strain crack

简明释义

龟裂海冰由于下面水的运动而)龟裂

英英释义

例句

1.The technician recommended replacing the part due to a significant strain crack 应变裂纹 found in the casing.

技术人员建议更换该部件，因为外壳中发现了明显的应变裂纹。

2.A strain crack 应变裂纹 can lead to catastrophic failure if not addressed promptly.

如果不及时处理，应变裂纹可能导致灾难性的故障。

3.The engineer noticed a strain crack 应变裂纹 in the bridge during the inspection.

工程师在检查桥梁时注意到了一条应变裂纹。

4.After the intense pressure test, a strain crack 应变裂纹 appeared on the metal component.

经过强度压力测试后，金属部件上出现了应变裂纹。

5.The analysis showed that the strain crack 应变裂纹 was caused by thermal expansion.

分析显示，应变裂纹是由热膨胀引起的。

作文

In the field of materials science and engineering, the term strain crack refers to a type of fracture that occurs in materials subjected to stress. These cracks often develop when a material is deformed beyond its elastic limit, leading to permanent damage. Understanding the mechanisms behind strain crack formation is crucial for engineers and designers, as it can significantly impact the performance and durability of structures and components.When materials are exposed to varying loads, they undergo deformation. Initially, this deformation is elastic, meaning that the material will return to its original shape once the load is removed. However, if the applied stress exceeds a certain threshold, known as the yield strength, the material enters the plastic deformation stage. It is during this stage that strain crack can initiate.One common scenario where strain crack occurs is in metals that are subjected to tensile stress. As the metal is stretched, microscopic defects may begin to form at weak points within the material's structure. These defects can propagate under continued stress, leading to the formation of a strain crack. Once a crack begins to develop, it can grow rapidly, often resulting in catastrophic failure if not detected and addressed in time.The presence of strain crack can be influenced by various factors, including the material's composition, temperature, and the rate at which the load is applied. For instance, certain alloys are more susceptible to strain crack due to their microstructural characteristics. Additionally, elevated temperatures can reduce a material's yield strength, making it more prone to deformation and subsequent cracking.To mitigate the risk of strain crack formation, engineers often employ several strategies. One approach is to select materials with higher yield strengths or improved ductility, which allows them to withstand greater deformation without cracking. Another method involves implementing design features that distribute stress more evenly across a component, thereby minimizing localized areas of high stress that could lead to strain crack initiation.Regular inspection and maintenance are also vital in preventing strain crack related failures. Techniques such as non-destructive testing (NDT) can be used to detect early signs of cracking before they progress to a critical state. By identifying potential issues early, engineers can take corrective actions to ensure the safety and longevity of structures and machinery.In conclusion, the phenomenon of strain crack is a significant concern in materials science, particularly in applications where structural integrity is paramount. By understanding the conditions that lead to strain crack formation and implementing appropriate design and maintenance practices, engineers can enhance the reliability of materials and structures, ultimately ensuring safer and more durable products for society. The study of strain crack not only advances our knowledge of material behavior but also plays a crucial role in the development of innovative solutions to engineering challenges.

在材料科学和工程领域，术语应变裂纹指的是在材料承受应力时发生的一种断裂类型。这些裂纹通常在材料被变形超过其弹性极限时发展，从而导致永久性损伤。理解应变裂纹形成背后的机制对于工程师和设计师至关重要，因为这会显著影响结构和组件的性能和耐久性。当材料暴露于不同的载荷时，它们会经历变形。最初，这种变形是弹性的，这意味着一旦卸载，材料将恢复到其原始形状。然而，如果施加的应力超过某个阈值，即屈服强度，材料将进入塑性变形阶段。正是在这个阶段，应变裂纹可能会开始形成。应变裂纹发生的一个常见场景是在承受拉伸应力的金属中。当金属被拉伸时，材料内部微观缺陷可能会在弱点处开始形成。这些缺陷在持续应力下可以传播，导致应变裂纹的形成。一旦裂纹开始发展，它可能会迅速增长，通常在未及时检测和处理的情况下导致灾难性故障。应变裂纹的存在可能受到多种因素的影响，包括材料的成分、温度以及施加载荷的速率。例如，某些合金由于其微观结构特征而更容易出现应变裂纹。此外，升高的温度会降低材料的屈服强度，使其更容易变形和随之开裂。为了降低应变裂纹形成的风险，工程师通常采用几种策略。一种方法是选择具有更高屈服强度或改善延展性的材料，这使得它们能够承受更大的变形而不发生开裂。另一种方法涉及实施设计特征，以更均匀地分配组件上的应力，从而最小化可能导致应变裂纹起始的高应力局部区域。定期检查和维护在防止与应变裂纹相关的故障中也至关重要。无损检测（NDT）等技术可用于在裂纹进展到关键状态之前检测早期的开裂迹象。通过及早识别潜在问题，工程师可以采取纠正措施，以确保结构和机械的安全性和耐久性。总之，应变裂纹现象在材料科学中是一个重要的关注点，尤其是在结构完整性至关重要的应用中。通过理解导致应变裂纹形成的条件并实施适当的设计和维护实践，工程师可以增强材料和结构的可靠性，最终确保社会更安全、更耐用的产品。对应变裂纹的研究不仅推动了我们对材料行为的认识，而且在解决工程挑战的创新解决方案开发中发挥了关键作用。