# Computational design of mechanical metamaterials through misaligned periodic microstructure

https://mdr.nims.go.jp/datasets/71d54965-5157-4cb7-a4d9-9f5f6eede73d

## Files

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## Id

71d54965-5157-4cb7-a4d9-9f5f6eede73d

## Local identifier



## Visibility

open_to_public

## State

published

## Created at

2025-04-03T01:55:11.172387Z

## Updated at

2025-04-22T23:30:17.703877Z

## Published at

2025-04-22T23:17:21.022324Z

## Doi



## First published url

https://doi.org/10.1016/j.matdes.2025.113819

## Date published

2025-03-20

## Recorded date published

2025-5

## Resource type

journal_article

## Manuscript type

vor

## Collection



## Title

- title: Computational design of mechanical metamaterials through misaligned periodic
    microstructure
  title_type: original
  lang: en

## Description

- description: Mechanical metamaterials, with their intricately designed microstructures,
    exhibit properties that are superior to those of natural materials. Computational
    optimization, which uses finite element analysis of periodic microstructures,
    enables the design of architected microstructures to achieve desired macroscopic
    properties. Traditionally, unit cells are defined within cuboidal domains; however,
    this study extends the design to parallelepiped domains, significantly expanding
    design possibilities. This study investigates the influence of geometric design
    domains on the topology optimization of negative Poisson's ratio (NPR) metamaterials.
    Using the mathematical homogenization method, unit cells within parallelogram
    or parallelepiped domains are represented within square or cubic domains under
    misaligned periodic boundary conditions. This approach enables the manipulation
    of macroscopic elastic stiffness components while maintaining the solid volume
    fraction. A comparative analysis was performed to examine the geometric characteristics
    of optimized microstructures and the resulting macroscopic anisotropy under both
    standard and misaligned periodic boundary conditions. 3D-printed NPR metamaterials
    were tested to validate the design. The results demonstrate the effectiveness
    of the computational design method in generating diverse microstructures with
    misalignment, opening new avenues for designing NPR metamaterials with enhanced
    properties.
  description_type: abstract
  lang: und

## Creator

- name: Jiaxin Zhou
  role: author
  orcid: https://orcid.org/0000-0001-7681-1668
- name: Ikumu Watanabe
  role: author
  orcid: https://orcid.org/0000-0002-7693-1675
- name: Keita Kambayashi
  role: author
  orcid: https://orcid.org/0009-0008-6439-1721

## Contact agent



## Publisher

organization: Elsevier BV

## Managing organization



## Keyword

- subject: Microstructure design
  schema: not_defined
- subject: Misaligned periodicity
  schema: not_defined
- subject: Finite element method
  schema: not_defined
- subject: Topology optimization
  schema: not_defined
- subject: Negative Poisson’s ratio
  schema: not_defined
- subject: Mechanical metamaterials
  schema: not_defined

## Rights

- identifier: https://creativecommons.org/licenses/by-nc/4.0/

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## Data origin



## Embargo



## Journal

- title: Materials & Design
  issn: '02641275'
  volume: '253'
  article_number: '113819'

## Conference



## Related item



## Funding

- identifier: JPMJSP2124
  funder_name: Japan Science and Technology Agency
  description: Supporting Program for Innovative Research on CuttingEdge Science and
    Technology

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## Fileset

- id: b3902554-08ec-490f-a56e-db70e44b0a1d
  filename: zhou_jmad2025.pdf
  content_type: application/pdf
  size: 4890210
  md5: 559465def48c7ad16cc3db8e6fe077c5

## Thumbnail

fileset_id: b3902554-08ec-490f-a56e-db70e44b0a1d
filename: zhou_jmad2025.pdf