tensile stress

简明释义

抗拉应力

英英释义

例句

1.Engineers must calculate the tensile stress (拉伸应力) on steel cables to ensure safety.

工程师必须计算钢缆上的拉伸应力以确保安全。

2.The tensile stress (拉伸应力) on the rope was measured during the load test.

在负载测试中测量了绳索上的拉伸应力。

3.The tensile stress (拉伸应力) in the material exceeded its yield strength, leading to failure.

材料中的拉伸应力超过了其屈服强度，导致了失效。

4.In construction, understanding tensile stress (拉伸应力) is crucial for designing safe structures.

在建筑中，理解拉伸应力对于设计安全结构至关重要。

5.The bridge was designed to withstand high tensile stress (拉伸应力) from the weight of vehicles.

这座桥梁的设计能够承受来自车辆重量的高拉伸应力。

作文

Understanding the concept of tensile stress is crucial for anyone involved in engineering, architecture, or materials science. Tensile stress refers to the internal force per unit area that develops in a material when it is subjected to stretching or pulling forces. This phenomenon occurs when a material is elongated, leading to deformation. It is essential to grasp this concept as it plays a significant role in determining how materials behave under various loads, which is fundamental in designing safe and effective structures.When a material experiences tensile stress, it is important to note that the stress is calculated by dividing the force applied to the material by the cross-sectional area over which that force is distributed. The formula for tensile stress can be expressed as: \[ \sigma = \frac{F}{A} \] where \( \sigma \) is the tensile stress, \( F \) is the force applied, and \( A \) is the cross-sectional area. This equation illustrates how increasing the force or decreasing the area can lead to higher levels of tensile stress. In practical applications, understanding tensile stress is vital for selecting appropriate materials for construction and manufacturing. For instance, steel is commonly used in construction due to its high tensile strength, which allows it to withstand significant loads without failing. On the other hand, materials with low tensile strength, such as certain plastics, may not be suitable for load-bearing applications. Moreover, engineers must consider the safety factors associated with tensile stress. When designing structures, they often apply a safety factor to ensure that the material can withstand unexpected loads or stresses. This means that the actual load a material can carry is often much higher than the load it is designed for, providing a margin of safety. Another critical aspect of tensile stress is its relationship with material properties such as elasticity and ductility. Elastic materials can return to their original shape after the removal of the stress, while ductile materials can undergo significant deformation before failure. Understanding these properties helps engineers predict how materials will behave under different conditions, which is essential for ensuring the longevity and safety of structures.In conclusion, tensile stress is a fundamental concept that underpins many aspects of engineering and materials science. By understanding how it works and its implications on material selection and structural design, professionals can create safer, more reliable products and structures. Whether you are designing a bridge, a building, or any other structure, recognizing the importance of tensile stress is key to successful engineering practices.

理解拉伸应力的概念对于任何参与工程、建筑或材料科学的人来说都是至关重要的。拉伸应力是指当材料受到拉伸或拉力时，在材料内部产生的单位面积内的力。这种现象发生在材料被拉长时，导致变形。掌握这个概念至关重要，因为它在确定材料在各种载荷下的行为中发挥着重要作用，这对于设计安全有效的结构是基础。当材料经历拉伸应力时，重要的是要注意应力是通过将施加在材料上的力除以该力分布的横截面积来计算的。拉伸应力的公式可以表示为：\[ \sigma = \frac{F}{A} \] 其中\( \sigma \)是拉伸应力，\( F \)是施加的力，\( A \)是横截面积。这个方程说明了增加力或减少面积如何导致更高水平的拉伸应力。在实际应用中，理解拉伸应力对于选择合适的建筑和制造材料至关重要。例如，钢材因其高拉伸强度而被广泛用于建筑，使其能够承受显著的载荷而不发生失效。另一方面，拉伸强度低的材料，如某些塑料，可能不适合承载应用。此外，工程师必须考虑与拉伸应力相关的安全因素。在设计结构时，他们通常会应用安全系数，以确保材料能够承受意外载荷或应力。这意味着材料能够承载的实际载荷通常远高于其设计载荷，从而提供安全裕度。拉伸应力的另一个关键方面是它与材料属性如弹性和延展性的关系。弹性材料在去除应力后可以恢复到原始形状，而延展性材料则可以在失效前经历显著的变形。理解这些属性帮助工程师预测材料在不同条件下的行为，这对于确保结构的耐久性和安全性至关重要。总之，拉伸应力是支撑工程和材料科学许多方面的基本概念。通过理解其工作原理及其对材料选择和结构设计的影响，专业人员可以创建更安全、更可靠的产品和结构。无论您是在设计桥梁、建筑物还是其他任何结构，认识到拉伸应力的重要性是成功工程实践的关键。