Computational modeling of interfacial behaviors in nanocomposite materials

INTERNATIONAL JOURNAL OF SOLIDS AND STRUCTURES

卷:115

Article

Lin, Liqiang¹  Wang, Xiaodu¹  Zeng, Xiaowei¹ 

[1] Univ Texas San Antonio, Dept Mech Engn, San Antonio, TX 78249 USA

关键词: Material interface modeling;    Organic interface;    Nacre;    Biological nanocomposite;    Polycrystalline structure;   

DOI  :  10.1016/j.ijsolstr.2017.02.029

来源: Elsevier

【 摘 要 】

Towards understanding the bulk material response in nanocomposites, an interfacial zone model was proposed to define a variety of material interface behaviors (e.g. brittle, ductile, rubber-like, elastic-perfectly plastic behavior etc.). It also has the capability to predict bulk material response though independently control of the interface properties (e.g. stiffness, strength, toughness). The mechanical response of granular nanocomposite (i.e. nacre) was investigated through modeling the relatively soft organic interface as an interfacial zone among hard mineral tablets and simulation results were compared with experimental measurements of stress-strain curves in tension and compression tests. Through modeling varies material interfaces, we found out that the bulk material response of granular nanocomposite was regulated by the interfacial behaviors. This interfacial zone model provides a possible numerical tool for qualitatively understanding of structure-property relationships through material interface design. (C) 2017 Elsevier Ltd. All rights reserved.

【 授权许可】

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