elastic strain

简明释义

弹性应变

英英释义

例句

1.In engineering, understanding elastic strain 弹性应变 is crucial for predicting how materials will behave under load.

在工程中，理解弹性应变对预测材料在载荷下的行为至关重要。

2.The material exhibited significant elastic strain 弹性应变 when subjected to tensile testing.

该材料在拉伸测试中表现出显著的弹性应变。

3.The elastic strain 弹性应变 limit of the alloy was determined to be higher than that of steel.

该合金的弹性应变极限被确定为高于钢材的水平。

4.During the experiment, we measured the elastic strain 弹性应变 in the rubber sample.

在实验中，我们测量了橡胶样本中的弹性应变。

5.The bridge was designed to accommodate elastic strain 弹性应变 caused by temperature fluctuations.

这座桥的设计考虑到了因温度波动引起的弹性应变。

作文

Elasticity is a fundamental concept in physics and engineering, particularly when dealing with materials. One of the key aspects of elasticity is the phenomenon known as elastic strain, which refers to the deformation of a material that occurs when it is subjected to stress. When a material is stretched or compressed, it undergoes changes in shape or size, but if the stress is removed, it returns to its original form. This ability to return to its original shape is what distinguishes elastic strain from plastic strain, where the material remains deformed even after the stress is removed.Understanding elastic strain is crucial for engineers and designers who work with various materials. For example, when designing bridges, buildings, or any structures that will experience loads, it is essential to consider how materials will behave under different forces. Engineers must ensure that the materials used can withstand the stresses they will encounter without undergoing permanent deformation. This is where the concept of elastic strain comes into play.In practical terms, elastic strain can be calculated using Hooke's Law, which states that the strain in a material is proportional to the applied stress, as long as the material remains within its elastic limit. The formula is expressed as: \[ \text{Stress} = E \times \text{Strain} \] where E is the modulus of elasticity, a measure of a material's stiffness. This relationship allows engineers to predict how much a material will deform under a given load, ensuring that structures are both safe and efficient.Moreover, the study of elastic strain extends beyond just traditional construction materials like steel and concrete. It also applies to polymers, composites, and biological materials, each exhibiting unique elastic properties. For instance, rubber bands can stretch significantly and still return to their original shape, showcasing high elastic strain. In contrast, metals may exhibit less visible deformation but can still experience significant elastic strain before yielding.In addition to engineering applications, understanding elastic strain is vital in various scientific fields. For example, in geology, the concept helps explain how rocks deform under tectonic forces. When stress accumulates in the Earth's crust, it can lead to an elastic strain that eventually results in earthquakes when the stress exceeds the material's elastic limit.Furthermore, in the field of biomechanics, elastic strain plays a role in understanding how biological tissues respond to mechanical forces. Tendons and ligaments, for example, exhibit elastic strain when subjected to tension, allowing them to absorb and release energy during movement, which is crucial for athletic performance.In conclusion, elastic strain is a vital concept that permeates various disciplines, from engineering to geology and biology. By understanding how materials behave under stress and how they can return to their original shape, we can make informed decisions in design, construction, and analysis. The ability to predict and manage elastic strain not only ensures the safety and longevity of structures but also enhances our understanding of natural phenomena and biological systems. As we continue to explore the properties of materials, the significance of elastic strain will undoubtedly remain a cornerstone of scientific and engineering advancements.

弹性是物理学和工程学中的一个基本概念，特别是在处理材料时。弹性的一个关键方面是被称为弹性应变的现象，它指的是材料在施加应力时发生的变形。当材料被拉伸或压缩时，它会经历形状或大小的变化，但如果去除应力，它会恢复到原来的形状。这种恢复到原始形状的能力使得弹性应变与塑性应变区分开来，后者在去除应力后材料仍然保持变形。理解弹性应变对于从事各种材料工作的工程师和设计师至关重要。例如，在设计桥梁、建筑物或任何将承受载荷的结构时，必须考虑材料在不同力量下的行为。工程师必须确保所用材料能够承受它们将遇到的应力，而不会发生永久变形。这就是弹性应变概念发挥作用的地方。在实际应用中，可以使用胡克定律计算弹性应变，该定律指出，当材料保持在其弹性极限内时，材料的应变与施加的应力成正比。公式表达为：\[ \text{应力} = E \times \text{应变} \]其中E是弹性模量，表示材料的刚度。这种关系使工程师能够预测在给定负载下材料将变形多少，从而确保结构既安全又高效。此外，弹性应变的研究不仅限于传统的建筑材料如钢和混凝土。它还适用于聚合物、复合材料和生物材料，每种材料都表现出独特的弹性特性。例如，橡皮筋可以显著拉伸并仍能恢复到原始形状，展示了高弹性应变。相比之下，金属可能表现出较少的可见变形，但在屈服之前仍然可以经历显著的弹性应变。除了工程应用外，理解弹性应变在各个科学领域也至关重要。例如，在地质学中，这一概念有助于解释岩石在构造力下的变形。当地壳中的应力积累时，可能导致弹性应变，最终在应力超过材料的弹性极限时导致地震。此外，在生物力学领域，弹性应变在理解生物组织如何响应机械力量方面发挥着重要作用。例如，肌腱和韧带在受到拉伸时表现出弹性应变，使它们在运动过程中能够吸收和释放能量，这对运动表现至关重要。总之，弹性应变是一个重要的概念，渗透到各个学科，从工程到地质学和生物学。通过理解材料在应力下的行为以及它们如何恢复到原始形状，我们可以在设计、建造和分析中做出明智的决策。预测和管理弹性应变的能力不仅确保了结构的安全性和耐久性，还增强了我们对自然现象和生物系统的理解。随着我们继续探索材料的性质，弹性应变的重要性无疑将继续成为科学和工程进步的基石。