Multi-Scale Analysis and Testing of Tensile Behavior in Polymers with Randomly Oriented and Agglomerated Cellulose Nanofibers

Nanomaterials

Masashi Suzuki¹  Yinli Wang¹  Hiroki Kurita¹  Fumio Narita¹ 

[1] Department of Materials Processing, Graduate School of Engineering, Tohoku University, Sendai 980-8579, Japan;

关键词: multi-scale mechanics;    finite element analysis;    material testing;    cellulose nanofiber;    polymer composites;    tensile modulus;   

DOI  :  10.3390/nano10040700

来源: DOAJ

【 摘 要 】

Cellulose nanofiber (CNF) has been accepted as a valid nanofiller that can improve the mechanical properties of composite materials by mechanical and chemical methods. The purpose of this work is to numerically and experimentally evaluate the mechanical behavior of CNF-reinforced polymer composites under tensile loading. Finite element analysis (FEA) was conducted using a model for the representative volume element of CNF/epoxy composites to determine the effective Young’s modulus and the stress state within the composites. The possible random orientation of the CNFs was considered in the finite element model. Tensile tests were also conducted on the CNF/epoxy composites to identify the effect of CNFs on their tensile behavior. The numerical findings were then correlated with the test results. The present randomly oriented CNF/epoxy composite model provides a means for exploring the property interactions across different length scales.

【 授权许可】

Unknown