bulk modulus

简明释义

体积弹性模量

英英释义

例句

1.When analyzing the acoustic properties of a substance, the bulk modulus plays a key role in determining sound speed.

在分析物质的声学特性时，体积模量在确定声速方面起着关键作用。

2.In engineering, understanding the bulk modulus of materials is crucial for designing structures that can withstand pressure.

在工程中，了解材料的体积模量对于设计能够承受压力的结构至关重要。

3.Geologists often measure the bulk modulus of rocks to understand their behavior under stress.

地质学家通常测量岩石的体积模量以了解其在应力下的行为。

4.The bulk modulus of water is significantly lower than that of metals, making it more compressible.

水的体积模量明显低于金属，使其更易被压缩。

5.The bulk modulus of rubber is much lower compared to that of steel, indicating its high elasticity.

橡胶的体积模量远低于钢铁，表明其高度弹性。

作文

The study of materials and their properties is crucial in various fields, including engineering, physics, and materials science. One important property that often comes into play is the concept of bulk modulus, which is a measure of a material's resistance to uniform compression. When we apply pressure to an object, it tends to change its volume; the bulk modulus quantifies how much it resists that change. It is defined as the ratio of the infinitesimal pressure increase to the resulting decrease in volume. In simpler terms, a high bulk modulus indicates that a material is stiff and does not compress easily, while a low bulk modulus suggests that the material can be compressed more readily.Understanding the bulk modulus is essential in many practical applications. For example, in civil engineering, when designing buildings or bridges, engineers must consider the materials used and their bulk modulus. Materials like concrete and steel have high bulk moduli, making them suitable for structures that need to withstand significant loads without deforming. Conversely, softer materials with lower bulk moduli may be used in applications where flexibility is more critical than strength, such as in cushioning or insulation.Another area where the bulk modulus plays a vital role is in the field of acoustics. The speed of sound in a medium is influenced by its bulk modulus and density. A material with a high bulk modulus will transmit sound waves faster than one with a lower bulk modulus. This principle is particularly important in designing musical instruments, where the choice of materials affects the sound quality and resonance.Moreover, the bulk modulus is also relevant in fluid mechanics. For fluids, the bulk modulus describes how incompressible a fluid is under pressure. Water, for instance, has a relatively high bulk modulus, which means it does not compress significantly under pressure. This property is crucial in hydraulic systems, where the incompressibility of fluids allows for efficient force transmission.In summary, the bulk modulus is a fundamental concept that helps us understand how materials behave under pressure. Its implications span across various fields, from construction and engineering to acoustics and fluid dynamics. By grasping the significance of the bulk modulus, we can make informed decisions about material selection and application, ensuring that structures are safe, sound, and effective in their intended purposes. As we continue to explore new materials and technologies, the bulk modulus will remain a key factor in our understanding of material behavior and performance.

材料及其性质的研究在工程、物理和材料科学等多个领域至关重要。其中一个常常涉及的重要属性是体积模量的概念，它是衡量材料对均匀压缩抵抗能力的指标。当我们对物体施加压力时，它会改变其体积；体积模量量化了它对这种变化的抵抗程度。它被定义为微小压力增加与随之而来的体积减少之间的比率。简单来说，高体积模量表明材料坚硬，不易压缩，而低体积模量则表明材料更容易被压缩。理解体积模量在许多实际应用中至关重要。例如，在土木工程中，设计建筑或桥梁时，工程师必须考虑所用材料及其体积模量。混凝土和钢材等材料具有高体积模量，使其适合承受巨大负荷而不变形的结构。相反，柔软的材料（如体积模量较低的材料）可能用于灵活性比强度更重要的应用，例如缓冲或绝缘。另一个体积模量发挥重要作用的领域是声学。在介质中，声音的传播速度受其体积模量和密度的影响。具有高体积模量的材料会比低体积模量的材料更快地传递声波。这一原理在设计乐器时尤其重要，因为材料的选择会影响音质和共鸣。此外，体积模量在流体力学中也相关。对于流体而言，体积模量描述了流体在压力下的不可压缩性。例如，水的体积模量相对较高，这意味着它在压力下不会显著压缩。这一特性在液压系统中至关重要，因为流体的不可压缩性允许有效的力传递。总之，体积模量是一个基本概念，有助于我们理解材料在压力下的行为。它的影响遍及多个领域，从建筑和工程到声学和流体动力学。通过掌握体积模量的重要性，我们可以在材料选择和应用上做出明智的决定，确保结构安全、可靠，并有效实现其预期目的。随着我们继续探索新材料和新技术，体积模量将始终是我们理解材料行为和性能的关键因素。