percentage of elongation

简明释义

伸展率

英英释义

例句

1.In the engineering report, the percentage of elongation 延伸百分比 was crucial for determining the material's suitability for construction.

在工程报告中，延伸百分比 percentage of elongation 对于确定材料的适用性至关重要。

2.The percentage of elongation 延伸百分比 is an important factor in assessing the performance of polymers.

在评估聚合物性能时，延伸百分比 percentage of elongation 是一个重要因素。

3.A higher percentage of elongation 延伸百分比 typically indicates a more flexible material.

较高的延伸百分比 percentage of elongation 通常表示材料更具柔韧性。

4.The material's tensile test revealed a percentage of elongation 延伸百分比 of 15%, indicating good ductility.

材料的拉伸测试显示，延伸百分比 percentage of elongation 为15%，表明良好的延展性。

5.During the quality control process, we measured the percentage of elongation 延伸百分比 to ensure product reliability.

在质量控制过程中，我们测量了延伸百分比 percentage of elongation 以确保产品的可靠性。

作文

The concept of material properties is fundamental in engineering and materials science. One crucial property that engineers often consider is the percentage of elongation, which is a measure of a material's ability to deform under tensile stress. This property is particularly important in applications where flexibility and ductility are required. Understanding the percentage of elongation can help engineers select appropriate materials for specific applications, ensuring that structures and components can withstand various forces without failing.The percentage of elongation is defined as the increase in length of a material when subjected to tension, expressed as a percentage of its original length. To calculate this value, one must measure the original length of the material before testing and then measure its length after it has been stretched to the point of fracture. The formula for calculating the percentage of elongation is:Percentage of Elongation = ((Final Length - Original Length) / Original Length) * 100%This calculation provides valuable insight into the ductility of the material. A higher percentage of elongation indicates a more ductile material, which means it can undergo significant deformation before breaking. Conversely, a lower percentage of elongation suggests that the material is more brittle and may fail suddenly without much warning.In practical terms, the percentage of elongation is critical in industries such as construction, automotive, and aerospace. For example, steel used in construction must have a sufficient percentage of elongation to ensure that it can absorb energy during events such as earthquakes or impacts. If the steel were too brittle, it could fracture and lead to catastrophic failures in structures.Additionally, the percentage of elongation is also an essential factor in determining the quality of metal alloys. Engineers often perform tensile tests on these materials to assess their mechanical properties, including yield strength, tensile strength, and percentage of elongation. By understanding these properties, they can predict how materials will behave under different loading conditions and make informed decisions about material selection.Moreover, the percentage of elongation can vary significantly between different materials. For instance, rubber exhibits a very high percentage of elongation, making it suitable for applications requiring flexibility and resilience, such as tires and seals. On the other hand, ceramics typically have a low percentage of elongation and are known for their hardness and brittleness, making them ideal for applications like tiles and cutting tools but unsuitable for structural components that experience dynamic loads.In conclusion, the percentage of elongation is a vital parameter in the field of materials science and engineering. It provides insights into the ductility and flexibility of materials, guiding engineers in their selection process for various applications. By understanding and utilizing the percentage of elongation, engineers can design safer and more efficient structures and products that meet the demands of modern technology and industry.

材料性能的概念在工程和材料科学中是基础性的。工程师常常考虑的一个关键属性是延伸百分比，它是衡量材料在拉伸应力下变形能力的指标。这个属性在需要灵活性和延展性的应用中特别重要。理解延伸百分比可以帮助工程师选择适合特定应用的材料，确保结构和组件能够承受各种力量而不发生失效。延伸百分比被定义为材料在拉伸时长度的增加，以其原始长度的百分比表示。要计算这个值，必须在测试前测量材料的原始长度，然后在拉伸到断裂点后测量其长度。计算延伸百分比的公式为：延伸百分比 = ((最终长度 - 原始长度) / 原始长度) * 100%这个计算提供了对材料延展性的宝贵见解。较高的延伸百分比表明材料更具延展性，这意味着它可以在断裂前经历显著的变形。相反，较低的延伸百分比则表明材料更脆，可能会突然失效而没有太多警告。在实际应用中，延伸百分比在建筑、汽车和航空航天等行业中至关重要。例如，用于建筑的钢材必须具有足够的延伸百分比，以确保它能够在地震或冲击等事件中吸收能量。如果钢材过于脆弱，它可能会断裂，导致结构的灾难性失败。此外，延伸百分比也是确定金属合金质量的重要因素。工程师通常对这些材料进行拉伸测试，以评估其机械性能，包括屈服强度、抗拉强度和延伸百分比。通过理解这些属性，他们可以预测材料在不同载荷条件下的表现，并就材料选择做出明智的决策。此外，不同材料之间的延伸百分比可能差异很大。例如，橡胶表现出非常高的延伸百分比，使其适用于需要灵活性和韧性的应用，如轮胎和密封件。另一方面，陶瓷通常具有较低的延伸百分比，以其硬度和脆性著称，适合用于瓷砖和切削工具等应用，但不适合用于承受动态负载的结构部件。总之，延伸百分比是材料科学和工程领域的一个重要参数。它提供了对材料延展性和灵活性的见解，指导工程师在各种应用中的选择过程。通过理解和利用延伸百分比，工程师可以设计出更安全、更高效的结构和产品，以满足现代技术和工业的需求。