nonelastic deformation

简明释义

非弹性变形

英英释义

例句

1.In geology, rocks can experience nonelastic deformation 非弹性变形 when subjected to immense pressure over time.

在地质学中，岩石在长时间受到巨大压力时可能会经历非弹性变形。

2.In materials science, understanding nonelastic deformation 非弹性变形 is crucial for developing stronger materials.

在材料科学中，理解非弹性变形对开发更强材料至关重要。

3.The rubber band eventually reached a point of nonelastic deformation 非弹性变形 after being stretched too far.

橡皮筋在被拉伸过度后最终达到了非弹性变形的程度。

4.When the metal was subjected to high stress, it underwent nonelastic deformation 非弹性变形, permanently changing its shape.

当金属受到高应力时，它经历了非弹性变形，永久改变了其形状。

5.Engineers must consider nonelastic deformation 非弹性变形 when designing structures that will bear heavy loads.

工程师在设计承受重载的结构时必须考虑非弹性变形。

作文

In the field of materials science and engineering, understanding the behavior of different materials under various forces is crucial. One important concept that often arises in this context is nonelastic deformation. This term refers to a permanent change in the shape or size of a material when it is subjected to stress that exceeds its elastic limit. Unlike elastic deformation, which is reversible and allows materials to return to their original shape once the stress is removed, nonelastic deformation results in a lasting alteration that cannot be undone.When a material undergoes nonelastic deformation, it means that the internal structure of the material has been altered at a molecular or atomic level. This can occur in various materials, including metals, polymers, and ceramics. For instance, when a metal is bent beyond its yield point, it will not return to its original shape; instead, it will retain a new form due to nonelastic deformation. This can lead to significant implications in engineering and design, as materials must be chosen carefully to ensure they can withstand expected loads without undergoing such irreversible changes.One common example of nonelastic deformation is seen in ductile materials like copper or aluminum. These metals can be stretched or compressed to a certain extent without breaking. However, if they are pushed beyond their limits, they will experience nonelastic deformation. This property is particularly advantageous in manufacturing processes such as forging or rolling, where materials are intentionally deformed to achieve desired shapes. Understanding how much force a material can endure before reaching the point of nonelastic deformation is essential for engineers to prevent structural failures in buildings, bridges, and other constructions.Another area where nonelastic deformation plays a significant role is in the design of safety features in vehicles. Crumple zones are designed to absorb energy during a collision, allowing parts of the vehicle to undergo nonelastic deformation. This helps to protect passengers by dissipating the energy of the impact, demonstrating how this type of deformation can be strategically used for safety.In contrast, brittle materials like glass or ceramics exhibit very little plasticity before breaking. They tend to fracture suddenly without much prior nonelastic deformation. This characteristic makes them less suitable for applications where flexibility and resilience are required. Engineers must carefully consider these properties when selecting materials for specific applications to avoid catastrophic failures.In summary, nonelastic deformation is a fundamental concept in materials science that signifies a permanent change in a material's shape or size due to applied stress beyond its elastic limit. It has critical implications in various fields, including engineering, manufacturing, and safety design. By understanding the principles of nonelastic deformation, professionals can make informed decisions about material selection and structural integrity, ultimately leading to safer and more efficient designs.

在材料科学和工程领域，理解不同材料在各种力作用下的行为至关重要。一个常常出现的重要概念是非弹性变形。这个术语指的是当材料受到超过其弹性极限的应力时，形状或大小发生的永久性变化。与弹性变形不同，弹性变形是可逆的，允许材料在应力移除后恢复到原始形状，而非弹性变形则导致无法逆转的持久改变。当材料经历非弹性变形时，这意味着材料的内部结构在分子或原子层面上已经发生了变化。这种情况可以发生在各种材料中，包括金属、聚合物和陶瓷。例如，当金属被弯曲超过其屈服点时，它将不会恢复到原来的形状；相反，由于非弹性变形，它将保持新的形状。这在工程和设计中会产生重大影响，因为材料必须仔细选择，以确保它们能够承受预期的载荷而不经历这种不可逆的变化。非弹性变形的一个常见例子可以在延展性材料如铜或铝中看到。这些金属可以在不破裂的情况下被拉伸或压缩到一定程度。然而，如果它们被施加超过其极限的力量，它们将经历非弹性变形。这种特性在锻造或轧制等制造过程中尤其有利，在这些过程中，材料被故意变形以达到所需的形状。了解材料在达到非弹性变形点之前可以承受多少力量，对于工程师来说至关重要，以防止建筑、桥梁和其他结构的失效。另一个非弹性变形发挥重要作用的领域是车辆安全功能的设计。碰撞吸能区被设计用来在碰撞过程中吸收能量，允许车辆的部分经历非弹性变形。这有助于通过消散冲击能量来保护乘客，展示了这种变形类型如何被战略性地用于安全。相比之下，脆性材料如玻璃或陶瓷在断裂前表现出非常少的塑性。它们往往在没有太多先前非弹性变形的情况下突然断裂。这一特性使它们在需要柔韧性和韧性的应用中不太适合。工程师在选择材料用于特定应用时必须仔细考虑这些特性，以避免灾难性的失效。总之，非弹性变形是材料科学中的一个基本概念，表示由于施加的应力超过其弹性极限而导致材料形状或大小的永久性变化。它在工程、制造和安全设计等多个领域具有重要意义。通过理解非弹性变形的原理，专业人士可以在材料选择和结构完整性方面做出明智的决策，从而最终实现更安全和更高效的设计。