allowable stress

简明释义

许用应力

英英释义

例句

1.The allowable stress for concrete is typically lower than that of steel, requiring careful design considerations.

混凝土的允许应力通常低于钢材，因此需要仔细的设计考虑。

2.To prevent structural failure, the materials used must not exceed the allowable stress defined by the manufacturer.

为了防止结构失效，使用的材料不得超过制造商定义的允许应力。

3.In this project, we must adhere to the allowable stress limits specified in the building code.

在这个项目中，我们必须遵守建筑规范中规定的允许应力限制。

4.During the inspection, the team verified that the beams were within the allowable stress range.

在检查过程中，团队确认梁的应力在允许应力范围内。

5.The engineer calculated the allowable stress for the steel beam to ensure it would support the load without failure.

工程师计算了钢梁的允许应力以确保它能在不发生破坏的情况下支撑载荷。

作文

In the field of engineering, particularly in structural design, the term allowable stress is crucial for ensuring the safety and integrity of structures. Allowable stress refers to the maximum stress that a material can withstand without failing or experiencing unacceptable deformation. This concept is fundamental in determining how much load a structure can safely carry under various conditions.When engineers design buildings, bridges, and other structures, they must consider numerous factors, including the materials used, the anticipated loads, environmental conditions, and safety factors. The allowable stress is derived from the material's properties and is often determined through standardized testing methods. For example, steel has a high allowable stress compared to concrete, which means that steel structures can support heavier loads without risk of failure.To illustrate the importance of allowable stress, let’s consider a simple example: a beam supporting a roof. The engineer must calculate the loads acting on the beam, including the weight of the roof, snow accumulation, and any additional live loads such as people or equipment. By applying the principles of mechanics and material science, the engineer determines the maximum stress the beam will experience under these loads.Next, the engineer compares this calculated stress to the allowable stress of the beam material. If the calculated stress exceeds the allowable stress, the engineer must either select a material with a higher allowable stress, increase the beam's dimensions, or reduce the loads acting on it. This careful balancing act ensures that the structure remains safe and functional throughout its lifespan.Moreover, allowable stress is not a static value; it can change based on various factors. For instance, temperature fluctuations can affect the strength of materials, thus altering their allowable stress. Engineers must account for these variations, especially in regions prone to extreme weather conditions. Additionally, factors such as fatigue, corrosion, and wear can reduce the effective allowable stress over time, necessitating regular inspections and maintenance.In conclusion, understanding allowable stress is vital for engineers and architects alike. It serves as a guiding principle in the design process, ensuring that structures are built to last while maintaining safety and performance standards. By adhering to allowable stress guidelines, engineers can prevent catastrophic failures and ensure that our built environment remains safe and reliable for generations to come.

在工程领域，特别是在结构设计中，术语允许应力对于确保结构的安全性和完整性至关重要。允许应力指的是材料在不发生故障或经历不可接受变形的情况下能够承受的最大应力。这个概念是确定结构在各种条件下可以安全承载多少负荷的基础。当工程师设计建筑物、桥梁和其他结构时，他们必须考虑许多因素，包括所用材料、预期负荷、环境条件和安全系数。允许应力源自材料的特性，通常通过标准化测试方法来确定。例如，钢材的允许应力比混凝土高，这意味着钢结构可以在没有失败风险的情况下承受更重的负荷。为了说明允许应力的重要性，让我们考虑一个简单的例子：支撑屋顶的梁。工程师必须计算作用在梁上的负荷，包括屋顶的重量、积雪和任何额外的活荷载，例如人或设备。通过应用力学和材料科学的原理，工程师确定在这些负荷下梁将经历的最大应力。接下来，工程师将计算出的应力与梁材料的允许应力进行比较。如果计算出的应力超过了允许应力，工程师必须选择一种具有更高允许应力的材料，增加梁的尺寸，或减少作用于其上的负荷。这种谨慎的平衡确保了结构在其生命周期内保持安全和功能性。此外，允许应力并不是一个静态值；它可能会因各种因素而变化。例如，温度波动会影响材料的强度，从而改变它们的允许应力。工程师必须考虑这些变化，尤其是在极端天气条件频繁的地区。此外，疲劳、腐蚀和磨损等因素可能会随着时间的推移降低有效的允许应力，因此需要定期检查和维护。总之，理解允许应力对工程师和建筑师来说至关重要。它作为设计过程中的指导原则，确保结构在保持安全和性能标准的同时得以建造。通过遵循允许应力的指导方针，工程师可以防止灾难性的故障，并确保我们的建筑环境在未来的世代中保持安全和可靠。