A new three-phase model to estimate the effective elastic properties of semi-crystalline polymers: Application to PET

被引：61

作者：

Gueguen, O. ^{[1
,2
]}

Ahzi, S. ^{[1
]}

Makradi, A. ^{[1
]}

Belouettar, S. ^{[2
]}

机构：

[1] Univ Strasbourg, IMFS, F-67000 Strasbourg, France

[2] LTI, Res Ctr Henry Tudor, L-4221 Luxembourg, Luxembourg

来源：

MECHANICS OF MATERIALS | 2010年 / 42卷 / 01期

关键词：

Micromechanical modeling; Semi-crystalline polymers; Effective elastic properties; Threephase model; Interphase; PET; DOUBLE-INCLUSION MODEL; MECHANICAL-PROPERTIES; STRENGTHENED MATERIALS; MORI-TANAKA; CRYSTALLINE; ORIENTATION; BEHAVIOR;

D O I：

10.1016/j.mechmat.2009.04.012

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

In this paper, the effective elastic properties of semi-crystalline polymers are computed through a new three-phase model. The formulation of this approach is based on recent thermal analyses which revealed the existence of an intermediate phase during cooling from the melt in semi-crystalline polymers. At the microscopic level, a three-phase composite inclusion constituted by three adjacent layers (a crystalline lamella, a rigid amorphous interphase and a mobile amorphous phase) is considered to estimate, via homogenization methods, the effective elastic properties of the material. Our model is applied to poly(ethylene terephthalate) and a good agreement is obtained, for different crystallinities, between our predicted results and the experimental ones found in the literature. The model is also compared to the N-phase inclusion model of Hori and Nemat-Nasser [Hori, M., Nemat-Nasser, S., 1993. Double-inclusion and overall moduli of multi-phase composites, Mechanics of Materials 14, 189-206] by considering an extension of the double-inclusion model to a three-phase inclusion model. (C) 2009 Elsevier Ltd. All rights reserved.

引用

页码：1 / 10

页数：10

共 33 条

[1] The double-inclusion model: a new formulation and new estimates [J].

Aboutajeddine, A ;

Neale, KW .

MECHANICS OF MATERIALS, 2005, 37 (2-3) :331-341

[2] DESCRIPTION OF ORIENTATION COHERENCE IN POLYCRYSTALLINE MATERIALS [J].

ADAMS, BL ;

MORRIS, PR ;

WANG, TT ;

WILLDEN, KS ;

WRIGHT, SI .

ACTA METALLURGICA, 1987, 35 (12) :2935-2946

[3]

AHZI S, 1995, CURRENT RES THERMO M, P31

[4] Composite modeling for the effective elastic properties of semicrystalline polymers [J].

Ahzi, Said ;

Bahlouli, Nadia ;

Makradi, Ahmed ;

Belouettar, Salim .

JOURNAL OF MECHANICS OF MATERIALS AND STRUCTURES, 2007, 2 (01) :1-21

[5] Mobile amorphous phase fragility in semi-crystalline polymers: Comparison of PET and PLLA [J].

Arnoult, M. ;

Dargent, E. ;

Mano, J. F. .

POLYMER, 2007, 48 (04) :1012-1019

[6] Conformational statistics of polymer chains in the interphase of semi-crystalline polymers [J].

Balijepalli, S ;

Rutledge, GC .

COMPUTATIONAL AND THEORETICAL POLYMER SCIENCE, 2000, 10 (1-2) :103-113

[7] Micromechanical modeling of isotropic elastic behavior of semicrystalline polymers [J].

Bédoui, F ;

Diani, J ;

Régnier, G ;

Seiler, W .

ACTA MATERIALIA, 2006, 54 (06) :1513-1523

[8] A NEW APPROACH TO THE APPLICATION OF MORI-TANAKA THEORY IN COMPOSITE-MATERIALS [J].

BENVENISTE, Y .

MECHANICS OF MATERIALS, 1987, 6 (02) :147-157

[9] Bounding elastic constants of an orthotropic polycrystal using measurements of the microstructure [J].

Beran, MJ ;

Mason, TA ;

Adams, BL ;

Olson, T .

JOURNAL OF THE MECHANICS AND PHYSICS OF SOLIDS, 1996, 44 (09) :1543-1563

[10] Constitutive model for the finite deformation stress-strain behavior of poly(ethylene terephthalate) above the glass transition [J].

Boyce, MC ;

Socrate, S ;

Llana, PG .

POLYMER, 2000, 41 (06) :2183-2201

← 1 2 3 4 →