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相关概念视频

Dynamic Modulus of Elasticity of Concrete01:16

Dynamic Modulus of Elasticity of Concrete

292
The dynamic modulus of elasticity assesses how a concrete structure deforms under impact or dynamic loads. It is typically higher than the static modulus of elasticity, measured under slow, steady loading conditions.
The sonic test is a common method to determine the dynamic modulus. In this test, a concrete beam, sized either 6 x 6 x 30 inches or 4 x 4 x 20 inches, is clamped at its center. Vibrations are initiated at one end of the beam by an electromagnetic exciter unit powered by...
292

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Characterizing Dissipative Elastic Metamaterials Produced by Additive Manufacturing
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在弹性和声学超材料科学科学当前的发展.

Giuseppe Failla1, Alessandro Marzani2, Antonio Palermo2

  • 1Department of Civil, Energy, Environmental and Materials Engineering (DICEAM), University of Reggio Calabria, Via Zehender , Reggio Calabria 89124, Italy.

Philosophical transactions. Series A, Mathematical, physical, and engineering sciences
|July 29, 2024
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概括

超材料是工程材料,具有用于机械和声学应用的独特特性. 这项研究探讨了对弹性和声学超材料的尖端理论,计算和实验研究.

关键词:
声学 声学 声学 声学计算建模计算建模设计 设计 设计 设计弹性动力学 弹性动力学超材料是一种金属材料.波浪控制 波浪控制 波浪控制

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科学领域:

  • 物理 物理学 物理
  • 材料科学 材料科学 材料科学
  • 工程 工程师 工程师 工程师

背景情况:

  • 超材料代表了一个新的科学前沿,具有超越自然材料的工程性质.
  • 它们的独特特征源于各种规模的设计建筑.
  • 超材料为机械和声学应用提供了巨大的潜力.

研究的目的:

  • 编制关于弹性和声学超材料的当前理论,计算和实验研究.
  • 提供关于该领域近期进展和未来挑战的广泛概述.
  • 为主题问题"弹性和声学超材料科学当前发展 (第一部分) "做出贡献.

主要方法:

  • 理论研究理论研究.
  • 计算模拟的计算模拟.
  • 实验调查是实验性的研究.

主要成果:

  • 针对新型属性的量身定制架构的演示.
  • 在机械和声学应用中探索不可预见的机会.
  • 汇编了最先进的研究成果.

结论:

  • 超材料是一个快速发展的领域,具有巨大的潜力.
  • 跨学科的方法对于进一步发展至关重要.
  • 这个系列突出了弹性和声学超材料科学的动态进步.