热性能可定制互穿相复合材料反设计的深度学习模型

IF 7.7 2区 材料科学 Q1 MATERIALS SCIENCE, COMPOSITES
Kaiyu Wang, Xin-Lin Gao
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引用次数: 0

摘要

针对具有可定制热性能(包括导热系数(TC)和热膨胀系数(CTE)张量分量)的互穿相复合材料(IPCs),开发了一种新的深度学习模型进行反设计。混合三周期最小表面(TPMS)结构被数学设计为增强相,以构建具有正交异性、四方和立方材料对称性的新型IPCs。采用基于有限元的数值均匀化方法确定了IPCs的有效TC张量和CTE张量。生成包含6个几何参数和6个热性能(分别包括TC和CTE张量的3个非零分量)的鲁棒数据集,以建立拓扑-属性映射。在此基础上,构建了一个新的串联双网络模型,包括正演子模型和逆演子模型,用于预测基于tpms的混合IPCs的热性能和设计拓扑结构。对正、逆子模型进行了超参数优化,使新提出的双网络模型具有良好的预测和设计能力。此外,还提供了实例,表明反向设计的IPCs的热性能与原始数据集内外的目标值匹配良好。目前的深度学习模型为ipc的热性能正向预测和拓扑逆设计提供了新的工具。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Deep learning model for inverse design of interpenetrating phase composites with customizable thermal properties
A new deep learning model is developed for inverse design of interpenetrating phase composites (IPCs) with customizable thermal properties, including the components of the thermal conductivity (TC) and coefficient of thermal expansion (CTE) tensors. Hybrid triply periodic minimal surface (TPMS) structures are mathematically designed as the reinforcement phase to construct the new IPCs, which display orthotropic, tetragonal and cubic material symmetries. The effective TC and CTE tensors of the IPCs are determined using a finite element-based numerical homogenization method. A robust dataset containing six geometrical parameters and six thermal properties (including the three non-zero components of the TC and CTE tensors, respectively) is generated to establish the topology-property mapping. This is followed by the construction of a new tandem dual-network model, including a forward sub-model and an inverse sub-model, to predict the thermal properties and design the topologies of the hybrid TPMS-based IPCs. The hyperparameters are optimized for both the forward and inverse sub-models, which enables the newly proposed dual-network model to have excellent prediction and design capabilities. In addition, examples are provided to show that the thermal properties of the inversely designed IPCs match well with the targeted values within and beyond the original dataset. The current deep learning model provides a new tool for the forward prediction of thermal properties and inverse design of topologies of IPCs.
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来源期刊
Composites Communications
Composites Communications Materials Science-Ceramics and Composites
CiteScore
12.10
自引率
10.00%
发文量
340
审稿时长
36 days
期刊介绍: Composites Communications (Compos. Commun.) is a peer-reviewed journal publishing short communications and letters on the latest advances in composites science and technology. With a rapid review and publication process, its goal is to disseminate new knowledge promptly within the composites community. The journal welcomes manuscripts presenting creative concepts and new findings in design, state-of-the-art approaches in processing, synthesis, characterization, and mechanics modeling. In addition to traditional fiber-/particulate-reinforced engineering composites, it encourages submissions on composites with exceptional physical, mechanical, and fracture properties, as well as those with unique functions and significant application potential. This includes biomimetic and bio-inspired composites for biomedical applications, functional nano-composites for thermal management and energy applications, and composites designed for extreme service environments.
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