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関連する概念動画

Bending of Material: Problem Solving01:09

Bending of Material: Problem Solving

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...
Bending of Members Made of Several Materials01:11

Bending of Members Made of Several Materials

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...
Thermal expansion and Thermal stress: Problem Solving01:27

Thermal expansion and Thermal stress: Problem Solving

San Francisco's Golden Gate Bridge is exposed to temperatures ranging from -15 °C to 40 °C. At its coldest, the main span of the bridge is 1275 m long. Assuming that the bridge is made entirely of steel, what is the change in its length between these temperatures?
To solve the problem, first, identify the known and unknown quantities. The initial length (L) of the bridge is 1275 m, the coefficient of linear expansion (α) for steel is 12 x 10-6/°C, and the change in temperature (ΔT) is 55 °C.
Estimation of the Physical Quantities01:05

Estimation of the Physical Quantities

On many occasions, physicists, other scientists, and engineers need to make estimates of a particular quantity. These are sometimes referred to as guesstimates, order-of-magnitude approximations, back-of-the-envelope calculations, or Fermi calculations. The physicist Enrico Fermi was famous for his ability to estimate various kinds of data with surprising precision. Estimating does not mean guessing a number or a formula at random. Instead, estimation means using prior experience and sound...
Experimental Designs01:16

Experimental Designs

An experimental design is a systematic process that allows researchers to evaluate the relationship between dependent and independent variables. There are three widely used types of experimental design - pre-experimental design, true experimental design, and quasi-experimental design. In pre-experimental design, the researcher compares the data before and after some interventions or treatments. The true-experimental design has more than one purposefully created group, a commonly measured...
Generalized Hooke's Law01:22

Generalized Hooke's Law

The generalized Hooke's Law is a broadened version of Hooke's Law, which extends to all types of stress and in every direction. Consider an isotropic material shaped into a cube subjected to multiaxial loading. In this scenario, normal stresses are exerted along the three coordinate axes. As a result of these stresses, the cubic shape deforms into a rectangular parallelepiped. Despite this deformation, the new shape maintains equal sides, and there is a normal strain in the direction of the...

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Updated: Jul 3, 2026

Characterizing Dissipative Elastic Metamaterials Produced by Additive Manufacturing
09:39

Characterizing Dissipative Elastic Metamaterials Produced by Additive Manufacturing

Published on: June 28, 2024

実験的な投入なしに材料の性質をモデル化するための課題

Emily A Carter1

  • 1Department of Mechanical and Aerospace Engineering and Program in Applied and Computational Mathematics, Princeton University, Princeton, NJ 08544-5263, USA. eac@princeton.edu

Science (New York, N.Y.)
|August 9, 2008
PubMed
まとめ
この要約は機械生成です。

量子力学モデルは,実証的方法の限界を克服し,正確な材料の行動シミュレーションを提供します. このアプローチは,複雑な材料科学の研究のためのより正確で独立したデータソースを提供します.

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A Coupled Experiment-finite Element Modeling Methodology for Assessing High Strain Rate Mechanical Response of Soft Biomaterials
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A Coupled Experiment-finite Element Modeling Methodology for Assessing High Strain Rate Mechanical Response of Soft Biomaterials

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Experimental Methods for Investigation of Shape Memory Based Elastocaloric Cooling Processes and Model Validation
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Experimental Methods for Investigation of Shape Memory Based Elastocaloric Cooling Processes and Model Validation

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Characterizing Dissipative Elastic Metamaterials Produced by Additive Manufacturing
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A Coupled Experiment-finite Element Modeling Methodology for Assessing High Strain Rate Mechanical Response of Soft Biomaterials
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Experimental Methods for Investigation of Shape Memory Based Elastocaloric Cooling Processes and Model Validation
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科学分野:

  • マテリアルサイエンス 材料科学
  • コンピューティング・マテリアル・サイエンス・サイエンス
  • 量子力学は,量子力学という

背景:

  • 材料の行動シミュレーションは,材料科学において極めて重要です.
  • 実験的な測定は間接的であり,技術的に制限されることもあります.
  • 経験的モデルは,より単純なシステムへのパラメータ依存による不正確さを導入します.

研究 の 目的:

  • 現在の量子力学に基づく材料モデリングのアプローチをレビューする.
  • これらの方法の成功と限界について議論する.
  • 材料科学における量子力学モデリングの将来の展望を提供すること.

主な方法:

  • 量子力学に基づく材料モデリングに関する既存の文献のレビュー.
  • 材料科学の様々な文脈におけるこれらのモデルの適用の分析.
  • 異なる量子力学アプローチの正確性と適用性の評価.

主要な成果:

  • 量子力学モデルは,材料の行動に関する独立したデータソースを提供します.
  • これらのモデルは,高度な材料システムの複雑さをよりよく捉えることができます.
  • 現在のアプローチは成功を示していますが,限界もあります.

結論:

  • 量子力学に基づくモデリングは,材料科学の研究のための強力なツールです.
  • 現在の限界を克服するために,継続的な開発が必要である.
  • このアプローチは,将来の材料の発見と設計に,大きな希望をもたらします.