Simple model for compression of cellular materials exhibiting serial buckling of the microstructure

Yuhei Yamada, Shingo Maeda

研究成果査読

抄録

Cellular materials are ubiquitous in nature systems and a variety of engineering fields. Although structural disorder in the cellular material plays an important role for the mechanical property, it is not well studied from the view point of physics. This study proposes a simple compression beam grid model of a cellular material as a minimal model for discussing the role of disorder. The model is composed of beams, which exhibit buckling at random strain, and a buckling chain reaction occurs probabilistically due to concentrated stress, which affects the stress-strain curve. The contribution of the model's parameters on the probability of serial buckling are estimated under weak disorder condition and under some approximations. Validity of the analysis is confirmed by numerical simulations.

本文言語English
論文番号114003
ジャーナルjournal of the physical society of japan
90
11
DOI
出版ステータスPublished - 2021 11 15

ASJC Scopus subject areas

  • 物理学および天文学(全般)

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