deformations

简明释义

英[ˌdiːfɔːˈmeɪʃənz]美[ˌdiːfɔrˈmeɪʃənz]

[力] 变形

英英释义

单词用法

同义词

反义词

例句

1.Test results show that deformations in laser hardened gears was negligible to influence gear precision.

检测结果表明：齿轮激光淬火变形很小，不影响齿轮的精度等级。

2.By using finite element method, the deformations of flat membrane mirror have been calculated.

运用有限元法对不同工况下平面薄膜反射镜的变形进行了计算。

3.The deformations (deflection value) of the patterns with different coatings were measured under different loads.

测试涂挂不同涂料的模样在变载荷下的挠度值。

4.This class of problems usually describes the deformations of elastic beams with both fixed points.

这类问题通常描述两端固定的弹性梁的形变。

5.The proposed method can be used in the analyses of cracks, deformations, bond behaviour and finite element methods.

建议的方法可用于裂缝、变形、粘结性能和有限元法的分析。

6.These deformations are nonelastic, depending on the relative strength and stiffness of each component of the frame.

这种变形一般是非弹性的，其大小取决于框架中每个组成部分的相对强度和刚度。

7.Soil softening and liquefaction due to earthquake cause permanent deformations and displacements of submerged slope.

地震动使海底倾斜土层软化、液化并产生永久变形和位移。

8.The engineer analyzed the structural deformations to ensure the building's safety.

工程师分析了结构的变形以确保建筑的安全。

9.In materials science, understanding deformations is crucial for predicting how materials will behave under stress.

在材料科学中，理解变形对于预测材料在应力下的表现至关重要。

10.The artist used clay to create various deformations in her sculpture.

艺术家用粘土在她的雕塑中创造了各种变形。

11.Geologists study the deformations of rocks to understand tectonic movements.

地质学家研究岩石的变形以了解构造运动。

12.The car's body showed signs of deformations after the collision.

汽车车身在碰撞后显示出变形的迹象。

作文

Deformations are an essential concept in various fields, including physics, engineering, and materials science. They refer to the changes in shape or size of an object due to applied forces or environmental conditions. Understanding these deformations (变形) is crucial for designing structures that can withstand external pressures and for predicting how materials behave under stress. In this essay, I will discuss the types of deformations (变形), their causes, and their implications in real-world applications. There are two primary types of deformations (变形): elastic and plastic. Elastic deformations (变形) occur when a material returns to its original shape after the removal of the applied force. For example, when you stretch a rubber band and then let it go, it returns to its initial form. This property is vital for materials used in construction, as they need to endure temporary stresses without permanent damage. On the other hand, plastic deformations (变形) happen when a material undergoes a permanent change in shape. This occurs when the applied force exceeds the material's yield strength, leading to irreversible changes. An example of plastic deformations (变形) can be seen in metalworking processes, where metals are shaped through bending or molding. Engineers must carefully consider these deformations (变形) when designing components to ensure they can operate safely under expected loads. The causes of deformations (变形) can be varied. They may arise from external forces, such as tension, compression, torsion, or shear. Environmental factors like temperature changes can also induce deformations (变形). For instance, thermal expansion occurs when materials expand or contract with temperature fluctuations, potentially leading to structural issues if not accounted for in design. In engineering, understanding deformations (变形) is critical for assessing the integrity and performance of structures. Finite element analysis (FEA) is a computational tool used to predict how structures will respond to various forces and environmental conditions. By simulating potential deformations (变形), engineers can identify weak points and make necessary adjustments before construction begins. This proactive approach helps prevent catastrophic failures and ensures safety. Moreover, in the field of materials science, researchers study deformations (变形) to develop new materials with improved properties. For example, alloys can be engineered to exhibit specific deformations (变形) under stress, making them suitable for particular applications, such as aerospace or automotive industries. The ability to manipulate deformations (变形) at the molecular level opens up possibilities for innovative designs and enhanced performance. In conclusion, deformations (变形) play a significant role in understanding how materials respond to forces and environmental changes. By distinguishing between elastic and plastic deformations (变形), engineers and scientists can design safer structures and create advanced materials. As technology continues to evolve, the study of deformations (变形) will remain a fundamental aspect of engineering and materials research, ultimately contributing to the development of safer and more efficient systems.