三维旋膜结构的形态设计和可调机械特性:自适应粗粒度建模

IF 3.8 2区 工程技术 Q1 ENGINEERING, MECHANICAL Acta Mechanica Sinica Pub Date : 2024-06-25 DOI:10.1007/s10409-024-23655-x
Yujie Xiang  (, ), Jie Tian  (, ), Keke Tang  (, ), Xianqiao Wang  (, ), Zheng Zhong  (, )
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引用次数: 0

摘要

自旋分解法是一种很有前途的方法,它在探索超材料结构的设计空间方面展现出巨大潜力。然而,由于其参数化和可控性相对容易,旋光结构设计在很大程度上仍局限于规则结构。由于膜的特征要求在建模过程中采用自适应网格,因此有效预测三维旋膜结构的力学性能仍然是一项挑战。本文提出了一种具有定制机械性能的形态设计综合方法,该方法结合了旋光分解法和自适应粗粒度建模,可产生各种形态,如片状、柱状和立方体结构。确定了伪周期参数β和取向参数Θ(θ1、θ2、θ3),以实现各向异性力学性能的最佳目标。我们进行了参数分析,以揭示定制的旋光结构与机械性能之间的相关性。我们的工作为形态变化和调整机械性能提供了一种综合方法,为设计和开发类似三维旋膜结构的定制功能材料铺平了道路。
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Morphological design and tunable mechanical properties of 3D spinodal membrane structures: adaptive coarse-grained modelling

The spinodal decomposition method emerges as a promising methodology, showcasing its potential in exploring the design space for metamaterial structures. However, spinodal structures design is still largely limited to regular structures, due to their relatively easy parameterization and controllability. Efficiently predicting the mechanical properties of 3D spinodal membrane structure remains a challenge, given that the features of the membrane necessitate adaptive mesh through the modelling process. This paper proposes an integrated approach for morphological design with customized mechanical properties, incorporating the spinodal decomposition method and adaptive coarse-grained modeling, which can produce various morphologies such as lamellar, columnar, and cubic structures. Pseudo-periodic parameter β and orientational parameter Θ(θ1, θ2, θ3) are identified to achieve the optimal goal of anisotropic mechanical properties. Parametric analysis is conducted to reveal the correlation between the customized spinodal structure and mechanical performance. Our work provides an integrated approach for morphological variation and tuning mechanical properties, paving the way for the design and development of customized functional materials similar to 3D spinodal membrane structures.

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来源期刊
Acta Mechanica Sinica
Acta Mechanica Sinica 物理-工程:机械
CiteScore
5.60
自引率
20.00%
发文量
1807
审稿时长
4 months
期刊介绍: Acta Mechanica Sinica, sponsored by the Chinese Society of Theoretical and Applied Mechanics, promotes scientific exchanges and collaboration among Chinese scientists in China and abroad. It features high quality, original papers in all aspects of mechanics and mechanical sciences. Not only does the journal explore the classical subdivisions of theoretical and applied mechanics such as solid and fluid mechanics, it also explores recently emerging areas such as biomechanics and nanomechanics. In addition, the journal investigates analytical, computational, and experimental progresses in all areas of mechanics. Lastly, it encourages research in interdisciplinary subjects, serving as a bridge between mechanics and other branches of engineering and the sciences. In addition to research papers, Acta Mechanica Sinica publishes reviews, notes, experimental techniques, scientific events, and other special topics of interest. Related subjects » Classical Continuum Physics - Computational Intelligence and Complexity - Mechanics
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