brittle instability

简明释义

脆性不稳定性;

英英释义

例句

1.Researchers are studying brittle instability 脆性失稳 to improve the safety of aerospace structures.

研究人员正在研究brittle instability 脆性失稳以提高航空航天结构的安全性。

2.The material's brittle instability 脆性失稳 limited its application in high-stress environments.

该材料的brittle instability 脆性失稳限制了其在高应力环境中的应用。

3.The bridge design failed to account for brittle instability 脆性失稳, leading to its collapse.

该桥梁设计未考虑到brittle instability 脆性失稳，导致其坍塌。

4.During the experiment, we observed signs of brittle instability 脆性失稳 when the temperature dropped suddenly.

在实验过程中，我们观察到温度骤降时出现了brittle instability 脆性失稳的迹象。

5.The engineer warned that the structure was prone to brittle instability 脆性失稳 under heavy loads.

工程师警告说，该结构在重载下容易发生brittle instability 脆性失稳。

作文

In the field of materials science and structural engineering, the concept of brittle instability plays a crucial role in understanding how materials behave under stress. brittle instability refers to the sudden failure of a material when subjected to stress beyond its elastic limit, leading to catastrophic consequences. Unlike ductile materials that can undergo significant deformation before failure, brittle materials tend to fracture without warning, making it essential for engineers and designers to consider this property when selecting materials for construction projects.One of the most striking examples of brittle instability can be observed in the collapse of structures made from concrete or glass. These materials, while strong under compression, exhibit little to no warning signs before they fail under tensile stress. This characteristic poses significant risks in architectural design, particularly in areas prone to earthquakes or heavy winds. Engineers must account for the possibility of brittle instability by incorporating safety factors and choosing materials that can withstand unexpected loads.The implications of brittle instability extend beyond just structural integrity; they also influence economic considerations. The cost of material failure can be enormous, not only in terms of repairs but also in potential loss of life. For instance, the famous Tacoma Narrows Bridge disaster in 1940 serves as a reminder of how brittle instability can lead to disastrous outcomes. Although the bridge was designed with flexibility in mind, unforeseen aerodynamic forces caused it to oscillate uncontrollably, ultimately leading to its collapse. This incident underscored the importance of understanding both material properties and environmental factors in engineering.Moreover, advancements in material science have led to the development of composite materials that aim to mitigate the risks associated with brittle instability. By combining different materials, engineers can create products that exhibit both strength and ductility, thereby enhancing their resilience against sudden failures. For example, fiber-reinforced polymers are increasingly used in construction due to their ability to absorb energy and deform without breaking, providing a safer alternative to traditional brittle materials.In conclusion, the phenomenon of brittle instability is a critical consideration in the design and analysis of structures. Understanding the nature of this instability not only helps in preventing catastrophic failures but also contributes to the overall safety and longevity of engineered systems. As we continue to innovate and push the boundaries of material science, recognizing and addressing brittle instability will remain a fundamental aspect of creating resilient and sustainable infrastructure for the future.

在材料科学和结构工程领域，brittle instability（脆性不稳定性）的概念在理解材料在应力下的行为方面起着关键作用。brittle instability指的是当材料受到超出弹性极限的应力时，突然发生的失效，导致灾难性的后果。与可以在失效前经历显著变形的韧性材料不同，脆性材料往往在没有警告的情况下断裂，因此工程师和设计师在选择建筑材料时必须考虑这一特性。brittle instability的一个引人注目的例子可以在混凝土或玻璃制成的结构倒塌中观察到。这些材料在压缩下虽然强度很高，但在受拉应力下几乎没有任何警告迹象就会失效。这一特性在建筑设计中带来了重大风险，特别是在地震或强风频繁发生的地区。工程师必须通过引入安全系数并选择能够承受意外载荷的材料来考虑< span>brittle instability的可能性。brittle instability的影响不仅仅局限于结构完整性；它们还影响经济考量。材料失效的成本可能是巨大的，不仅体现在维修费用上，还包括潜在的生命损失。例如，1940年的塔科马海峡大桥灾难提醒我们，brittle instability如何导致灾难性的后果。尽管这座桥的设计考虑了灵活性，但不可预见的气动力量导致其无法控制地振荡，最终导致其倒塌。这一事件强调了在工程中理解材料特性和环境因素的重要性。此外，材料科学的进步导致了复合材料的发展，旨在减轻与brittle instability相关的风险。通过组合不同的材料，工程师可以创造出同时具有强度和韧性的产品，从而增强其抵御突然失效的能力。例如，纤维增强聚合物因其能够吸收能量和在不破裂的情况下变形而越来越多地用于建筑，提供了比传统脆性材料更安全的替代方案。总之，brittle instability现象是结构设计和分析中的一个关键考虑因素。理解这种不稳定性不仅有助于防止灾难性失效，还对工程系统的整体安全性和耐久性做出了贡献。随着我们不断创新并推动材料科学的边界，认识和解决brittle instability将始终是为未来创造韧性和可持续基础设施的基本方面。