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Accelerated Curing of Concrete01:25

Accelerated Curing of Concrete

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Accelerating concrete curing is achieved by applying heat and additional moisture. This process accelerates the hydration of the cement, resulting in an earlier strength gain in the concrete. Steam curing is a method wherein the concrete products are either transported through a chamber on a conveyor belt or encased in plastic, allowing steam at atmospheric pressure to circulate freely around them. This process begins with a phase of moist curing that typically lasts between 3 to 5 hours, after...
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Updated: May 10, 2025

Magnet Assisted Composite Manufacturing: A Flexible New Technique for Achieving High Consolidation Pressure in Vacuum Bag/Lay-Up Processes
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全合建模在复合自闭柜固化过程中的多物理和热流体固体问题上.

Zhuoran Yang1, Luohong Liu2, Dinghe Li1

  • 1Sino-European Institute of Aviation Engineering, Civil Aviation University of China, Tianjin 300300, China.

Materials (Basel, Switzerland)
|April 24, 2025
PubMed
概括
此摘要是机器生成的。

这项研究开发了一种多物理模型来模拟复合材料自闭体固化,揭示了空气流如何影响该过程. 一种双向合方法被证明是有效的,提供了类似的准确性,降低了计算成本.

关键词:
自闭锁固化过程自闭锁固化过程复合板材是一种复合板材.完整的合模型建模这是一个多物理问题.热流体固体合问题

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科学领域:

  • 材料科学与工程 材料科学与工程
  • 计算流体动力学的流体动力学.
  • 机械工程 机械工程

背景情况:

  • 自闭柜固化对于复合材料制造至关重要.
  • 了解外部空气流对固化的影响对于过程优化至关重要.
  • 现有的模型可能无法完全捕捉复杂的热-流体-固体相互作用.

研究的目的:

  • 开发和验证一个多物理,热-流体-固体合模型,用于自闭体固化模拟.
  • 研究外部空气流对复合材料固化过程的影响机制.
  • 为了比较单向和双向合方案的效率和准确性.

主要方法:

  • 使用扩展层次方法 (XLWM) 进行复合板材模拟.
  • 采用有限体积法来模拟加热空气流.
  • 对复合板材进行了热化学机械透分析.
  • 开发了一个弱合方法 (单向和双向) 来解决热-流体-固体相互作用.

主要成果:

  • 开发的模型成功模拟了自闭柜固化过程.
  • 双向合方案显示了与单向合相比的准确性.
  • 双向合方案显著减少了计算资源的消耗.

结论:

  • 多物理模型有效地捕捉了外部空气流对复合材料自动固固的影响.
  • 双向合是一种更有效的计算方法来模拟这些合现象.
  • 这项研究为通过先进的模拟优化车固过程提供了基础.