shear fracture

简明释义

剪切破坏

英英释义

例句

1.The research focused on how shear fractures 剪切断裂 develop in different types of alloys.

研究集中在不同类型合金中shear fractures 剪切断裂的发展。

2.To prevent shear fractures 剪切断裂, it's important to use materials with high shear strength.

为了防止shear fractures 剪切断裂，使用高剪切强度的材料非常重要。

3.The engineer explained that the failure of the beam was due to a shear fracture 剪切断裂 caused by excessive load.

工程师解释说，梁的失效是由于过载导致的shear fracture 剪切断裂。

4.During the inspection, we found a shear fracture 剪切断裂 on the surface of the metal plate.

在检查过程中，我们发现金属板表面有一个shear fracture 剪切断裂。

5.The shear fracture 剪切断裂 in the concrete wall indicated poor construction practices.

混凝土墙中的shear fracture 剪切断裂表明施工质量差。

作文

In the field of materials science and engineering, understanding the mechanisms behind material failure is crucial. One common type of failure that engineers often encounter is known as shear fracture. This phenomenon occurs when a material fails due to the application of shear stress, which is a force that acts parallel to the surface of a material. When the shear stress exceeds the material's shear strength, the material will experience a shear fracture, leading to a sudden and often catastrophic failure. The mechanics of shear fracture can be observed in various materials, including metals, plastics, and composites. For instance, in metals, the atomic structure plays a significant role in how shear stresses are distributed. When enough force is applied, the bonds between atoms can break, resulting in the material shearing along a specific plane. This is particularly important in structural applications where load-bearing components must withstand forces without failing. A classic example of shear fracture can be seen in the failure of a steel beam under heavy loads. If the beam is subjected to excessive lateral forces, it can undergo shear deformation. Once the shear stress exceeds the yield strength of the steel, the beam may suddenly fracture along a diagonal plane, illustrating the nature of shear fracture. This type of failure is critical for engineers to understand because it can lead to unexpected collapses in structures if not properly accounted for in design. Preventing shear fracture involves careful consideration of material selection and structural design. Engineers often analyze the expected loads and choose materials with adequate shear strength to resist potential fractures. Additionally, incorporating safety factors into designs helps ensure that even under unexpected loads, the risk of shear fracture is minimized. Moreover, advancements in material science have led to the development of composite materials that exhibit enhanced shear resistance. These materials combine different substances to create a product that can withstand higher shear stresses than traditional materials alone. For example, carbon fiber reinforced polymers (CFRPs) are known for their high strength-to-weight ratio and excellent shear properties, making them ideal for aerospace and automotive applications. In conclusion, the concept of shear fracture is vital in understanding how materials behave under stress. By recognizing the conditions that lead to this type of failure, engineers can design safer structures and select appropriate materials to prevent catastrophic failures. As technology advances, ongoing research into the properties of materials will further enhance our ability to predict and mitigate shear fracture in various applications, ultimately contributing to safer engineering practices and innovations in material design.

在材料科学和工程领域，理解材料失效背后的机制至关重要。工程师们经常遇到的一种常见失效类型被称为剪切断裂。这种现象发生在材料因施加剪切应力而失效时，剪切应力是作用于材料表面平行的力。当剪切应力超过材料的剪切强度时，材料将经历剪切断裂，导致突然且往往灾难性的失效。剪切断裂的力学可以在各种材料中观察到，包括金属、塑料和复合材料。例如，在金属中，原子结构在剪切应力如何分布中起着重要作用。当施加足够的力时，原子之间的键可能会断裂，导致材料沿特定平面剪切。这在结构应用中尤为重要，因为承载部件必须承受力而不发生失效。剪切断裂的经典例子可以在重载下的钢梁失效中看到。如果钢梁遭受过大的横向力，它可能会经历剪切变形。一旦剪切应力超过钢的屈服强度，梁可能会沿对角平面突然断裂，说明了剪切断裂的性质。这种类型的失效对于工程师来说至关重要，因为如果在设计中没有恰当地考虑，可能会导致结构的意外倒塌。防止剪切断裂涉及对材料选择和结构设计的仔细考虑。工程师通常会分析预期负载，并选择具有足够剪切强度的材料以抵抗潜在的断裂。此外，将安全系数纳入设计有助于确保即使在意外负载下，剪切断裂的风险也最小化。此外，材料科学的进步导致了复合材料的发展，这些材料表现出增强的剪切抗性。这些材料结合了不同的物质，以创造出能够承受比传统材料更高剪切应力的产品。例如，碳纤维增强聚合物（CFRP）以其高强度重量比和优异的剪切性能而闻名，非常适合航空航天和汽车应用。总之，剪切断裂的概念对于理解材料在应力下的行为至关重要。通过认识导致这种类型失效的条件，工程师可以设计更安全的结构并选择适当的材料以防止灾难性失效。随着技术的进步，对材料特性的持续研究将进一步增强我们预测和减轻各种应用中剪切断裂的能力，最终有助于更安全的工程实践和材料设计的创新。