Stress concentrations in multiple fibre model composites

被引：14

作者：

Fiedler, B ^{[1
]}

Klisch, A ^{[1
]}

Schulte, K ^{[1
]}

机构：

[1] Tech Univ Hamburg Harburg, Polymer Composites Sect, Hamburg, Germany

来源：

COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING | 1998年 / 29卷 / 9-10期

关键词：

micro mechanics; stress analysis; interfacial shear stress; stress concentration; load transfer; finite element analysis; hypoelasticity;

D O I：

10.1016/S1359-835X(98)00014-1

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The finite element method is used to examine the load transfer in the fibre-matrix interface and between broken and neighbouring unbroken fibres. Three different models for the stress-strain dependence of the matrix were chosen for modelling the stress transfer: linear elastic, linear elastic-ideal plastic and hypoelastic. The hypoelastic behaviour is similar to the time independent viscoelastic behaviour of the polymer matrix. The hypoelastic model of the stress-strain behaviour can describe the mechanical properties of different matrix materials taken from simple tensile tests. The values of the stress intensity factors were used to discuss the different material models. The hypoelastic matrix behaviour results in realistic stress concentration factors K caused by a single fibre break. (C) 1998 Published by Elsevier Science Ltd. All rights reserved.

引用

页码：1013 / 1019

页数：7

共 12 条

[1] Effect of support matrix on interfacial shear strength determination by the bimatrix fragmentation technique [J].

Chen, F ;

Tripathi, D ;

Jones, FR .

COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING, 1996, 27 (07) :505-515

[2] THE ELASTICITY AND STRENGTH OF PAPER AND OTHER FIBROUS MATERIALS [J].

COX, HL .

BRITISH JOURNAL OF APPLIED PHYSICS, 1952, 3 (MAR) :72-79

[3] THEORETICAL ASPECTS OF THE FRAGMENTATION TEST [J].

FEILLARD, P ;

DESARMOT, G ;

FAVRE, JP .

COMPOSITES SCIENCE AND TECHNOLOGY, 1994, 50 (02) :265-279

[4] Stress distribution in single-fibre model composites with perfect bonding [J].

Fiedler, B ;

Schulte, K .

COMPOSITES SCIENCE AND TECHNOLOGY, 1997, 57 (9-10) :1331-1339

[5] Photo-elastic analysis of fibre-reinforced model composite materials [J].

Fiedler, B ;

Schulte, K .

COMPOSITES SCIENCE AND TECHNOLOGY, 1997, 57 (08) :859-867

[6]

Hull D., 1981, INTRO COMPOSITE MAT, V1st

[7] TENSILE PROPERTIES OF FIBRE-REINFORCED METALS - COPPER/TUNGSTEN AND COPPER/MOLYBDENUM [J].

KELLY, A ;

TYSON, WR .

JOURNAL OF THE MECHANICS AND PHYSICS OF SOLIDS, 1965, 13 (06) :329-&

[8] Finite element modelling of interfacial failure in model carbon fibre-epoxy composites [J].

Nath, RB ;

Fenner, DN ;

Galiotis, C .

JOURNAL OF MATERIALS SCIENCE, 1996, 31 (11) :2879-2883

[9] 3-DIMENSIONAL FINITE-ELEMENT ANALYSIS OF THE STRESS-CONCENTRATION AT A SINGLE-FIBER BREAK [J].

NEDELE, MR ;

WISNOM, MR .

COMPOSITES SCIENCE AND TECHNOLOGY, 1994, 51 (04) :517-524

[10] INTERFACIAL SHEAR-STRENGTH STUDIES USING THE SINGLE-FILAMENT-COMPOSITE TEST .1. EXPERIMENTS ON GRAPHITE FIBERS IN EPOXY [J].

NETRAVALI, AN ;

HENSTENBURG, RB ;

PHOENIX, SL ;

SCHWARTZ, P .

POLYMER COMPOSITES, 1989, 10 (04) :226-241

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