modulus of elasticity

简明释义

弹性模数

英英释义

例句

1.A high modulus of elasticity 弹性模量 indicates a material is stiff and resists deformation.

高弹性模量 modulus of elasticity 表示材料坚硬并抵抗变形。

2.Engineers often refer to the modulus of elasticity 弹性模量 when selecting materials for construction.

工程师在选择建筑材料时经常参考弹性模量 modulus of elasticity。

3.The modulus of elasticity 弹性模量 of concrete varies with its composition and moisture content.

混凝土的弹性模量 modulus of elasticity 随其成分和水分含量而变化。

4.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。

5.In mechanical engineering, the modulus of elasticity 弹性模量 is crucial for analyzing stress and strain.

在机械工程中，弹性模量 modulus of elasticity 对于分析应力和应变至关重要。

作文

The concept of modulus of elasticity is fundamental in the field of materials science and engineering. It is a measure of a material's ability to deform elastically (i.e., non-permanently) when a force is applied. In simpler terms, it quantifies how much a material will stretch or compress when subjected to stress. The modulus of elasticity is crucial for engineers and designers as it helps them determine how materials will behave under various loads and conditions.When we talk about the modulus of elasticity, we often refer to two main types: the Young's modulus and the shear modulus. Young's modulus measures the tensile or compressive stiffness of a solid material. It is defined as the ratio of tensile stress (force per unit area) to tensile strain (proportional deformation in length). On the other hand, the shear modulus relates to how a material deforms under shear stress, which is parallel to the surface of the material. Understanding both types of modulus of elasticity is essential for applications ranging from civil engineering to aerospace design.One of the most significant applications of the modulus of elasticity is in the construction industry. When designing buildings and bridges, engineers must select materials that can withstand various loads without excessive deformation. For instance, steel has a high modulus of elasticity, which means it can support heavy loads while maintaining its shape. Conversely, materials with a low modulus of elasticity, like rubber, will deform significantly under the same load, making them unsuitable for structural applications.Moreover, the modulus of elasticity is not only relevant for static loads but also for dynamic loads, such as those experienced during earthquakes or windstorms. Engineers utilize the modulus of elasticity to predict how structures will respond to these forces, ensuring they remain safe and functional over time.In addition to construction, the modulus of elasticity plays a vital role in manufacturing processes. For example, when producing components for automobiles or machinery, manufacturers must choose materials that will maintain their shape and integrity under operational stresses. The modulus of elasticity helps them select appropriate materials that will not fail prematurely, leading to safer and more reliable products.Furthermore, the modulus of elasticity is also important in the field of biomechanics. Understanding how biological tissues behave under stress is crucial for developing medical implants and prosthetics. For instance, the modulus of elasticity of bone is significantly different from that of soft tissues, and this difference must be accounted for when designing implants that will integrate with the body.In conclusion, the modulus of elasticity is a key property that influences the performance of materials in various applications. Its significance spans multiple fields, including construction, manufacturing, and biomechanics. By understanding and applying the principles of the modulus of elasticity, engineers and designers can create safer, more effective products and structures. As technology advances, the importance of accurately measuring and utilizing the modulus of elasticity will only continue to grow, highlighting the need for ongoing research and development in this area.

弹性模量的概念在材料科学和工程领域中是基础性的。它是衡量材料在施加力时以弹性（即非永久性）变形的能力的指标。简单来说，它量化了当施加应力时，材料会拉伸或压缩的程度。弹性模量对工程师和设计师至关重要，因为它帮助他们确定材料在各种负载和条件下的行为。当我们谈论弹性模量时，通常会提到两种主要类型：杨氏模量和剪切模量。杨氏模量测量固体材料的拉伸或压缩刚度。它被定义为拉伸应力（单位面积上的力）与拉伸应变（长度的比例变形）之间的比率。另一方面，剪切模量与材料在剪切应力下的变形有关，这种应力是平行于材料表面的。理解这两种弹性模量对于从土木工程到航空航天设计的应用至关重要。弹性模量最重要的应用之一是在建筑行业。在设计建筑物和桥梁时，工程师必须选择能够承受各种负载而不会过度变形的材料。例如，钢材具有高弹性模量，这意味着它可以在保持形状的同时支持重负荷。相反，像橡胶这样的低弹性模量材料在相同负载下会显著变形，因此不适合结构应用。此外，弹性模量不仅与静态负载相关，还与动态负载相关，例如在地震或风暴期间经历的负载。工程师利用弹性模量预测结构对这些力量的反应，确保它们随着时间的推移保持安全和功能。除了建筑，弹性模量在制造过程中也发挥着至关重要的作用。例如，在生产汽车或机械部件时，制造商必须选择能够在操作应力下保持形状和完整性的材料。弹性模量帮助他们选择适当的材料，以避免过早失效，从而导致更安全、更可靠的产品。此外，弹性模量在生物力学领域也很重要。了解生物组织在应力下的行为对于开发医疗植入物和假肢至关重要。例如，骨骼的弹性模量与软组织有显著不同，而这种差异在设计将与身体整合的植入物时必须考虑。总之，弹性模量是影响各种应用中材料性能的关键属性。它的重要性跨越多个领域，包括建筑、制造和生物力学。通过理解和应用弹性模量的原理，工程师和设计师可以创造出更安全、更有效的产品和结构。随着技术的进步，准确测量和利用弹性模量的重要性只会继续增长，突显了该领域持续研究和发展的必要性。