permissible stress

简明释义

容许应力

英英释义

例句

1.The engineer calculated the permissible stress to ensure the bridge could safely support heavy loads.

工程师计算了允许应力以确保桥梁能够安全承受重载。

2.Exceeding the permissible stress can lead to structural failure and safety hazards.

超过允许应力可能导致结构失效和安全隐患。

3.Before construction, it's crucial to determine the permissible stress for the materials used.

在施工之前，确定所用材料的允许应力是至关重要的。

4.The design must adhere to the permissible stress limits established by industry standards.

设计必须遵循行业标准中规定的允许应力限制。

5.Regular inspections help ensure that the structure remains within permissible stress levels.

定期检查有助于确保结构保持在允许应力水平内。

作文

In the field of engineering and materials science, the concept of permissible stress plays a crucial role in ensuring the safety and reliability of structures. Permissible stress refers to the maximum amount of stress that a material can withstand without experiencing failure or yielding. This value is determined through rigorous testing and analysis, taking into account various factors such as the material properties, environmental conditions, and the intended application of the structure. Understanding permissible stress is essential for engineers and designers, as it directly impacts the design and construction of buildings, bridges, and other infrastructure.When designing a structure, engineers must carefully consider the loads that the structure will be subjected to, including static loads from the weight of the materials and dynamic loads from environmental factors like wind and earthquakes. By calculating the expected stresses on different components of the structure, engineers can compare these values to the permissible stress of the materials being used. If the expected stress exceeds the permissible stress, the design may need to be modified to ensure safety. This might involve selecting stronger materials, increasing the size of structural elements, or adding reinforcements.The determination of permissible stress is not only important for new constructions but also for the maintenance and inspection of existing structures. Over time, materials can degrade due to factors such as corrosion, fatigue, and environmental exposure. Regular assessments are necessary to ensure that the remaining strength of the materials still meets the required permissible stress. If a structure is found to be operating near or above its permissible stress, it may require repairs or reinforcements to prevent catastrophic failures.In addition to safety considerations, understanding permissible stress also has economic implications. Structures designed with adequate margins below the permissible stress can reduce the risk of costly failures and repairs, thereby saving money in the long run. Furthermore, adhering to permissible stress guidelines helps ensure compliance with building codes and regulations, which are designed to protect public safety.In conclusion, the concept of permissible stress is fundamental to the field of engineering. It serves as a benchmark for evaluating the safety and integrity of materials and structures. By understanding and applying the principles of permissible stress, engineers can design safe and efficient structures that meet the demands of modern society. As we continue to advance in technology and materials science, the importance of accurately determining and adhering to permissible stress will only grow, ensuring that our built environment remains safe and resilient for future generations.

在工程和材料科学领域，允许应力的概念在确保结构的安全性和可靠性方面起着至关重要的作用。允许应力是指材料在不发生失效或屈服的情况下能够承受的最大应力。这一数值通过严格的测试和分析确定，考虑了材料特性、环境条件以及结构的预期应用等多种因素。理解允许应力对工程师和设计师至关重要，因为它直接影响建筑、桥梁和其他基础设施的设计与建造。在设计结构时，工程师必须仔细考虑结构将承受的载荷，包括来自材料重量的静态载荷和来自风和地震等环境因素的动态载荷。通过计算结构不同组件上的预期应力，工程师可以将这些值与所用材料的允许应力进行比较。如果预期应力超过允许应力，则可能需要修改设计以确保安全。这可能涉及选择更强的材料、增加结构元素的尺寸或添加加固措施。允许应力的确定不仅对新建工程重要，对现有结构的维护和检查也同样重要。随着时间的推移，材料可能因腐蚀、疲劳和环境暴露等因素而退化。定期评估是必要的，以确保材料的剩余强度仍然符合所需的允许应力。如果发现结构的运行接近或超过其允许应力，则可能需要进行修理或加固，以防止灾难性的故障。除了安全考虑外，理解允许应力还具有经济意义。按照允许应力设计的结构可以降低成本高昂的故障和修理风险，从而在长期内节省资金。此外，遵循允许应力指南有助于确保遵守建筑规范和法规，这些规范旨在保护公众安全。总之，允许应力的概念是工程领域的基础。它作为评估材料和结构安全性与完整性的基准。通过理解和应用允许应力的原则，工程师可以设计出安全高效的结构，以满足现代社会的需求。随着我们在技术和材料科学上的不断进步，准确确定和遵循允许应力的重要性只会增加，确保我们所建环境在未来几代人中保持安全和韧性。