature, humidity, and the presence of impurities in the material. For example, polymers often exhibit a decrease in extension modulus at elevated temperatures, making them more flexible and easier to process. Understanding these variations is critical for engineers who must consider environmental conditions when designing products.In conclusion, the extension modulus is a fundamental concept in materials science that describes how materials respond to tensile forces. Its importance spans across various industries, from construction to manufacturing, influencing material selection and product design. A thorough understanding of the extension modulus allows engineers to create safer, more efficient, and innovative products that meet the demands of modern applications. As technology continues to advance, the study of the extension modulus and its implications will remain a key area of research, ensuring that materials are used to their fullest potential while maintaining safety and reliability in their applications.

在材料科学和工程领域，理解材料的机械性能对于其在各个行业的有效应用至关重要。其中一个重要的特性是延伸模量，它是衡量材料在施加拉伸应力时弹性变形能力的指标。延伸模量在某些上下文中也被称为拉伸模量或杨氏模量，它在确定材料在负载下的行为方面发挥着重要作用。当我们谈论延伸模量时，实际上是在讨论材料在弹性极限内应力（单位面积上的力）与应变（相对于原始长度的变形）的比率。这种关系通常是线性的，意味着随着应力的增加，应变也会成比例增加，直到材料达到屈服点。在这一点之后，材料可能会经历塑性变形，即在去除负载后不再恢复到其原始形状。延伸模量的重要性不容小觑，因为它帮助工程师和设计师选择适合特定应用的材料。例如，在建筑中，具有高延伸模量的材料更适合用于结构组件，因为它们能够承受更大的负载而不会发生显著变形。另一方面，低延伸模量的材料可能被选择用于灵活性比刚度更重要的应用，例如橡胶产品的制造。为了测量延伸模量，通常会进行标准化测试，通常使用拉伸测试机。在此测试中，材料样本以控制速率被拉伸，并记录施加的力和由此产生的延伸。根据这些数据生成的应力-应变曲线的线性部分的斜率代表延伸模量。这个定量值提供了关于材料性能特征的重要信息，并帮助预测它在实际条件下的表现。此外，延伸模量还可能受到温度、湿度以及材料中杂质存在等各种因素的影响。例如，聚合物在高温下通常表现出延伸模量的降低，使其更加柔韧且易于加工。理解这些变化对工程师至关重要，他们必须考虑环境条件在设计产品时。总之，延伸模量是材料科学中的一个基本概念，描述了材料如何响应拉伸力。它的重要性跨越多个行业，从建筑到制造，影响材料选择和产品设计。对延伸模量的透彻理解使工程师能够创造出更安全、更高效和创新的产品，以满足现代应用的需求。随着技术的不断进步，对延伸模量及其影响的研究将继续成为一个关键领域，确保材料得到充分利用，同时在其应用中保持安全和可靠。