photoelasticity

简明释义

英[/ˌfoʊtoʊɪˈlæstɪsɪti/]美[/ˌfoʊtoʊɪˈlæstɪsɪti/]

n. [力] 光测弹性学

英英释义

单词用法

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例句

1.Stress. wave propagation in stepped shafts under impact by dynamic photoelasticity was studied.

本文用动光弹方法研究了受冲击载荷的阶梯轴中的应力波的传播。

2.Based on the principles of transmitted caustics as well as photoelasticity, the two techniques in determining stress intensity factors (SIF) are compared.

以光弹性法及焦散线法的基本原理为基础，对两种方法在确定应力强度因子方面进行了比较。

3.The traditional photoelastic stress-freezing method is extended in this paper in which the physical and experimental bases for THR three-dimensional finite deformation photoelasticity are established.

拓展了传统的光弹性应力冻结法，确立了三维有限变形光弹性的物理和实验基础。

4.The traditional photoelastic stress-freezing method is extended in this paper in which the physical and experimental bases for THR three-dimensional finite deformation photoelasticity are established.

拓展了传统的光弹性应力冻结法，确立了三维有限变形光弹性的物理和实验基础。

5.The dynamic rolling force P on line was tested by electronic measurement combined with photoelasticity.

应用光电组合新方法，成功地测算了在线动态轧制力部。

6.Then, a simple layered plate under impact loading is studied experimentally using dynamic photoelasticity and dynamic caustics to investigate the models accuracy and stability.

为考察其精度和稳定性，对受冲击载荷作用的简单分层平板同时进行了动态光弹性和动态焦散线实验。

7.The blasting strain fields between two adjacent boreholes initiated simultaneously were investigated with the dynamic moire-photoelasticity and strain gauges.

本文分别运用动态云纹-光弹性和电阻应变量测方法研究了相邻两炮孔之间爆炸应变场。

8.The study of stress distribution in materials can be effectively conducted using photoelasticity, which helps visualize internal forces.

使用光弹性可以有效地研究材料中的应力分布，帮助可视化内部力。

9.Engineers often rely on photoelasticity to analyze complex structures under load.

工程师们常常依赖光弹性来分析承载下的复杂结构。

10.In educational settings, photoelasticity demonstrations are used to teach students about stress and strain.

在教育环境中，光弹性演示用于教导学生有关应力和应变的知识。

11.The use of photoelasticity in optical experiments allows researchers to see how light interacts with stressed materials.

在光学实验中使用光弹性可以让研究人员看到光与受力材料的相互作用。

12.By applying photoelasticity, scientists can create detailed maps of stress concentration around defects in materials.

通过应用光弹性，科学家可以创建材料缺陷周围应力集中区域的详细图。

作文

Photoelasticity is a fascinating phenomenon that occurs in certain materials when they are subjected to stress. This property allows for the visualization of stress distribution within a material, making it an invaluable tool in engineering and materials science. When a transparent, photoelastic material is placed under mechanical stress, it exhibits changes in its optical properties, specifically in the way it refracts light. This change can be observed as colorful patterns or fringes when viewed through polarized light filters. The study of photoelasticity (光弹性) has significant applications in various fields, including structural engineering, mechanical design, and even the development of new materials. One of the most common applications of photoelasticity (光弹性) is in the analysis of stress in complex structures. Engineers often utilize photoelastic models to simulate real-world conditions and understand how forces will affect a structure. By creating a scale model of a bridge or a building using a photoelastic material, engineers can apply loads and observe the resulting stress patterns. This visual representation allows them to identify critical stress points and potential failure areas before actual construction begins. Consequently, this method not only enhances safety but also optimizes the design process, leading to more efficient and cost-effective engineering solutions. In addition to structural analysis, photoelasticity (光弹性) plays a crucial role in the field of materials testing. Researchers can use this technique to evaluate the mechanical properties of new materials by observing how they respond to stress. For instance, when developing new polymers or composites, understanding their stress distribution can help predict their performance in real-life applications. This information is vital for industries such as aerospace, automotive, and consumer goods, where material failure can have severe consequences. The principles of photoelasticity (光弹性) are based on the relationship between stress and strain in materials. When a material is deformed, the internal molecular structure changes, leading to variations in its refractive index. This phenomenon can be quantitatively measured using a technique called the photoelastic effect, which involves illuminating the stressed material with polarized light. The resulting interference patterns can be analyzed to determine the magnitude and direction of stress within the material. Moreover, advancements in technology have further enhanced the capabilities of photoelasticity (光弹性). With the introduction of digital imaging and computer software, engineers can now analyze and interpret photoelastic data with greater accuracy and efficiency. Digital photoelasticity allows for the capture of high-resolution images of stress patterns, which can then be processed to generate detailed maps of stress distribution. This progress has made photoelasticity (光弹性) an even more powerful tool in modern engineering practices. In conclusion, photoelasticity (光弹性) is a vital concept in the fields of engineering and materials science, providing insights into stress distribution and material performance. Its applications range from structural analysis to materials testing, making it an essential technique for ensuring safety and efficiency in design and manufacturing. As technology continues to evolve, the potential for photoelasticity (光弹性) to contribute to innovative engineering solutions will only increase, paving the way for safer and more reliable structures in the future.

光弹性是某些材料在受到应力时发生的一种迷人现象。这种特性允许可视化材料内部的应力分布，使其成为工程和材料科学中不可或缺的工具。当透明的光弹性材料在机械应力下被放置时，它会表现出其光学性质的变化，特别是在折射光线的方式上。通过偏振光滤镜观察时，这种变化可以表现为多彩的图案或条纹。光弹性的研究在多个领域具有重要应用，包括结构工程、机械设计，甚至新材料的开发。 光弹性的一个常见应用是在复杂结构的应力分析中。工程师们经常利用光弹性模型来模拟现实条件，并了解力量将如何影响结构。通过使用光弹性材料创建桥梁或建筑的比例模型，工程师可以施加负载并观察随之而来的应力模式。这种可视化表示使他们能够识别关键的应力点和潜在的失效区域，从而在实际施工之前进行评估。因此，这种方法不仅增强了安全性，还优化了设计过程，导致更高效和更具成本效益的工程解决方案。 除了结构分析，光弹性在材料测试领域也发挥着至关重要的作用。研究人员可以利用这一技术评估新材料的机械性能，通过观察它们对应力的反应。例如，在开发新聚合物或复合材料时，了解其应力分布可以帮助预测其在现实应用中的表现。这些信息对于航空航天、汽车以及消费品等行业至关重要，因为材料失效可能会导致严重后果。 光弹性的原理基于材料中应力与应变之间的关系。当材料被变形时，内部分子结构发生变化，导致其折射率的变化。这种现象可以通过一种称为光弹性效应的技术进行定量测量，该技术涉及用偏振光照明受应力影响的材料。由此产生的干涉图样可以被分析，以确定材料内部应力的大小和方向。 此外，技术的进步进一步增强了光弹性的能力。随着数字成像和计算机软件的引入，工程师们现在可以以更高的准确性和效率分析和解释光弹性数据。数字光弹性允许捕捉高分辨率的应力模式图像，这些图像随后可以被处理以生成应力分布的详细图。这个进展使得光弹性成为现代工程实践中更强大的工具。 总之，光弹性是工程和材料科学领域的重要概念，为应力分布和材料性能提供了深入的见解。它的应用范围从结构分析到材料测试，使其成为确保设计和制造安全性和效率的基本技术。随着技术的不断发展，光弹性为创新工程解决方案做出的贡献潜力只会增加，为未来更安全、更可靠的结构铺平道路。