modulus of elasticity

简明释义

弹性模数弹性模量

英英释义

例句

1.In civil engineering, the modulus of elasticity is crucial for determining the stiffness of materials.

在土木工程中，弹性模量modulus of elasticity对于确定材料的刚度至关重要。

2.Steel has a high modulus of elasticity, making it suitable for construction purposes.

钢材具有高弹性模量modulus of elasticity，使其适合建筑用途。

3.The modulus of elasticity of rubber is much lower than that of metals.

橡胶的弹性模量modulus of elasticity远低于金属。

4.The modulus of elasticity measures how much a material deforms under stress.

弹性模量modulus of elasticity衡量材料在应力下变形的程度。

5.Understanding the modulus of elasticity helps engineers select appropriate materials for their projects.

理解弹性模量modulus of elasticity有助于工程师为他们的项目选择合适的材料。

作文

The concept of the modulus of elasticity is fundamental in the field of materials science and engineering. It refers to a material's ability to deform elastically when a force is applied. Essentially, the modulus of elasticity quantifies how much a material will stretch or compress under stress, which is crucial for engineers and designers when selecting materials for various applications. When a force is applied to a material, it experiences stress, which is defined as the force per unit area. The resulting deformation, known as strain, is the change in length or shape of the material relative to its original dimensions. The relationship between stress and strain is linear for many materials within their elastic limits, which means that they will return to their original shape once the load is removed. The modulus of elasticity is the ratio of stress to strain in this linear region and is expressed in units of pressure, such as Pascals (Pa). Different materials have different modulus of elasticity values, which can significantly affect their performance in structural applications. For example, metals typically have a high modulus of elasticity, meaning they are rigid and do not deform easily under stress. This property makes them ideal for construction materials where strength and stability are paramount. On the other hand, rubber has a low modulus of elasticity, allowing it to stretch and compress significantly. This characteristic is beneficial in applications like shock absorbers and flexible joints. Understanding the modulus of elasticity also plays a critical role in predicting how structures will behave under various loads. For instance, in civil engineering, knowing the modulus of elasticity of concrete helps engineers design buildings and bridges that can withstand forces such as wind, earthquakes, and the weight of occupants. By selecting materials with appropriate modulus of elasticity values, engineers can ensure that structures remain safe and functional throughout their lifespan. In addition to construction, the modulus of elasticity is also vital in other industries, such as automotive and aerospace engineering. Designers must consider the modulus of elasticity when developing components that must endure dynamic loads and vibrations. For example, in the automotive industry, the suspension system relies on materials with specific modulus of elasticity properties to provide a smooth ride while maintaining control and safety. Furthermore, the modulus of elasticity is not a constant value; it can change based on factors such as temperature, humidity, and the presence of defects in the material. This variability makes it essential for engineers to conduct thorough testing and analysis to determine the effective modulus of elasticity for the conditions in which a material will be used. In conclusion, the modulus of elasticity is a crucial parameter in understanding material behavior under stress. Its significance spans various fields, from construction to automotive design, where selecting the right materials can lead to safer and more efficient structures and products. As technology advances, the study of the modulus of elasticity continues to evolve, leading to the development of new materials that meet the ever-changing demands of modern engineering. In summary, the modulus of elasticity (弹性模量) is a key factor in material science that helps engineers and designers make informed decisions about material selection and application. By grasping this concept, one can better appreciate the complexities involved in designing safe and effective structures and products.

弹性模量的概念在材料科学和工程领域中是基础性的。它指的是材料在施加力时的弹性变形能力。基本上，弹性模量量化了材料在应力作用下会伸展或压缩多少，这对工程师和设计师在选择各种应用材料时至关重要。当施加力于材料时，它会经历应力，被定义为单位面积上的力。随之而来的变形，被称为应变，是材料相对于其原始尺寸的长度或形状的变化。在许多材料的弹性极限内，应力与应变之间的关系是线性的，这意味着一旦负载被移除，它们将返回到原始形状。弹性模量是此线性区域中应力与应变的比率，并以压力单位表示，如帕斯卡（Pa）。不同材料具有不同的弹性模量值，这可能会显著影响它们在结构应用中的表现。例如，金属通常具有高弹性模量，意味着它们在应力下不易变形。这种特性使它们成为建筑材料的理想选择，在那里强度和稳定性至关重要。另一方面，橡胶具有低弹性模量，允许其显著伸展和压缩。这种特性在如减震器和柔性接头等应用中非常有益。理解弹性模量还在预测结构在各种负载下的行为中发挥着关键作用。例如，在土木工程中，了解混凝土的弹性模量帮助工程师设计能够承受风、地震和居住者重量等力量的建筑和桥梁。通过选择适当弹性模量值的材料，工程师可以确保结构在其生命周期内保持安全和功能。除了建筑，弹性模量在汽车和航空航天工程等其他行业也至关重要。设计师在开发必须承受动态负载和振动的组件时，必须考虑弹性模量。例如，在汽车工业中，悬挂系统依赖于具有特定弹性模量属性的材料，以提供平稳的驾驶体验，同时保持控制和安全。此外，弹性模量并不是一个常数值；它可以根据温度、湿度和材料缺陷的存在而变化。这种可变性使得工程师进行彻底的测试和分析，以确定材料在使用条件下的有效弹性模量变得至关重要。总之，弹性模量是理解材料在应力下行为的关键参数。它的重要性跨越了多个领域，从建筑到汽车设计，在这些领域中，选择合适的材料可以导致更安全和更高效的结构和产品。随着技术的进步，弹性模量的研究继续发展，推动了新材料的开发，以满足现代工程不断变化的需求。总之，弹性模量（弹性模量）是材料科学中的一个关键因素，帮助工程师和设计师做出有关材料选择和应用的明智决策。通过掌握这一概念，人们可以更好地理解设计安全和有效的结构及产品所涉及的复杂性。