hoop stress

简明释义

周线应力

英英释义

例句

1.The engineer calculated the hoop stress 环向应力 in the pipe to ensure it could withstand the pressure.

工程师计算了管道中的hoop stress 环向应力以确保其能够承受压力。

2.The formula for calculating hoop stress 环向应力 involves the internal pressure and the radius of the cylinder.

计算hoop stress 环向应力的公式涉及内部压力和圆柱的半径。

3.Understanding hoop stress 环向应力 is crucial for designing safe pressure vessels.

理解hoop stress 环向应力对设计安全的压力容器至关重要。

4.In a cylindrical tank, the maximum hoop stress 环向应力 occurs at the mid-height.

在圆柱形储罐中，最大hoop stress 环向应力发生在中间高度。

5.During testing, we measured the hoop stress 环向应力 to evaluate the integrity of the structure.

在测试期间，我们测量了hoop stress 环向应力以评估结构的完整性。

作文

In the field of engineering, particularly in mechanical and civil engineering, understanding various types of stresses is crucial for ensuring the safety and durability of structures. One such type of stress that engineers frequently encounter is known as hoop stress. This term refers to the circumferential stress that occurs in a cylindrical object when it is subjected to internal pressure. For instance, when a pipe carries fluid under pressure, the internal forces act on the walls of the pipe, creating a tension that pulls the material outward. This tension is what we refer to as hoop stress. The significance of hoop stress cannot be overstated, especially in industries where high-pressure vessels are common, such as oil and gas, chemical processing, and water supply systems. Engineers must calculate the hoop stress to ensure that the materials used can withstand the pressures without failing. Failure to account for this stress can lead to catastrophic results, including explosions or leaks, which can endanger lives and cause significant financial loss.To better understand hoop stress, let's consider a simple example: a soda can. When you open a can of soda, the carbonated liquid inside creates pressure against the walls of the can. The walls experience hoop stress due to this internal pressure. If the can is made from a material that cannot handle the hoop stress generated by the carbonation, it could rupture, causing a mess and potentially injuring someone nearby.Calculating hoop stress is typically done using the formula: hoop stress (σ_h) = (P * r) / t,where P is the internal pressure, r is the radius of the cylinder, and t is the thickness of the wall. This equation shows that hoop stress increases with higher internal pressure and larger radius, while decreasing with thicker walls. Therefore, when designing any cylindrical structure, engineers must carefully consider these factors to ensure safety.Moreover, hoop stress is not only relevant to pipes but also to tanks, boilers, and other pressure vessels. In these applications, engineers often use materials with high tensile strength to withstand the hoop stress. Additionally, they may incorporate safety factors into their designs, which means that they intentionally design structures to handle pressures significantly greater than what they expect to encounter in normal operations.In conclusion, hoop stress is a vital concept in engineering that relates to the circumferential stress experienced by cylindrical objects under internal pressure. Understanding and calculating hoop stress is essential for engineers to design safe and effective structures that can endure the demands of their operating environments. As industries continue to evolve and push the limits of technology, the importance of mastering concepts like hoop stress will only grow, ensuring that engineers can meet the challenges of the future with confidence and precision.

在工程领域，特别是机械和土木工程中，理解各种类型的应力对于确保结构的安全性和耐用性至关重要。其中一个工程师经常遇到的应力类型被称为环向应力。这个术语指的是当圆柱形物体受到内部压力时发生的周向应力。例如，当管道输送压力下的流体时，内部力作用于管道的壁，产生一种将材料向外拉的张力。这种张力就是我们所称的环向应力。环向应力的重要性不容小觑，特别是在高压容器普遍存在的行业，如石油和天然气、化工处理和供水系统。工程师必须计算环向应力以确保所用材料能够承受压力而不会失效。如果未能考虑这种应力，可能会导致灾难性的后果，包括爆炸或泄漏，这会危及生命并造成重大经济损失。为了更好地理解环向应力，我们可以考虑一个简单的例子：一个汽水罐。当你打开一罐汽水时，里面的碳酸液体对罐壁施加了压力。由于这种内部压力，罐壁经历了环向应力。如果罐子由不能承受由碳酸气产生的环向应力的材料制成，它可能会破裂，造成麻烦，并可能伤害到附近的人。计算环向应力通常使用以下公式：环向应力 (σ_h) = (P * r) / t，其中P是内部压力，r是圆柱的半径，t是壁的厚度。这个方程表明，随着内部压力和半径的增加，环向应力也会增加，而随着壁厚的增加则会减少。因此，在设计任何圆柱形结构时，工程师必须仔细考虑这些因素，以确保安全。此外，环向应力不仅与管道相关，还与储罐、锅炉和其他压力容器相关。在这些应用中，工程师通常使用高抗拉强度的材料来承受环向应力。此外，他们可能会在设计中加入安全系数，这意味着他们故意设计结构以处理远高于正常操作中预期遇到的压力。总之，环向应力是工程学中的一个重要概念，涉及到圆柱形物体在内部压力下所经历的周向应力。理解和计算环向应力对于工程师设计安全有效的能够承受其操作环境要求的结构至关重要。随着各行业的不断发展和技术的进步，掌握像环向应力这样的概念的重要性只会增加，从而确保工程师能够自信而精确地应对未来的挑战。