A microstructure-based finite element analysis model was developed to predict the effective elastic property of cellulose nanowhisker reinforced all-cellulose composite. Analysis was based on the microstructure synthesized with assumption on volume fraction, size, and orientation distribution of cellulose nanowhiskers. Simulation results demonstrated some interesting discovery: With the increase of aspect ratio, the effective elastic modulus increases in isotropic microstructure. The elastic property anisotropy increases with the aspect ratio and anisotropy of nanowhisker orientation. Simulation results from microstructure-based finite element analysis agree well with experimental results, comparing with other homogenization methods: upper bound, lower bound, and self-consistent models. Capturing the anisotropic elastic property, the microstructure-based finite element analysis demonstrated the capability in guiding materials design to improve effective properties.
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January 2012
Bridging Microstructure, Properties, And Processing Of Polymer-Based Advanced Materials
Materials Design of All-Cellulose Composite Using Microstructure Based Finite Element Analysis
Dongsheng Li,
Dongsheng Li
Fundamental and Computational Sciences Directorate,
e-mail: dongsheng.li@pnl.gov
Pacific Northwest National Laboratory
, Richland, WA 99352
Search for other works by this author on:
Xin Sun,
Xin Sun
Fundamental and Computational Sciences Directorate,
Pacific Northwest National Laboratory
, Richland, WA 99352
Search for other works by this author on:
Mohammed A. Khaleel
Mohammed A. Khaleel
Fundamental and Computational Sciences Directorate,
Pacific Northwest National Laboratory
, Richland, WA 99352
Search for other works by this author on:
Dongsheng Li
Fundamental and Computational Sciences Directorate,
Pacific Northwest National Laboratory
, Richland, WA 99352e-mail: dongsheng.li@pnl.gov
Xin Sun
Fundamental and Computational Sciences Directorate,
Pacific Northwest National Laboratory
, Richland, WA 99352
Mohammed A. Khaleel
Fundamental and Computational Sciences Directorate,
Pacific Northwest National Laboratory
, Richland, WA 99352J. Eng. Mater. Technol. Jan 2012, 134(1): 010911 (9 pages)
Published Online: December 21, 2011
Article history
Received:
April 30, 2011
Revised:
September 19, 2011
Online:
December 21, 2011
Published:
December 21, 2011
Citation
Li, D., Sun, X., and Khaleel, M. A. (December 21, 2011). "Materials Design of All-Cellulose Composite Using Microstructure Based Finite Element Analysis." ASME. J. Eng. Mater. Technol. January 2012; 134(1): 010911. https://doi.org/10.1115/1.4005417
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