contraction coefficient

简明释义

收缩系数

英英释义

例句

1.The contraction coefficient of the polymer was measured to predict its behavior under temperature changes.

聚合物的收缩系数被测量以预测其在温度变化下的行为。

2.Manufacturers often provide the contraction coefficient of materials to help designers make informed choices.

制造商通常提供材料的收缩系数以帮助设计师做出明智的选择。

3.The engineer calculated the contraction coefficient to determine how much the material would shrink when cooled.

工程师计算了收缩系数以确定材料在冷却时会收缩多少。

4.When designing a bridge, engineers must account for the contraction coefficient of the steel used.

在设计桥梁时，工程师必须考虑所用钢材的收缩系数。

5.In the construction project, understanding the contraction coefficient is crucial for ensuring structural integrity.

在建筑项目中，理解收缩系数对确保结构完整性至关重要。

作文

In the field of material science and engineering, understanding the properties of materials is crucial for designing structures that can withstand various forces and environmental conditions. One important property that engineers often consider is the contraction coefficient, which refers to the degree to which a material shrinks when it cools or dries out. This property is particularly significant in industries such as construction, manufacturing, and aerospace, where precise tolerances are required to ensure the integrity and functionality of components.The contraction coefficient is typically expressed as a ratio or a percentage, indicating how much a material will contract per unit length for each degree of temperature change. For example, if a metal has a contraction coefficient of 12 x 10^-6 /°C, it means that for every degree Celsius decrease in temperature, the metal will shrink by 12 micrometers for every meter of length. Understanding this property helps engineers predict how materials will behave under varying temperatures, which is essential for preventing structural failures.When selecting materials for a project, engineers must take into account the contraction coefficient alongside other thermal properties such as expansion coefficients and thermal conductivity. A material with a high contraction coefficient may not be suitable for applications where it will experience significant temperature fluctuations, as it could lead to cracking, warping, or other forms of damage. Conversely, materials with low contraction coefficients are often preferred for precision applications, such as in aerospace components, where even minor dimensional changes can have serious implications.Moreover, the contraction coefficient can vary significantly between different materials. For instance, metals generally exhibit lower contraction coefficients compared to polymers, which can expand and contract more dramatically with temperature changes. This variability necessitates careful consideration during the design phase of any engineering project. Engineers often conduct simulations or experiments to measure the contraction coefficient of materials under specific conditions, ensuring that their predictions align with real-world behavior.Additionally, the contraction coefficient is not only relevant in terms of temperature changes but also in the context of moisture content. Many materials, especially wood and concrete, will shrink when they lose moisture and swell when they absorb it. The ability to accurately assess these changes is vital for maintaining the stability and longevity of structures. Therefore, understanding the contraction coefficient in relation to both thermal and moisture variations is essential for engineers.In conclusion, the contraction coefficient is a fundamental property that plays a critical role in material selection and structural design. By understanding how different materials respond to temperature and moisture changes, engineers can make informed decisions that enhance the safety and durability of their projects. As technology continues to advance and new materials are developed, ongoing research into the contraction coefficient will remain vital for pushing the boundaries of engineering innovation.

在材料科学和工程领域，理解材料的特性对设计能够承受各种力和环境条件的结构至关重要。工程师们经常考虑的一个重要特性是收缩系数，它指的是材料在冷却或干燥时收缩的程度。这个特性在建筑、制造和航空航天等行业中尤为重要，因为这些行业要求非常精确的公差，以确保组件的完整性和功能。收缩系数通常以比率或百分比表示，指示材料在每单位长度上因温度变化而收缩的程度。例如，如果一种金属的收缩系数为12 x 10^-6 /°C，这意味着每降低一摄氏度，金属将在每米长度上收缩12微米。理解这一特性有助于工程师预测材料在不同温度下的行为，这对于防止结构故障至关重要。在选择项目材料时，工程师必须将收缩系数与其他热特性（如膨胀系数和导热性）一起考虑。具有高收缩系数的材料可能不适合温度波动较大的应用，因为这可能导致裂纹、变形或其他形式的损坏。相反，具有低收缩系数的材料通常更适合用于精密应用，例如航空航天组件，在这些应用中，即使是微小的尺寸变化也可能产生严重影响。此外，不同材料之间的收缩系数可能会显著不同。例如，金属的收缩系数通常低于聚合物，后者在温度变化时可能会更剧烈地膨胀和收缩。这种变化性在任何工程项目的设计阶段都需要仔细考虑。工程师通常会进行模拟或实验，以测量特定条件下材料的收缩系数，确保他们的预测与实际行为一致。此外，收缩系数不仅与温度变化相关，还与湿度含量有关。许多材料，特别是木材和混凝土，在失去水分时会收缩，而在吸收水分时会膨胀。准确评估这些变化的能力对于维持结构的稳定性和耐久性至关重要。因此，理解收缩系数与热量和湿度变化之间的关系对于工程师来说是必不可少的。总之，收缩系数是一个基本特性，在材料选择和结构设计中发挥着关键作用。通过理解不同材料如何响应温度和湿度变化，工程师可以做出明智的决策，从而增强项目的安全性和耐用性。随着技术的不断进步和新材料的开发，对收缩系数的持续研究将对推动工程创新的边界保持重要意义。