dilatancy

简明释义

英[daɪˈleɪtənsi]美[daɪˈleɪtənsi]

n. 膨胀；肥大

英英释义

单词用法

同义词

反义词

例句

1.Dilatancy is the key issue to describe the constitutive behaviors of sand.

剪胀性是砂土本构模型一个关键问题。

2.The effects of intermediate principal stress and dilatancy are considered in the unified displacement solution; so the unified solution obtained has very broadly theoretical value.

位移统一解合理地考虑了中间主应力效应和围岩剪胀特性的影响，具有广泛的理论意义。

3.The results of triaxial creep experiments for unloading state show that the frozen soil has an obvious dilatancy, and its volume strain should not be neglected.

卸载状态下冻土三轴蠕变试验结果表明，冻土具有明显的剪胀性，且体积应变不能忽略。

4.This large deformation is called for rock dilatancy if volume dilation only occurs owing to stress redistribution.

这种大变形如果仅是应力重分布引起的体积膨胀则称为岩石扩容。

5.The effects of intermediate principal stress and dilatancy are considered in the unified displacement solution; so the unified solution obtained has very broadly theoretical value.

位移统一解合理地考虑了中间主应力效应和围岩剪胀特性的影响，具有广泛的理论意义。

6.The volumetric strain due to stress dilatancy of sand is found to be composed of a reversible dilatancy component and an irreversible dilatancy component.

基于对较高精度的砂土扭剪试验成果的分析，表明砂土的剪胀是由一个完全可逆的体应变分量和一个不可逆的体应变分量构成的。

7.The phenomenon of dilatancy is observed in certain types of granular materials when they are subjected to shear stress.

在某些类型的颗粒材料受到剪切应力时，观察到dilatancy（膨胀性）现象。

8.During the testing of the soil, we noted that its dilatancy could lead to increased stability under load.

在土壤测试中，我们注意到其dilatancy（膨胀性）可能导致在负载下的稳定性增加。

9.The dilatancy effect can cause quicksand to behave differently when disturbed.

当扰动时，dilatancy（膨胀性）效应会导致流沙表现出不同的行为。

10.In engineering, understanding dilatancy is crucial for predicting the behavior of materials under stress.

在工程学中，理解dilatancy（膨胀性）对于预测材料在应力下的行为至关重要。

11.The dilatancy of a material can significantly affect its performance in construction applications.

材料的dilatancy（膨胀性）可以显著影响其在建筑应用中的性能。

作文

Dilatancy is a fascinating phenomenon that occurs in various materials, particularly in granular substances such as sand and certain types of soils. This term refers to the behavior of these materials when subjected to stress or deformation. When a dilatant material is compressed, it tends to expand or increase in volume instead of simply compressing like most other materials. This unique characteristic can be observed in everyday life, especially in situations involving quicksand or certain types of clay. Understanding dilatancy (膨胀性) is crucial for engineers and scientists who work with these materials, as it can significantly affect the stability and behavior of structures built on or with them. In practical terms, dilatancy (膨胀性) can be seen when you walk on wet sand. As you step onto the surface, the grains of sand are compacted together, but instead of allowing you to sink easily, the sand pushes back against your foot. This is due to the increased pore pressure within the sand, which causes it to behave in a more rigid manner. The more force you apply, the more the sand tries to resist your movement, demonstrating its dilatant properties. This phenomenon is not only limited to sand; it can also be found in various industrial applications. For example, in the production of certain types of concrete, the understanding of dilatancy (膨胀性) can lead to better formulations that enhance the strength and durability of the final product. By manipulating the proportions of the ingredients used, engineers can create concrete that exhibits desirable dilatant behavior, allowing it to withstand greater forces without failing. Moreover, dilatancy (膨胀性) plays a significant role in geotechnical engineering, particularly in the analysis of soil stability during construction projects. When heavy machinery is used on a site, the ground can become saturated with water, leading to increased pore pressure in the soil. If the soil exhibits dilatant behavior, it may not behave as expected under load, potentially leading to issues such as landslides or foundation failure. Therefore, understanding how dilatancy (膨胀性) affects soil mechanics is essential for ensuring the safety and stability of engineering projects. In conclusion, dilatancy (膨胀性) is an important concept that has wide-ranging implications in both natural and engineered systems. Its unique behavior under stress can influence everything from the way we design buildings and roads to our understanding of natural disasters. As research continues in this field, we can expect to uncover even more about how dilatancy (膨胀性) affects materials and structures, ultimately leading to safer and more efficient engineering practices.