permanent elongation

简明释义

永久伸长

英英释义

例句

1.The material experienced a permanent elongation after being subjected to high temperatures, resulting in a change in its dimensions.

该材料在高温下经历了永久性延伸，导致其尺寸发生了变化。

2.Engineers must account for permanent elongation when designing structures that will be exposed to constant stress.

工程师在设计将承受持续应力的结构时，必须考虑到永久性延伸。

3.In the study of metals, permanent elongation is an important factor that affects the material's strength.

在金属研究中，永久性延伸是影响材料强度的重要因素。

4.The rubber band showed signs of permanent elongation after being stretched beyond its limit repeatedly.

这条橡皮筋在多次被拉伸超过极限后，显示出永久性延伸的迹象。

5.The fabric underwent permanent elongation after washing, making it unsuitable for tailored clothing.

该面料在洗涤后经历了永久性延伸，使其不适合用于定制服装。

作文

In the realm of material science and engineering, the concept of permanent elongation refers to the irreversible deformation that occurs when a material is subjected to stress beyond its elastic limit. This phenomenon is particularly significant in understanding how materials behave under various loads and conditions. When a material is stretched, it initially deforms elastically, meaning it will return to its original shape once the load is removed. However, if the stress exceeds a certain threshold, the material undergoes permanent elongation (永久延伸), which signifies a change in its structure that cannot be undone. This behavior is crucial in many applications, especially in construction and manufacturing. For instance, steel beams are designed to withstand heavy loads, but if they are overloaded, they may experience permanent elongation (永久延伸), leading to structural failures. Engineers must account for this when designing buildings, bridges, and other infrastructures to ensure safety and durability. The ability to predict when permanent elongation (永久延伸) will occur allows engineers to create safer designs that can tolerate unexpected stresses. Moreover, the study of permanent elongation (永久延伸) extends beyond metal structures. Polymers, for example, exhibit unique properties when stretched. Some plastics can undergo significant permanent elongation (永久延伸) without breaking, making them ideal for applications where flexibility is essential. Understanding the conditions under which these materials experience permanent elongation (永久延伸) is vital for their effective use in various industries. Additionally, the concept of permanent elongation (永久延伸) is not limited to physical materials; it can also apply to biological systems. For example, muscles can experience permanent elongation (永久延伸) through consistent stretching and exercise. This adaptation allows athletes to improve their performance and flexibility over time. However, it is essential to approach such training carefully to avoid injury, as excessive stress can lead to damage rather than beneficial elongation. In conclusion, permanent elongation (永久延伸) is a critical concept that spans multiple fields, from engineering to biology. Understanding this phenomenon helps us design better materials and structures, optimize performance in sports, and appreciate the limits of elasticity in various contexts. As we continue to explore the properties of different materials and systems, the implications of permanent elongation (永久延伸) will remain a fundamental aspect of our understanding of the physical world.