young's modulus

简明释义

弹性模数

英英释义

例句

1.The young's modulus 杨氏模量 of steel is significantly higher than that of aluminum, making it a preferred choice for construction.

钢的young's modulus 杨氏模量显著高于铝，因此它是建筑中更受欢迎的选择。

2.The testing lab provided a detailed report on the young's modulus 杨氏模量 of various plastics.

测试实验室提供了关于各种塑料的young's modulus 杨氏模量的详细报告。

3.In this experiment, we measured the young's modulus 杨氏模量 of rubber to understand its elasticity.

在这个实验中，我们测量了橡胶的young's modulus 杨氏模量以理解其弹性。

4.To design a bridge, engineers must consider the young's modulus 杨氏模量 of the materials used.

为了设计桥梁，工程师必须考虑所用材料的young's modulus 杨氏模量。

5.The engineer calculated the young's modulus 杨氏模量 of the material to ensure it could withstand the applied forces.

工程师计算了材料的young's modulus 杨氏模量，以确保其能够承受施加的力量。

作文

When we delve into the world of materials science and engineering, we often encounter various properties that define how materials behave under different conditions. One such crucial property is Young's modulus, which is a measure of the stiffness of a solid material. It quantifies the relationship between stress (force per unit area) and strain (deformation) in a material when it is subjected to tensile or compressive forces. Understanding Young's modulus is essential for engineers and designers as it helps them select appropriate materials for specific applications, ensuring safety and performance.To illustrate the importance of Young's modulus, consider the construction of a bridge. Engineers must choose materials that can withstand the weight of vehicles and environmental forces such as wind and earthquakes. If they select a material with a low Young's modulus, the bridge may bend or deform excessively under load, leading to catastrophic failure. Conversely, materials with a high Young's modulus are stiffer and can maintain their shape under similar conditions, making them more suitable for structural applications.The formula for Young's modulus is given by:E = σ / εwhere E is Young's modulus, σ is the stress applied to the material, and ε is the strain experienced by the material. This relationship highlights that a higher Young's modulus indicates a material that deforms less under a given load, which is a desirable trait in many engineering applications.Different materials exhibit varying values of Young's modulus. For instance, metals like steel have a high Young's modulus, typically around 200 GPa (gigapascals), indicating they are very stiff and resistant to deformation. On the other hand, rubber has a low Young's modulus, around 0.01 to 0.1 GPa, meaning it can stretch and deform significantly when force is applied. This difference in Young's modulus values explains why certain materials are chosen for specific purposes; for example, rubber is ideal for applications requiring flexibility, while steel is preferred for load-bearing structures.Understanding Young's modulus also plays a significant role in the field of biomechanics. For instance, human bones have a Young's modulus that allows them to support the weight of the body while remaining lightweight. Research into Young's modulus in biological tissues helps medical professionals design better implants and prosthetics that mimic the mechanical properties of natural tissues, ultimately improving patient outcomes.In conclusion, Young's modulus is a fundamental concept in materials science that helps us understand how materials respond to stress and strain. Its applications range from civil engineering to biomechanics, illustrating its significance in both theoretical and practical contexts. By comprehending Young's modulus, engineers and scientists can make informed decisions about material selection, ensuring the safety and effectiveness of their designs. As we continue to innovate and develop new materials, the importance of Young's modulus will undoubtedly remain a cornerstone of engineering principles, guiding us toward creating safer and more efficient structures and products.

当我们深入材料科学和工程的世界时，常常会遇到各种定义材料在不同条件下行为的特性。其中一个至关重要的特性是杨氏模量，它是固体材料刚度的量度。它量化了材料在受拉或压缩力作用下应力（单位面积上的力）与应变（变形）之间的关系。理解杨氏模量对于工程师和设计师至关重要，因为它帮助他们选择适合特定应用的材料，从而确保安全性和性能。为了说明杨氏模量的重要性，考虑一下桥梁的建设。工程师必须选择能够承受车辆重量和风、地震等环境力量的材料。如果他们选择了杨氏模量较低的材料，桥梁在负载下可能会过度弯曲或变形，导致灾难性的失败。相反，具有高杨氏模量的材料更加坚硬，可以在类似条件下保持其形状，使其更适合结构应用。杨氏模量的公式为：E = σ / ε其中E是杨氏模量，σ是施加于材料的应力，ε是材料经历的应变。这个关系强调了较高的杨氏模量表示在给定负载下变形较少的材料，这在许多工程应用中是一个理想的特性。不同材料表现出不同的杨氏模量值。例如，钢铁等金属的杨氏模量很高，通常约为200 GPa（千兆帕），这表明它们非常坚硬，抗变形能力强。另一方面，橡胶的杨氏模量较低，约为0.01到0.1 GPa，这意味着它在施加力时可以显著伸展和变形。这种杨氏模量值的差异解释了为什么某些材料被选择用于特定目的；例如，橡胶非常适合需要灵活性的应用，而钢铁则更适合承重结构。理解杨氏模量在生物力学领域也发挥着重要作用。例如，人类骨骼的杨氏模量使其能够支撑身体的重量，同时保持轻便。对生物组织中杨氏模量的研究帮助医疗专业人员设计更好的植入物和假肢，以模拟自然组织的机械特性，最终改善患者的治疗效果。总之，杨氏模量是材料科学中的一个基本概念，帮助我们理解材料如何响应应力和应变。它的应用范围从土木工程到生物力学，说明了它在理论和实际背景中的重要性。通过理解杨氏模量，工程师和科学家可以就材料选择做出明智的决定，确保其设计的安全性和有效性。随着我们不断创新和开发新材料，杨氏模量的重要性无疑将继续成为工程原则的基石，引导我们创造更安全、更高效的结构和产品。