Study on Tensile Properties of Nanoreinforced Epoxy Polymer: Macroscopic Experiments and Nanoscale FEM Simulation Prediction

The effect of nanosilica contents on mechanical properties of the epoxy matrix with some nanoparticle aggregations was studied in macroscopic experiments and nanoscale simulation, particularly with regard to the effective modulus and ultimate stress. Three analytical models were used to obtain the e...

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Main Authors:	Zhenqing Wang, Fang Liu, Wenyan Liang, Limin Zhou
Format:	Article
Language:	English
Published:	Hindawi Limited 2013-01-01
Series:	Advances in Materials Science and Engineering
Online Access:	http://dx.doi.org/10.1155/2013/392450

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spelling	doaj-92a7b8d470c149ad922f1e093fa29ccd2020-11-24T20:55:10ZengHindawi LimitedAdvances in Materials Science and Engineering1687-84341687-84422013-01-01201310.1155/2013/392450392450Study on Tensile Properties of Nanoreinforced Epoxy Polymer: Macroscopic Experiments and Nanoscale FEM Simulation PredictionZhenqing Wang0Fang Liu1Wenyan Liang2Limin Zhou3Smart Structures and Advanced Composites Laboratory, College of Aerospace and Civil Engineering, Harbin Engineering University, Harbin 150001, ChinaSmart Structures and Advanced Composites Laboratory, College of Aerospace and Civil Engineering, Harbin Engineering University, Harbin 150001, ChinaSmart Structures and Advanced Composites Laboratory, College of Aerospace and Civil Engineering, Harbin Engineering University, Harbin 150001, ChinaDepartment of Mechanical Engineering, The Hong Kong Polytechnic University, Hong KongThe effect of nanosilica contents on mechanical properties of the epoxy matrix with some nanoparticle aggregations was studied in macroscopic experiments and nanoscale simulation, particularly with regard to the effective modulus and ultimate stress. Three analytical models were used to obtain the effective elastic modulus of nanoparticle-reinforced composites. Based on Monte-Carlo method, the special program for the automatic generation of 2D random distribution particles without overlapping was developed for nanocomposite modeling. Weight fractions of nanoparticles were converted to volume fractions, in order to coordinate the content unit in the simulation. In numerical analysis, the weak interface strengthening and toughening mechanism was adopted. Virtual crack closure technique (VCCT) and extended finite element method (XFEM) were used to simulate phenomena of nanoparticle debonding and matrix crack growth. Experimental and simulation results show a good agreement with each other. By way of simulation, the weak interface toughening and strengthening mechanism of nanocomposites is confirmed.http://dx.doi.org/10.1155/2013/392450
collection	DOAJ
language	English
format	Article
sources	DOAJ
author	Zhenqing Wang Fang Liu Wenyan Liang Limin Zhou
spellingShingle	Zhenqing Wang Fang Liu Wenyan Liang Limin Zhou Study on Tensile Properties of Nanoreinforced Epoxy Polymer: Macroscopic Experiments and Nanoscale FEM Simulation Prediction Advances in Materials Science and Engineering
author_facet	Zhenqing Wang Fang Liu Wenyan Liang Limin Zhou
author_sort	Zhenqing Wang
title	Study on Tensile Properties of Nanoreinforced Epoxy Polymer: Macroscopic Experiments and Nanoscale FEM Simulation Prediction
title_short	Study on Tensile Properties of Nanoreinforced Epoxy Polymer: Macroscopic Experiments and Nanoscale FEM Simulation Prediction
title_full	Study on Tensile Properties of Nanoreinforced Epoxy Polymer: Macroscopic Experiments and Nanoscale FEM Simulation Prediction
title_fullStr	Study on Tensile Properties of Nanoreinforced Epoxy Polymer: Macroscopic Experiments and Nanoscale FEM Simulation Prediction
title_full_unstemmed	Study on Tensile Properties of Nanoreinforced Epoxy Polymer: Macroscopic Experiments and Nanoscale FEM Simulation Prediction
title_sort	study on tensile properties of nanoreinforced epoxy polymer: macroscopic experiments and nanoscale fem simulation prediction
publisher	Hindawi Limited
series	Advances in Materials Science and Engineering
issn	1687-8434 1687-8442
publishDate	2013-01-01
description	The effect of nanosilica contents on mechanical properties of the epoxy matrix with some nanoparticle aggregations was studied in macroscopic experiments and nanoscale simulation, particularly with regard to the effective modulus and ultimate stress. Three analytical models were used to obtain the effective elastic modulus of nanoparticle-reinforced composites. Based on Monte-Carlo method, the special program for the automatic generation of 2D random distribution particles without overlapping was developed for nanocomposite modeling. Weight fractions of nanoparticles were converted to volume fractions, in order to coordinate the content unit in the simulation. In numerical analysis, the weak interface strengthening and toughening mechanism was adopted. Virtual crack closure technique (VCCT) and extended finite element method (XFEM) were used to simulate phenomena of nanoparticle debonding and matrix crack growth. Experimental and simulation results show a good agreement with each other. By way of simulation, the weak interface toughening and strengthening mechanism of nanocomposites is confirmed.
url	http://dx.doi.org/10.1155/2013/392450
work_keys_str_mv	AT zhenqingwang studyontensilepropertiesofnanoreinforcedepoxypolymermacroscopicexperimentsandnanoscalefemsimulationprediction AT fangliu studyontensilepropertiesofnanoreinforcedepoxypolymermacroscopicexperimentsandnanoscalefemsimulationprediction AT wenyanliang studyontensilepropertiesofnanoreinforcedepoxypolymermacroscopicexperimentsandnanoscalefemsimulationprediction AT liminzhou studyontensilepropertiesofnanoreinforcedepoxypolymermacroscopicexperimentsandnanoscalefemsimulationprediction
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Study on Tensile Properties of Nanoreinforced Epoxy Polymer: Macroscopic Experiments and Nanoscale FEM Simulation Prediction

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