tensile stress

简明释义

抗拉应力

英英释义

例句

1.Engineers must calculate the tensile stress in materials to prevent structural failure.

工程师必须计算材料中的拉伸应力以防止结构失效。

2.In a tensile test, the tensile stress is measured until the material breaks.

在拉伸测试中，拉伸应力会被测量直到材料断裂。

3.The tensile stress on the cable increased significantly during the storm.

在暴风雨期间，电缆上的拉伸应力显著增加。

4.Understanding tensile stress is crucial for designing safe buildings.

理解拉伸应力对设计安全建筑至关重要。

5.The bridge was designed to withstand high tensile stress, ensuring it remains safe under heavy loads.

这座桥的设计能够承受高拉伸应力，确保在重载下保持安全。

作文

Tensile stress is a fundamental concept in the field of materials science and engineering. It refers to the force per unit area that is applied to a material in a way that tends to stretch it. When a material is subjected to a load, it can either deform elastically or plastically, depending on the magnitude of the applied stress. Understanding tensile stress (拉伸应力) is crucial for engineers and designers as it helps them predict how materials will behave under various loading conditions.In practical applications, tensile stress plays a vital role in determining the strength and durability of structures. For example, in the construction of buildings, bridges, and other infrastructures, engineers must ensure that the materials used can withstand the tensile stresses they will encounter during their service life. This involves selecting appropriate materials and designing structural components that can handle these stresses without failing.The concept of tensile stress (拉伸应力) is often illustrated using a simple experiment involving a rubber band. When you pull on a rubber band, it stretches, and the force you apply creates a tensile stress within the material. The amount of stretching is proportional to the applied force until the elastic limit is reached. Beyond this point, the rubber band will not return to its original shape, demonstrating plastic deformation.Another important aspect of tensile stress (拉伸应力) is its relationship with strain, which measures how much a material deforms in response to the applied stress. The ratio of tensile stress to strain is known as Young's modulus, a critical parameter that indicates the stiffness of a material. Materials with high Young's modulus values are stiffer and can withstand greater tensile stresses before deforming significantly.In engineering design, it is essential to consider factors such as safety margins and failure modes when dealing with tensile stress (拉伸应力). Engineers often perform stress analysis to determine whether a component can safely bear the expected loads. This analysis includes calculating the maximum tensile stress that the material can withstand and comparing it with the actual stresses that will be applied during use.Failure due to excessive tensile stress can lead to catastrophic consequences. For instance, if a bridge experiences tensile stresses beyond its design limits, it can result in structural failure, endangering lives and property. Therefore, understanding tensile stress (拉伸应力) is not just an academic exercise; it has real-world implications that affect safety and reliability.In conclusion, tensile stress (拉伸应力) is a critical concept that underpins the design and analysis of materials and structures. By grasping the principles of tensile stress, engineers can make informed decisions about material selection, design specifications, and safety considerations. As technology advances and new materials are developed, the importance of understanding tensile stress will only continue to grow, ensuring that our built environment remains safe and functional for future generations.