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相关概念视频

Members Made of Elastoplastic Material01:19

Members Made of Elastoplastic Material

384
The behavior of elastoplastic materials under bending stresses, particularly in structural members with rectangular cross-sections, is crucial for predicting material responses and understanding failure modes. Initially, when a bending moment is applied, the stress distribution across the section follows Hooke's Law and is linear and elastic. This distribution means the stress increases from the neutral axis to the maximum at the outer fibers, up to the elastic limit.
As the bending moment...
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Genetic Material01:20

Genetic Material

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Within the human body, a complex and detailed system of trillions of cells works in unison to sustain life. Each cell houses a nucleus, which contains 46 chromosomes divided into 23 pairs. Chromosomes are highly coiled structures made of the genetic material DNA. These chromosomes are essential carriers of genetic information, with half inherited from the mother through her egg and the other half from the father's sperm, combining to create the unique genetic makeup of an individual.
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Bending of Members Made of Several Materials01:11

Bending of Members Made of Several Materials

574
In analyzing a structural member composed of two different materials with identical cross-sectional areas, it is crucial to understand how their distinct elastic properties affect the member's response under load. The analysis involves assessing stress and strain distributions using the transformed section concept, which accounts for variations in material properties.
Hooke's Law determines stress in each material, stating that stress is proportional to strain but varies due to each material's...
574
Bending of Material: Problem Solving01:09

Bending of Material: Problem Solving

500
In this lesson, determine the ratio of the maximum bending moments applied to two metal pipes, given that both pipes can withstand a maximum stress of 100 MPa. Both pipes have an outer radius of 1.8 cm. Pipe A has an inner radius of 1.5 cm, and Pipe B has an inner radius of 1 cm. The ratio of the maximum bending moment applied to two metallic pipes, each with a different inner and outer radius, is determined by considering their dimensions. The inner radius of the first pipe is 1.5 cm, and for...
500
Circular Shafts - Elastoplastic Materials01:24

Circular Shafts - Elastoplastic Materials

475
The study of solid circular shafts under stress shows that within the elastic limit, stress increases directly to the distance from the shaft's center. This relationship holds until the shaft reaches a critical point of stress, beyond which it begins to yield, marking the transition from elastic to plastic deformation. At this crucial juncture, the maximum torque the shaft can endure without permanent deformation is determined, signifying the limit of its elastic behavior.
As torque on the...
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Stress-Strain Diagram - Ductile Materials01:24

Stress-Strain Diagram - Ductile Materials

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The stress-strain relationship in ductile materials such as structural steel or aluminium is intricate and progresses through several stages. When a specimen is loaded, it initially exhibits a linear length increase, depicted by a steep straight line on the stress-strain diagram. It indicates the material is elastically deforming and will return to its original shape once unloaded. However, when a critical stress value is reached, plastic deformation begins. This stage sees substantial...
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相关实验视频

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Characterization of Full Set Material Constants and Their Temperature Dependence for Piezoelectric Materials Using Resonant Ultrasound Spectroscopy
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材料合成2025 (MatSyn25) 对二维材料的数据集

Chengbo Li1,2, Ying Wang3,4, Qianying Wang3

  • 1State Key Laboratory of High Performance Ceramics, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai 200050, China.

ACS applied materials & interfaces
|January 22, 2026
PubMed
概括

研究人员创建了MatSyn25,这是一个2D材料合成过程的大数据集,以加速人工智能驱动的材料发现. 该资源有助于预测新型二维材料的合成可靠性.

关键词:
互动平台是一个互动的平台.大型语言模型材料合成 材料合成科学数据集是一组科学数据集.两个维的材料是二维材料.

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科学领域:

  • 材料科学 材料科学 材料科学
  • 人工智能的人工智能
  • 数据科学数据科学数据科学

背景情况:

  • 二维 (2D) 材料具有独特的特性,对能源,环境和航空航天应用有价值.
  • 人工智能 (AI) 加快了新型二维材料的发现和设计.
  • 预测设计的2D材料的可靠合成过程仍然是一个重大的挑战,因为缺乏基本的理论和数据.

研究的目的:

  • 为了解决二维材料合成中的数据短缺问题.
  • 引入一个大规模的,2D材料合成过程的开放数据集.
  • 为了促进人工智能驱动的材料科学进步.

主要方法:

  • 通过从85,160篇研究文章中提取合成信息,编制了材料合成2025 (MatSyn25) 数据集.
  • 包括163,240个合成过程记录,包含材料细节和逐步程序.
  • 开发MatSyn AI,一种专门用于材料合成的AI模型,以及用于数据探索的交互式网络平台.

主要成果:

  • 创建了MatSyn25,这是一个关于二维材料合成过程的全面开放数据集.
  • 建立了MatSyn AI,这是一个针对材料合成的AI工具.
  • 推出了一个用于多面数据探索的交互平台 (https://matsynai.stpaper.cn/).

结论:

  • MatSyn25为研究界提供了一个至关重要的资源.
  • 数据集和相关的AI工具将加速人工智能辅助的材料科学.
  • MatSyn25的公共可用性促进了2D材料合成和发现的协作进步.