allowable stress

简明释义

安全应力

英英释义

例句

1.The design of the bridge was based on the maximum allowable stress 允许应力 for the materials used.

这座桥的设计是基于所用材料的最大允许应力 允许应力。

2.Safety factors are applied to determine the allowable stress 允许应力 in engineering designs.

在工程设计中，安全系数用于确定允许应力 允许应力。

3.Engineers must ensure that the allowable stress 允许应力 is not exceeded to prevent structural failure.

工程师必须确保不超过允许应力 允许应力以防止结构失效。

4.In the analysis, we found that the calculated stress was below the allowable stress 允许应力 limit.

在分析中，我们发现计算的应力低于允许应力 允许应力限制。

5.The allowable stress 允许应力 for this type of steel is significantly higher than that of aluminum.

这种钢材的允许应力 允许应力显著高于铝材。

作文

Understanding the concept of allowable stress is crucial in engineering and construction fields. The term refers to the maximum stress that a material can withstand without experiencing failure or yielding. This value is determined through various testing methods, allowing engineers to ensure safety and integrity in their designs. For instance, when designing a bridge, engineers must calculate the allowable stress for the materials used, such as steel or concrete, to ensure that they can support the expected loads. The calculation of allowable stress often involves factors such as the material's yield strength, safety factors, and environmental conditions. Yield strength is the point at which a material begins to deform permanently, and it is a critical factor in determining how much load a structure can safely bear. Safety factors provide an additional margin of safety by accounting for uncertainties in material properties, loading conditions, and potential flaws. In practice, engineers use standardized codes and guidelines to establish allowable stress values for different materials and applications. These codes are developed based on extensive research and testing, ensuring that they reflect real-world conditions and risks. For example, the American Institute of Steel Construction (AISC) provides specifications for the allowable stresses in steel structures, helping engineers design safe and efficient buildings and bridges. Moreover, the concept of allowable stress extends beyond just static loads. It also applies to dynamic loads, such as those encountered in seismic or wind events. Engineers must consider how these forces may impact the structural integrity of a project, adjusting the allowable stress accordingly. By doing so, they can create resilient structures that can withstand unexpected conditions. In summary, allowable stress is a fundamental concept in structural engineering that ensures the safety and durability of constructions. By understanding and applying this principle, engineers can design structures that not only meet aesthetic and functional requirements but also protect lives and investments. As technology advances and new materials are developed, the methods for calculating allowable stress will continue to evolve, further enhancing the safety and performance of engineered systems.

理解允许应力的概念在工程和建筑领域至关重要。这个术语指的是材料在不发生失效或屈服的情况下能够承受的最大应力。这个值是通过各种测试方法确定的，使工程师能够确保设计的安全性和完整性。例如，在设计桥梁时，工程师必须计算所用材料（如钢或混凝土）的允许应力，以确保它们能够支撑预期的负荷。允许应力的计算通常涉及材料的屈服强度、安全系数和环境条件等因素。屈服强度是材料开始永久变形的点，它是确定结构可以安全承载多少负荷的关键因素。安全系数通过考虑材料特性、加载条件和潜在缺陷的不确定性，为安全提供额外的保障。在实践中，工程师使用标准化的规范和指南来建立不同材料和应用的允许应力值。这些规范是基于广泛的研究和测试制定的，确保它们反映现实世界的条件和风险。例如，美国钢结构协会（AISC）提供了钢结构的允许应力规格，帮助工程师设计安全高效的建筑和桥梁。此外，允许应力的概念不仅限于静态负荷。它同样适用于动态负荷，例如在地震或风事件中遇到的负荷。工程师必须考虑这些力量可能对项目的结构完整性产生影响，相应地调整允许应力。通过这样做，他们可以创建能够承受意外条件的坚固结构。总之，允许应力是结构工程中的一个基本概念，确保建筑物的安全性和耐久性。通过理解和应用这一原则，工程师可以设计出不仅满足美学和功能要求，还能保护生命和投资的结构。随着技术的进步和新材料的发展，计算允许应力的方法将继续演变，进一步增强工程系统的安全性和性能。