crack growth

简明释义

裂缝扩延

英英释义

例句

1.The research focused on the factors affecting crack growth 裂纹扩展 in metal alloys.

研究集中在影响金属合金中crack growth 裂纹扩展的因素上。

2.A sudden increase in crack growth 裂纹扩展 can indicate a structural failure.

突然增加的crack growth 裂纹扩展可能表明结构失效。

3.Regular inspections help detect crack growth 裂纹扩展 before it becomes critical.

定期检查有助于在crack growth 裂纹扩展变得严重之前发现它。

4.Engineers use advanced software to simulate crack growth 裂纹扩展 under various conditions.

工程师们使用先进的软件模拟不同条件下的crack growth 裂纹扩展。

5.The engineers monitored the crack growth 裂纹扩展 in the bridge to ensure its safety.

工程师们监测桥梁中的crack growth 裂纹扩展以确保其安全。

作文

Crack growth is a critical phenomenon observed in materials, particularly in the field of engineering and materials science. It refers to the process by which existing cracks in a material propagate or grow under applied stress or environmental conditions. Understanding crack growth (裂纹扩展) is essential for predicting the lifespan and reliability of structures, such as bridges, aircraft, and pipelines. Engineers must assess the potential for crack growth (裂纹扩展) to ensure safety and avoid catastrophic failures.The study of crack growth (裂纹扩展) involves various factors, including the material properties, the type of loading, and environmental conditions. For instance, metals may exhibit different crack growth (裂纹扩展) behavior when subjected to fatigue, which is the repeated application of stress over time. In this scenario, tiny cracks can initiate at stress concentrators, such as notches or surface defects, and gradually grow until they reach a critical size that leads to failure.Moreover, crack growth (裂纹扩展) can also be influenced by environmental factors like temperature, humidity, and the presence of corrosive substances. For example, in corrosive environments, the rate of crack growth (裂纹扩展) may accelerate due to the interaction between the material and the corrosive agents, leading to premature failure. This highlights the importance of conducting thorough assessments of both mechanical and environmental influences on crack growth (裂纹扩展).To mitigate the risks associated with crack growth (裂纹扩展), engineers often implement various strategies. Regular inspection and maintenance are crucial for detecting early signs of crack growth (裂纹扩展) before they become critical. Non-destructive testing methods, such as ultrasonic testing or X-ray imaging, can be employed to identify internal cracks without damaging the material.Additionally, advancements in materials science have led to the development of more resilient materials that exhibit improved resistance to crack growth (裂纹扩展). For instance, composite materials and advanced alloys are designed to withstand higher stresses and resist crack initiation and propagation. The use of such materials can significantly enhance the safety and durability of structures.In conclusion, understanding crack growth (裂纹扩展) is vital for ensuring the integrity and longevity of engineering structures. By studying the mechanisms behind crack growth (裂纹扩展) and implementing preventive measures, engineers can minimize the risks of failure and maintain the safety of infrastructure. Continuous research in this field will contribute to the development of better materials and techniques, ultimately leading to safer and more reliable engineering solutions.

裂纹扩展是材料中观察到的一个关键现象，尤其是在工程和材料科学领域。它指的是在施加应力或环境条件下，材料中现有裂纹的传播或生长过程。理解裂纹扩展（crack growth）对于预测结构的使用寿命和可靠性至关重要，例如桥梁、飞机和管道。工程师必须评估裂纹扩展（crack growth）的潜在风险，以确保安全并避免灾难性的故障。裂纹扩展（crack growth）的研究涉及多种因素，包括材料特性、加载类型和环境条件。例如，当金属受到疲劳作用时，可能会表现出不同的裂纹扩展（crack growth）行为，疲劳是指长期施加的重复应力。在这种情况下，微小的裂纹可能在应力集中区域（如缺口或表面缺陷）处开始，并逐渐生长，直到达到导致失效的临界尺寸。此外，环境因素如温度、湿度和腐蚀性物质的存在也会影响裂纹扩展（crack growth）。例如，在腐蚀性环境中，由于材料与腐蚀剂之间的相互作用，裂纹扩展（crack growth）的速率可能会加快，从而导致过早失效。这突显了对机械和环境影响进行全面评估的重要性。为了减轻与裂纹扩展（crack growth）相关的风险，工程师通常会实施各种策略。定期检查和维护对于在裂纹扩展（crack growth）变得严重之前发现早期迹象至关重要。无损检测方法，如超声波检测或X射线成像，可以用于在不损坏材料的情况下识别内部裂纹。此外，材料科学的进步导致开发出更具韧性的材料，这些材料对裂纹扩展（crack growth）具有更好的抵抗力。例如，复合材料和先进合金被设计为承受更高的应力并抵抗裂纹的产生和传播。使用这些材料可以显著提高结构的安全性和耐久性。总之，理解裂纹扩展（crack growth）对于确保工程结构的完整性和使用寿命至关重要。通过研究裂纹扩展（crack growth）背后的机制并实施预防措施，工程师可以最小化失效风险，并维护基础设施的安全。该领域的持续研究将有助于开发更好的材料和技术，最终导致更安全、更可靠的工程解决方案。