modulus of elasticity

简明释义

弹性模量

英英释义

例句

1.In structural engineering, the modulus of elasticity 弹性模量 determines how much a material will deform under stress.

在结构工程中，弹性模量 modulus of elasticity决定了材料在应力下的变形程度。

2.The modulus of elasticity 弹性模量 of steel is significantly higher than that of rubber.

钢的弹性模量 modulus of elasticity明显高于橡胶。

3.Wood has a lower modulus of elasticity 弹性模量 compared to metals, making it more flexible.

与金属相比，木材的弹性模量 modulus of elasticity较低，使其更具灵活性。

4.When designing a bridge, engineers must consider the modulus of elasticity 弹性模量 of the materials used.

在设计桥梁时，工程师必须考虑所用材料的弹性模量 modulus of elasticity。

5.The modulus of elasticity 弹性模量 for concrete is crucial in determining its load-bearing capacity.

混凝土的弹性模量 modulus of elasticity对其承载能力至关重要。

作文

The concept of modulus of elasticity is fundamental in the field of materials science and engineering. It refers to the ratio of stress (force per unit area) to strain (deformation in relation to the original length) in a material that undergoes elastic deformation. When a material is subjected to stress, it deforms, but as long as the stress is within the elastic limit, the material will return to its original shape once the stress is removed. The modulus of elasticity quantifies this behavior and is a crucial parameter for engineers when selecting materials for various applications.Different materials exhibit different values of modulus of elasticity, which indicates how stiff or flexible they are. For example, steel has a high modulus of elasticity, making it an ideal choice for construction projects where strength and rigidity are required. On the other hand, rubber has a low modulus of elasticity, allowing it to stretch and compress easily. Understanding these differences is essential for engineers to ensure that the materials used in a project can withstand the expected loads without failing.In practical applications, the modulus of elasticity plays a vital role in design calculations. For instance, in civil engineering, when designing beams and columns, engineers must consider the modulus of elasticity to determine how much a structure will deflect under load. This deflection must be within acceptable limits to ensure safety and functionality. Similarly, in mechanical engineering, the modulus of elasticity is used to analyze how components will behave under various forces, ensuring that they perform as intended without excessive deformation.Moreover, the modulus of elasticity is not a fixed value; it can vary depending on factors such as temperature, humidity, and the specific composition of the material. For example, polymers may exhibit changes in their modulus of elasticity with temperature, becoming more flexible at higher temperatures. This variability must be taken into account during the design process to avoid unexpected failures in real-world conditions.In addition to its technical implications, the modulus of elasticity also has economic consequences. Selecting materials with the appropriate modulus of elasticity can lead to cost savings in both material usage and maintenance. For instance, using a stiffer material may reduce the amount of material needed for a structure, leading to lower costs and lighter designs. Engineers must balance the modulus of elasticity with other material properties, such as tensile strength and durability, to optimize performance and cost-effectiveness.In conclusion, the modulus of elasticity is a critical parameter in the study of materials and their applications in engineering. Its importance cannot be overstated, as it affects everything from material selection to structural design and economic considerations. A thorough understanding of the modulus of elasticity allows engineers to create safer, more efficient, and cost-effective designs, ultimately contributing to advancements in technology and infrastructure. By mastering this concept, professionals in the field can ensure that they make informed decisions that will lead to successful outcomes in their projects.

弹性模量的概念在材料科学和工程领域中是基础性的。它指的是材料在经历弹性变形时，施加的应力（单位面积上的力）与应变（相对于原始长度的变形）之间的比率。当材料受到应力时，它会发生变形，但只要应力在弹性极限内，材料在去除应力后会恢复到其原始形状。弹性模量量化了这种行为，并且是工程师在选择用于各种应用的材料时的重要参数。不同的材料表现出不同的弹性模量值，这表明它们的刚度或柔韧性。例如，钢材具有高弹性模量，使其成为建筑项目中需要强度和刚度的理想选择。另一方面，橡胶的弹性模量较低，使其能够轻松地伸展和压缩。理解这些差异对于工程师至关重要，以确保在项目中使用的材料能够承受预期的负载而不发生故障。在实际应用中，弹性模量在设计计算中起着至关重要的作用。例如，在土木工程中，在设计梁和柱时，工程师必须考虑弹性模量以确定结构在负载下的挠曲程度。这种挠曲必须在可接受的范围内，以确保安全性和功能性。同样，在机械工程中，弹性模量用于分析组件在各种力下的行为，确保它们在没有过度变形的情况下按预期工作。此外，弹性模量并不是一个固定值；它可能因温度、湿度和材料的具体成分等因素而变化。例如，聚合物的弹性模量可能随着温度的变化而变化，在较高温度下变得更加柔韧。在设计过程中，必须考虑这种变异性，以避免在实际条件下出现意外故障。除了技术影响外，弹性模量还具有经济后果。选择具有适当弹性模量的材料可以在材料使用和维护方面带来成本节约。例如，使用更刚性的材料可能减少结构所需的材料数量，从而降低成本并实现更轻的设计。工程师必须将弹性模量与其他材料特性（如抗拉强度和耐久性）进行平衡，以优化性能和成本效益。总之，弹性模量是研究材料及其在工程应用中的关键参数。其重要性不容小觑，因为它影响从材料选择到结构设计和经济考虑的方方面面。对弹性模量的透彻理解使工程师能够创造更安全、更高效和更具成本效益的设计，最终促进技术和基础设施的进步。通过掌握这一概念，领域内的专业人士可以确保做出明智的决策，从而在他们的项目中取得成功的成果。