Determination of compressive strength of unidirectional composites by three-point bending tests

被引：44

作者：

Carbajal, N. ^{[1
]}

Mujika, F. ^{[1
]}

机构：

[1] Univ Basque Country, Polytech Univ Coll, San Sebastian 20018, Spain

来源：

POLYMER TESTING | 2009年 / 28卷 / 02期

关键词：

Compressive strength; Three-point bending; Indentation; Unidirectional composite; FIBER-REINFORCED COMPOSITES; FLEXURAL STRENGTH; SPECIMEN SIZE; TENSILE; WAVINESS; FAILURE; EPOXY; SHEAR;

D O I：

10.1016/j.polymertesting.2008.11.003

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

A simple way for obtaining compressive strength of unidirectional composites by three-point bending tests is proposed in the present work. The interpretation of test results includes the stress singularity induced by the applied concentrated load and the determination of the contact zone between loading roller and specimen. Unidirectional carbon/epoxy composite T6T/F593 from Hexcel Composites has been tested by three-point bending with different thicknesses and spans. When failure occurs by compressive stresses, experimental results agree with the strength obtained by compressive tests. The best agreement is obtained in the case of 7 mm nominal thickness and span of 120 mm. (C) 2008 Elsevier Ltd. All rights reserved.

引用

页码：150 / 156

页数：7

共 25 条

[1]

ANDREWS C, 2003, 177 C CURE CONTROLLE, P1

[2]

[Anonymous], 1998, ISO 14125

[3]

Chaterjee S., 1993, Compression Test Methods, V2

[4] Microbuckle initiation from a patch of large amplitude fibre waviness in a composite under compression and bending [J].

Fleck, NA ;

Liu, DQ .

EUROPEAN JOURNAL OF MECHANICS A-SOLIDS, 2001, 20 (01) :23-37

[5]

*ISO, 1999, 14121 ISO

[6]

ISO, 2002, ISO 604-Plastics: Determination of Compressive Properties

[7] SCALE EFFECTS IN THE RESPONSE AND FAILURE OF FIBER REINFORCED COMPOSITE LAMINATES LOADED IN TENSION AND IN FLEXURE [J].

JACKSON, KE ;

KELLAS, S ;

MORTON, J .

JOURNAL OF COMPOSITE MATERIALS, 1992, 26 (18) :2674-2705

[8] LONGITUDINAL COMPRESSION STRENGTH OF GLASS-FIBER-REINFORCED COMPOSITES [J].

KIM, RY ;

CRASTO, AS .

JOURNAL OF REINFORCED PLASTICS AND COMPOSITES, 1994, 13 (04) :326-338

[9] On the effect of shear and local deformation in three-point bending tests [J].

Mujika, F. .

POLYMER TESTING, 2007, 26 (07) :869-877

[10] Determination of tensile and compressive moduli by flexural tests [J].

Mujika, F. ;

Carbajal, N. ;

Arrese, A. ;

Mondragon, I. .

POLYMER TESTING, 2006, 25 (06) :766-771

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