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<p>Advances in material functionalities drive innovations across various fields, where metamaterials—defined by structure rather than composition—are leading the way. Despite the rise of artificial intelligence (AI)-driven design strategies, their impact is limited by task-specific retraining, poor out-of-distribution (OOD) generalization, and the need for separate models for forward and inverse design. To address these limitations, we introduce the <Emphasis Type="Underline">Meta</Emphasis>material <Emphasis Type="Underline">FO</Emphasis>undation Model (MetaFO), a Bayesian transformer-based foundation model inspired by large language models. MetaFO learns the underlying mechanics of metamaterials, enabling probabilistic, zero-shot predictions across diverse, unseen combinations of material properties and structural responses. It also excels in nonlinear inverse design, even under OOD conditions. By treating metamaterials as an operator that maps material properties to structural responses, MetaFO uncovers intricate structure-property relationships and significantly expands the design space. This scalable and generalizable framework marks a paradigm shift in AI-driven metamaterial discovery, paving the way for next-generation innovations.</p>

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Toward a robust and generalizable metamaterial foundation model

  • 期刊论文

  • 出版模式：

    开放获取

  • 发表日期：

    2025年12月29日

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  • Namjung Kim,
  • Dongseok Lee,
  • Jongbin Yu,
  • Sung Woong Cho,
  • Dosung Lee,
  • Yesol Park,
  • Youngjoon Hong

摘要

Advances in material functionalities drive innovations across various fields, where metamaterials—defined by structure rather than composition—are leading the way. Despite the rise of artificial intelligence (AI)-driven design strategies, their impact is limited by task-specific retraining, poor out-of-distribution (OOD) generalization, and the need for separate models for forward and inverse design. To address these limitations, we introduce the Metamaterial FOundation Model (MetaFO), a Bayesian transformer-based foundation model inspired by large language models. MetaFO learns the underlying mechanics of metamaterials, enabling probabilistic, zero-shot predictions across diverse, unseen combinations of material properties and structural responses. It also excels in nonlinear inverse design, even under OOD conditions. By treating metamaterials as an operator that maps material properties to structural responses, MetaFO uncovers intricate structure-property relationships and significantly expands the design space. This scalable and generalizable framework marks a paradigm shift in AI-driven metamaterial discovery, paving the way for next-generation innovations.