modulus of section

简明释义

断面模量

英英释义

例句

1.The engineer calculated the modulus of section to determine the beam's strength.

工程师计算了截面模量以确定梁的强度。

2.The modulus of section helps in predicting how much a beam will deflect under load.

通过截面模量可以预测梁在负载下的挠度。

3.When designing a bridge, engineers must consider the modulus of section of the materials used.

在设计桥梁时，工程师必须考虑所用材料的截面模量。

4.A higher modulus of section indicates a stronger material under bending.

更高的截面模量表示材料在弯曲下更强。

5.In structural analysis, the modulus of section is crucial for assessing load-bearing capacity.

在结构分析中，截面模量对于评估承载能力至关重要。

作文

The concept of the modulus of section is fundamental in the field of structural engineering and mechanics. It is a measure that helps engineers understand how different materials will behave under various loads. When designing structures such as beams, columns, or bridges, knowing the modulus of section is crucial for ensuring safety and stability. This parameter reflects the distribution of material in a structural element and its ability to resist bending moments. To grasp the significance of the modulus of section, one must first consider the principles of bending. When a beam is subjected to a load, it experiences bending stress, which varies along its length. The modulus of section is defined as the ratio of the moment of inertia of the cross-section of the beam to the distance from the neutral axis to the outermost fiber. This means that a higher modulus of section indicates a more efficient design, capable of carrying greater loads without excessive deformation.For instance, imagine a simple beam supported at both ends with a load applied in the center. Engineers would calculate the modulus of section to determine whether the beam can safely support the load without failing. A beam with a larger modulus of section will have a higher resistance to bending, making it suitable for heavier loads or longer spans. Conversely, a beam with a smaller modulus of section may require additional supports or a different material to ensure it does not bend excessively or break under pressure.In practical applications, the selection of materials also plays a significant role in determining the modulus of section. Different materials have different strengths and stiffnesses, which affect their performance under load. For example, steel has a high modulus of section compared to wood, allowing for slimmer designs in steel structures while still maintaining strength. This property is particularly advantageous in modern architecture, where aesthetic considerations often demand minimalist designs without compromising safety.Moreover, the modulus of section is not only critical in the design phase but also in the analysis of existing structures. Engineers frequently assess the modulus of section of aging buildings or bridges to evaluate their capacity to withstand current loads. If the modulus of section is found to be inadequate due to wear and tear or changes in usage, retrofitting or reinforcement may be necessary to prolong the life of the structure.In conclusion, the modulus of section is an essential parameter in the field of structural engineering, influencing both the design and assessment of various structures. Understanding this concept allows engineers to create safe, efficient, and sustainable designs that meet the demands of modern construction. As technology advances and materials evolve, the importance of accurately calculating the modulus of section will only continue to grow, underscoring its relevance in the ever-changing landscape of engineering and architecture.

“截面模量”这一概念在结构工程和力学领域中至关重要。它是一个帮助工程师理解不同材料在各种载荷下表现的测量标准。在设计梁、柱或桥等结构时，了解“截面模量”对于确保安全和稳定至关重要。这个参数反映了结构元件中材料的分布及其抵抗弯矩的能力。要理解“截面模量”的重要性，首先必须考虑弯曲的原理。当梁受到载荷作用时，它会经历弯曲应力，而这种应力沿其长度变化。“截面模量”被定义为梁截面的惯性矩与从中性轴到最外层纤维的距离的比率。这意味着更高的“截面模量”代表着更有效的设计，能够承载更大的载荷而不会出现过度变形。例如，想象一根简单的梁，两端支撑，中间施加载荷。工程师会计算“截面模量”，以确定该梁是否能够安全地支撑载荷而不发生失效。具有较大“截面模量”的梁将具有更高的抗弯能力，适合承受更重的载荷或更长的跨度。相反，具有较小“截面模量”的梁可能需要额外的支撑或不同的材料，以确保在压力下不会过度弯曲或断裂。在实际应用中，材料的选择也在决定“截面模量”方面发挥着重要作用。不同的材料具有不同的强度和刚度，这会影响它们在载荷下的表现。例如，钢材的“截面模量”相比木材更高，使得钢结构的设计可以更纤细，同时保持强度。这一特性在现代建筑中尤为有利，因为美学考虑常常要求极简设计，而不妨碍安全性。此外，“截面模量”不仅在设计阶段至关重要，在现有结构的分析中也同样重要。工程师经常评估老旧建筑或桥梁的“截面模量”，以评估其承受当前载荷的能力。如果由于磨损或使用情况的变化，发现“截面模量”不足，则可能需要进行加固或增强，以延长结构的使用寿命。总之，“截面模量”是结构工程领域中的一个基本参数，影响着各种结构的设计和评估。理解这一概念使工程师能够创建安全、高效和可持续的设计，满足现代建筑的需求。随着技术的进步和材料的演变，准确计算“截面模量”的重要性只会不断增加，强调了它在工程和建筑不断变化的领域中的相关性。