plastic deformation

简明释义

塑性变形

英英释义

例句

1.When metal is subjected to stress beyond its yield strength, it undergoes plastic deformation (塑性变形), permanently altering its shape.

当金属受到超过其屈服强度的应力时，它会经历塑性变形，(塑性变形)，永久改变其形状。

2.The plastic deformation (塑性变形) of the clay allows it to be molded into various shapes.

粘土的塑性变形 (塑性变形)使其能够被塑造成各种形状。

3.The study of plastic deformation (塑性变形) helps engineers predict how materials will behave under different loads.

对塑性变形 (塑性变形)的研究帮助工程师预测材料在不同负载下的行为。

4.During the manufacturing process, metals often experience plastic deformation (塑性变形) when they are rolled or forged.

在制造过程中，金属在轧制或锻造时通常会经历塑性变形 (塑性变形)。

5.In engineering, understanding plastic deformation (塑性变形) is crucial for designing structures that can withstand loads without failing.

在工程中，理解塑性变形 (塑性变形)对于设计能够承受负荷而不失效的结构至关重要。

作文

Plastic deformation is a fundamental concept in materials science and engineering, referring to the permanent change in shape or size of a material when subjected to external forces. Unlike elastic deformation, which is reversible, plastic deformation (塑性变形) occurs when the stress applied to a material exceeds its yield strength. This means that once the force is removed, the material does not return to its original shape, but retains the new form it has taken on. Understanding plastic deformation (塑性变形) is crucial for engineers and designers as it affects the performance and durability of materials used in various applications.When materials undergo plastic deformation (塑性变形), their internal structure changes. The atomic arrangement within the material shifts, leading to dislocations—a term used to describe irregularities within the crystal structure. These dislocations allow atoms to move more easily under stress, facilitating the permanent deformation. For instance, metals are known to exhibit significant plastic deformation (塑性变形) before fracturing, making them ideal for manufacturing processes such as forging and rolling.In everyday life, we encounter plastic deformation (塑性变形) in various forms. Take, for example, a paper clip. When you bend it, the metal undergoes plastic deformation (塑性变形) and retains the new shape. This property is what allows us to create different shapes and forms from materials without them breaking. Similarly, when constructing buildings, engineers must consider how the materials will behave under load. They need to ensure that the materials can withstand the forces applied to them while also allowing for some degree of plastic deformation (塑性变形) to prevent catastrophic failure.The study of plastic deformation (塑性变形) also extends to the field of geology. For example, rocks can experience plastic deformation (塑性变形) over long periods due to tectonic forces. This slow, gradual change can lead to the formation of mountains and other geological features. Understanding how rocks deform under pressure helps geologists predict earthquakes and assess the stability of slopes and other structures.In conclusion, plastic deformation (塑性变形) is an essential phenomenon that plays a vital role in both engineering and natural processes. By understanding how materials respond to stress and the implications of plastic deformation (塑性变形), we can improve material design and predict the behavior of structures in various environments. Whether in the creation of everyday objects or in the study of Earth's geology, the principles of plastic deformation (塑性变形) remain a cornerstone of material science that impacts our daily lives and the world around us.

塑性变形是材料科学和工程中的一个基本概念，指的是当材料受到外力作用时形状或尺寸的永久变化。与可逆的弹性变形不同，塑性变形（塑性变形）发生在施加于材料的应力超过其屈服强度时。这意味着一旦移除外力，材料不会恢复到原来的形状，而是保留它所采取的新形状。理解塑性变形（塑性变形）对工程师和设计师至关重要，因为它影响了材料在各种应用中的性能和耐用性。当材料经历塑性变形（塑性变形）时，其内部结构发生变化。材料内部的原子排列发生位移，导致位错—用于描述晶体结构内不规则性的术语。这些位错使得原子在应力下更容易移动，从而促进永久变形。例如，金属在断裂前通常表现出显著的塑性变形（塑性变形），使其成为锻造和轧制等制造过程的理想选择。在日常生活中，我们以各种形式遇到塑性变形（塑性变形）。例如，一个回形针。当你弯曲它时，金属经历了塑性变形（塑性变形）并保留了新形状。这种特性使我们能够从材料中创建不同的形状和形式，而不会使它们断裂。同样，在建筑施工时，工程师必须考虑材料在负载下的行为。他们需要确保材料能够承受施加于它们的力量，同时也允许一定程度的塑性变形（塑性变形）以防止灾难性失败。对塑性变形（塑性变形）的研究还扩展到地质学领域。例如，由于构造力，岩石可以在长时间内经历塑性变形（塑性变形）。这种缓慢、逐渐的变化可以导致山脉和其他地质特征的形成。理解岩石在压力下如何变形有助于地质学家预测地震并评估坡度和其他结构的稳定性。总之，塑性变形（塑性变形）是一个重要现象，在工程和自然过程中的作用至关重要。通过理解材料如何对应力作出反应以及塑性变形（塑性变形）的影响，我们可以改善材料设计并预测结构在各种环境中的行为。无论是在日常物品的创造中，还是在对地球地质的研究中，塑性变形（塑性变形）的原理仍然是材料科学的基石，影响着我们的日常生活和周围的世界。