failure stress

简明释义

破坏应力

英英释义

例句

1.During the testing phase, we found that the failure stress of the composite material was lower than expected.

在测试阶段，我们发现复合材料的失效应力低于预期。

2.The engineer calculated the failure stress to determine the maximum load the material could withstand before breaking.

工程师计算了失效应力以确定材料在断裂前能够承受的最大负荷。

3.Engineers must account for failure stress when selecting materials for high-stress applications.

工程师在选择高应力应用的材料时必须考虑失效应力。

4.Understanding failure stress is crucial in designing safe structures that can handle unexpected loads.

理解失效应力对于设计能够承受意外负荷的安全结构至关重要。

5.The research focused on how temperature affects the failure stress of metals.

研究集中在温度如何影响金属的失效应力。

作文

In the realm of engineering and materials science, understanding the concept of failure stress is crucial for designing safe and reliable structures. Failure stress refers to the maximum stress that a material can withstand before it fails or fractures under load. This parameter is essential for engineers when selecting materials for various applications, as it directly influences the safety and longevity of structures such as bridges, buildings, and machinery.When a structure is subjected to external forces, it experiences stress, which is defined as the force applied per unit area. As the stress increases, materials will behave elastically up to a certain point, known as the yield point. Beyond this point, they may undergo plastic deformation, where the material begins to change shape permanently. However, if the stress continues to increase, it eventually reaches the failure stress, at which point the material can no longer support the load and will break or collapse.Different materials have different failure stress values. For instance, metals typically exhibit high failure stress levels, making them suitable for construction and manufacturing. In contrast, materials like glass or ceramics tend to have lower failure stress thresholds, which limits their use in structural applications. Understanding these differences is vital for engineers to make informed decisions about material selection based on the specific requirements of a project.To illustrate the importance of failure stress, consider the case of a bridge. Engineers must calculate the expected loads that the bridge will experience over its lifetime, including the weight of vehicles, pedestrians, and environmental factors such as wind and snow. They must then select materials with a failure stress that exceeds these calculated loads to ensure the bridge remains safe and functional. If the materials chosen have a failure stress that is too low, the bridge may fail under heavy loads, leading to catastrophic consequences.Moreover, testing for failure stress is an integral part of material science research. Various methods, such as tensile tests, are employed to determine how much stress a material can endure before failing. These tests help researchers develop new materials with improved properties, enhancing the performance and safety of future structures.In conclusion, comprehending the significance of failure stress is essential for anyone involved in engineering and design. It plays a critical role in ensuring that structures can withstand the forces they encounter throughout their lifespan. By carefully considering failure stress during the design process, engineers can create safer, more reliable infrastructures that serve society effectively. Ultimately, the study of failure stress not only contributes to the advancement of technology but also helps prevent disasters caused by structural failures, protecting lives and property.

在工程和材料科学的领域中，理解失效应力的概念对于设计安全可靠的结构至关重要。失效应力指的是材料在负载下承受的最大应力，超过这个应力材料就会失效或断裂。这个参数对于工程师在选择各种应用材料时至关重要，因为它直接影响到桥梁、建筑和机械等结构的安全性和使用寿命。当结构受到外部力量作用时，它会经历应力，这被定义为单位面积上施加的力。随着应力的增加，材料在某个点之前会表现出弹性，这个点被称为屈服点。超过这个点后，材料可能会经历塑性变形，即材料开始永久性地改变形状。然而，如果应力继续增加，最终达到失效应力，此时材料将无法再支持负载，并将断裂或倒塌。不同材料具有不同的失效应力值。例如，金属通常表现出较高的失效应力水平，使其适合用于建筑和制造。相比之下，玻璃或陶瓷等材料的失效应力阈值较低，这限制了它们在结构应用中的使用。了解这些差异对于工程师根据项目的具体要求做出明智的材料选择至关重要。为了说明失效应力的重要性，可以考虑桥梁的案例。工程师必须计算桥梁在其生命周期内将经历的预期负载，包括车辆、行人以及风和雪等环境因素的重量。然后，他们必须选择失效应力超过这些计算负载的材料，以确保桥梁保持安全和功能。如果所选材料的失效应力过低，桥梁可能会在重负载下失效，导致灾难性的后果。此外，测试失效应力是材料科学研究的重要组成部分。通过拉伸测试等多种方法来确定材料在失效前能承受多少应力。这些测试帮助研究人员开发出具有改进特性的材料，提高未来结构的性能和安全性。总之，理解失效应力的重要性对任何参与工程和设计的人来说都是必不可少的。它在确保结构能够承受其整个生命周期内遇到的力量方面发挥着关键作用。通过在设计过程中仔细考虑失效应力，工程师可以创建更安全、更可靠的基础设施，有效服务于社会。最终，失效应力的研究不仅有助于技术的进步，还帮助防止因结构失效而造成的灾难，保护生命和财产。