stress concentration

简明释义

应力集中

英英释义

例句

1.Finite element analysis was performed to identify areas of stress concentration 应力集中 in the structure.

进行了有限元分析，以识别结构中应力集中 stress concentration的区域。

2.To minimize stress concentration 应力集中, fillets were added to the corners of the part.

为了最小化应力集中 stress concentration，在零件的角落添加了圆角。

3.The failure of the component was attributed to stress concentration 应力集中 due to poor material selection.

该组件的失效归因于材料选择不当导致的应力集中 stress concentration。

4.The engineer explained how the design could lead to stress concentration 应力集中 around the bolt holes.

工程师解释了设计如何导致螺栓孔周围的应力集中 stress concentration。

5.In bridge construction, it is crucial to analyze stress concentration 应力集中 at points where loads are applied.

在桥梁建设中，分析施加载荷的点的应力集中 stress concentration是至关重要的。

作文

Stress concentration is a critical concept in the field of engineering and materials science. It refers to the occurrence of localized increases in stress within a material, often due to geometrical discontinuities or imperfections. Understanding stress concentration (应力集中) is essential for engineers as it can significantly affect the performance and durability of structures and components. When designing mechanical parts, engineers must consider various factors that can lead to stress concentration (应力集中). These factors include sharp corners, holes, notches, and other irregularities that disrupt the uniform distribution of stress across a material. For instance, if a metal beam has a hole drilled through it, the area around the hole will experience higher stress than the rest of the beam. This localized stress can lead to fatigue failure if the material is subjected to repeated loading cycles.One common method to analyze stress concentration (应力集中) is through the use of finite element analysis (FEA). This computational technique allows engineers to simulate how stress is distributed throughout a component under various loading conditions. By identifying areas of high stress, engineers can make informed decisions about design modifications to reduce the likelihood of failure. For example, they might choose to round off sharp corners or reinforce critical areas to distribute stress more evenly.Another important aspect of stress concentration (应力集中) is its impact on fatigue life. Materials can fail not only due to excessive loads but also from repeated stress cycles that may be below the material's ultimate strength. The presence of stress concentration (应力集中) can significantly shorten the fatigue life of a component, leading to unexpected failures in service. Therefore, understanding and mitigating stress concentration (应力集中) is vital for ensuring the reliability of mechanical systems.In addition to mechanical engineering, stress concentration (应力集中) also plays a role in civil engineering, particularly in the design of bridges, buildings, and other structures. Engineers must account for potential stress concentration (应力集中) points when analyzing load paths and structural integrity. For example, the joints where beams meet can be areas of concern, as they may experience higher stresses due to load transfers. Proper detailing and reinforcement at these points can help prevent structural failures.In conclusion, stress concentration (应力集中) is a fundamental concept that engineers must understand to design safe and reliable structures and components. By recognizing the factors that contribute to localized stress increases and employing analytical techniques such as FEA, engineers can effectively manage stress concentration (应力集中) in their designs. This knowledge not only enhances the performance of materials but also ensures the safety and longevity of engineered systems, ultimately benefiting society as a whole.