bulk modulus

简明释义

体积弹性模量

英英释义

例句

1.The bulk modulus 体积模量 of rubber is significantly lower than that of steel, making it more compressible.

橡胶的体积模量 bulk modulus明显低于钢铁，使其更容易被压缩。

2.Materials with a high bulk modulus 体积模量 are typically used in applications where resistance to compression is required.

具有高体积模量 bulk modulus的材料通常用于需要抵抗压缩的应用中。

3.To calculate the bulk modulus 体积模量, you need to know the change in volume and the pressure applied.

要计算体积模量 bulk modulus，您需要知道体积的变化和施加的压力。

4.The bulk modulus 体积模量 of a material can be determined using ultrasonic testing methods.

材料的体积模量 bulk modulus可以通过超声波测试方法来确定。

5.In fluid mechanics, the bulk modulus 体积模量 is crucial for understanding how fluids behave under pressure.

在流体力学中，体积模量 bulk modulus对理解流体在压力下的行为至关重要。

作文

The concept of bulk modulus refers to a material's resistance to uniform compression. It is a fundamental property in the field of materials science and engineering, playing a crucial role in understanding how materials behave under pressure. The bulk modulus is defined mathematically as the ratio of volumetric stress to the change in volume strain. In simpler terms, it measures how much a material will compress when subjected to an external force. A high bulk modulus indicates that the material is stiff and does not compress easily, while a low bulk modulus suggests that the material is more flexible and can be compressed significantly under pressure.Understanding the bulk modulus is essential for engineers and scientists when designing structures and selecting materials for various applications. For instance, in construction, materials like concrete and steel have high bulk moduli, making them suitable for supporting heavy loads without significant deformation. On the other hand, materials with low bulk moduli, such as rubber, are used in applications where flexibility and cushioning are required.The bulk modulus is also important in fluid mechanics. For fluids, the bulk modulus quantifies how incompressible a fluid is. Water, for example, has a relatively high bulk modulus, which means it resists compression well. This property is crucial in hydraulic systems, where fluids must transmit force effectively without significant volume changes. Understanding the bulk modulus of a fluid allows engineers to design more efficient systems that can withstand varying pressures without failing.In addition to practical applications, the bulk modulus has theoretical significance in understanding the behavior of materials at the atomic level. When a force is applied to a material, its atoms are displaced from their equilibrium positions. The bulk modulus provides insight into how these atomic arrangements respond to external stresses. This knowledge is vital in fields such as solid-state physics and materials engineering, where predicting material behavior under different conditions is crucial.Moreover, the bulk modulus can vary with temperature and pressure, making it a dynamic property. For example, as temperature increases, the bulk modulus of most materials tends to decrease, indicating that they become more compressible. This temperature dependence is particularly relevant in applications where materials are exposed to extreme conditions, such as aerospace engineering or deep-sea exploration. Engineers must account for these variations to ensure the reliability and safety of their designs.In conclusion, the bulk modulus is a vital property that describes how materials respond to compression. Its significance spans across various fields, including construction, fluid mechanics, and materials science. By understanding the bulk modulus, engineers can make informed decisions about material selection and design, ensuring that structures and systems perform effectively under pressure. As technology advances, the study of bulk modulus continues to evolve, revealing deeper insights into the behavior of materials and enhancing our ability to innovate in engineering and science.

体积模量（bulk modulus）是指材料对均匀压缩的抵抗能力。它是材料科学和工程领域的一个基本性质，在理解材料在压力下的行为方面发挥着至关重要的作用。bulk modulus 从数学上定义为体积应力与体积应变变化的比率。简单来说，它测量材料在施加外力时会压缩多少。高的bulk modulus 表明材料刚性强，不易压缩，而低的bulk modulus 则表明材料更具柔韧性，可以在压力下显著压缩。理解bulk modulus 对于工程师和科学家在设计结构和选择各种应用材料时至关重要。例如，在建筑中，混凝土和钢材等材料具有较高的bulk modulus，使它们适合承受重负荷而不会出现显著变形。另一方面，像橡胶这样的低bulk modulus 材料则用于需要灵活性和缓冲的应用。在流体力学中，bulk modulus 也很重要。对于流体而言，bulk modulus 量化了流体的不压缩性。例如，水的bulk modulus 相对较高，这意味着它能很好地抵抗压缩。这一特性在液压系统中至关重要，因为流体必须有效地传递力，而不发生显著的体积变化。了解流体的bulk modulus 可以让工程师设计出更高效的系统，以承受不同压力而不失效。除了实际应用之外，bulk modulus 在理解材料在原子水平上的行为方面具有理论意义。当施加力于材料时，其原子会从平衡位置偏移。bulk modulus 提供了关于这些原子排列如何响应外部应力的见解。这一知识在固态物理和材料工程等领域至关重要，在这些领域中，预测材料在不同条件下的行为至关重要。此外，bulk modulus 随温度和压力的变化而变化，使其成为一个动态属性。例如，随着温度的升高，大多数材料的bulk modulus 倾向于降低，这表明它们变得更易压缩。这种温度依赖性在材料暴露于极端条件下的应用中尤为相关，例如航空航天工程或深海探测。工程师必须考虑这些变化，以确保设计的可靠性和安全性。总之，bulk modulus 是描述材料对压缩响应的重要属性。它的重要性跨越多个领域，包括建筑、流体力学和材料科学。通过理解bulk modulus，工程师可以就材料选择和设计做出明智的决策，确保结构和系统在压力下有效运行。随着技术的进步，bulk modulus 的研究不断发展，揭示了材料行为的更深层次见解，并增强了我们在工程和科学领域的创新能力。