Debonding simulation of fibre-matrix interfaces of FRP composites with reactive force field

被引：21

作者：

Lin, Kui ^{[1
]}

Yu, Tao ^{[1
]}

机构：

[1] Hong Kong Polytech Univ, Dept Civil & Environm Engn, Hong Kong, Peoples R China

来源：

CONSTRUCTION AND BUILDING MATERIALS | 2021年 / 312卷

关键词：

FRP; Sizing; Interface; Debonding; MD simulations; Reactive force field; Mechanochemical process; MOLECULAR-DYNAMICS SIMULATIONS; MECHANICAL-PROPERTIES; POLYMER COMPOSITES; CARBON-FIBER; EPOXY-RESIN; GLASS-FRP; REINFORCED-CONCRETE; TUBULAR COLUMNS; SHEAR-STRENGTH; GRAPHENE OXIDE;

D O I：

10.1016/j.conbuildmat.2021.125304

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

This paper presents a study on all-atom molecular dynamics (MD) simulations of fibre-matrix interfaces in fibre reinforced polymer (FRP) composites, with a focus on the effect of fibre sizing. The reactive force field ReaxFF was used in the simulations. The sizing treatment was found to significantly increase the interface toughness while has little effect on the peak stress of fibre-matrix interface. The characteristics of the fracture surfaces and the scission of C-O bonds observed in the simulations are consistent with pervious experimental observations. The developed modelling method opens up a new avenue of investigating the deterioration mechanism of FRP under combined mechanical-chemical-thermal actions.

引用

页数：11

共 85 条

[1] Environmental effects on the mechanical properties of glass-FRP and aramid-FRP rebars [J].

Aiello, MA ;

Ombres, L .

MECHANICS OF COMPOSITE MATERIALS, 2000, 36 (05) :395-398

[2] A review on the degradability of polymeric composites based on natural fibres [J].

Azwa, Z. N. ;

Yousif, B. F. ;

Manalo, A. C. ;

Karunasena, W. .

MATERIALS & DESIGN, 2013, 47 :424-442

[3] Molecular Dynamics Simulations of Methanol to Olefin Reactions in HZSM-5 Zeolite Using a ReaxFF Force Field [J].

Bai, Chen ;

Liu, Lianchi ;

Sun, Huai .

JOURNAL OF PHYSICAL CHEMISTRY C, 2012, 116 (12) :7029-7039

[4]

Bank LC., 2006, COMPOSITES CONSTRUCT

[5] Laboratory assessment and durability performance of vinyl-ester, polyester, and epoxy glass-FRP bars for concrete structures [J].

Benmokrane, Brahim ;

Ali, Ahmed H. ;

Mohamed, Hamdy M. ;

ElSafty, Adel ;

Manalo, Allan .

COMPOSITES PART B-ENGINEERING, 2017, 114 :163-174

[6] An internal state variable material model for predicting the time, thermomechanical, and stress state dependence of amorphous glassy polymers under large deformation [J].

Bouvard, J. L. ;

Francis, D. K. ;

Tschopp, M. A. ;

Marin, E. B. ;

Bammann, D. J. ;

Horstemeyer, M. F. .

INTERNATIONAL JOURNAL OF PLASTICITY, 2013, 42 :168-193

[7] A general inelastic internal state variable model for amorphous glassy polymers [J].

Bouvard, J. L. ;

Ward, D. K. ;

Hossain, D. ;

Marin, E. B. ;

Bammann, D. J. ;

Horstemeyer, M. F. .

ACTA MECHANICA, 2010, 213 (1-2) :71-96

[8] A second-generation reactive empirical bond order (REBO) potential energy expression for hydrocarbons [J].

Brenner, DW ;

Shenderova, OA ;

Harrison, JA ;

Stuart, SJ ;

Ni, B ;

Sinnott, SB .

JOURNAL OF PHYSICS-CONDENSED MATTER, 2002, 14 (04) :783-802

[9] Structural solution using molecular dynamics: Fundamentals and a case study of epoxy-silica interface [J].

Bueyuekoeztuerk, Oral ;

Buehler, Markus J. ;

Lau, Denvid ;

Tuakta, Chakrapan .

INTERNATIONAL JOURNAL OF SOLIDS AND STRUCTURES, 2011, 48 (14-15) :2131-2140

[10] Progress on understanding debonding problems in reinforced concrete and steel members strengthened using FRP composites [J].

Buyukozturk, O ;

Gunes, O ;

Karaca, E .

CONSTRUCTION AND BUILDING MATERIALS, 2004, 18 (01) :9-19

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