Flexural properties of glass and carbon fiber reinforced epoxy hybrid composites

被引:43
作者
Dong, Chensong [1 ]
Davies, Ian J. [1 ]
机构
[1] Curtin Univ, Dept Mech Engn, Perth, WA 6845, Australia
关键词
Polymer-matrix composites; glass fiber; carbon fiber; hybrid; flexural properties; UNIDIRECTIONAL COMPOSITES; COMPRESSIVE STRENGTH; DIMENSIONAL VARIATIONS; THERMAL-EXPANSION; FAILURE; BEHAVIOR; COEFFICIENTS; PREDICTION; PLASTICS;
D O I
10.1177/1464420712459396
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
A study on the flexural properties of hybrid glass and carbon fiber reinforced epoxy composites is presented in this article. Three combinations of the carbon and glass fibers, i.e. S-2&T700S, S-2&TR30S and E&TR30S, were chosen to make hybrid composite specimens. Specimens were made by the hand lay-up process in an intra-ply configuration with varying degrees of glass fibers added to the surface of a carbon laminate. These specimens were then tested in the three-point bend configuration in accordance with ASTM D790-07 at a span to depth ratio of 32. The failure modes were examined under an optical microscope, and it was found that the dominant failure mode was compressive failure. The flexural behavior was also simulated using finite element analysis, and the flexural modulus, flexural strength and strain to failure were calculated. Both the experiments and finite element analysis suggest flexural modulus decreases with increasing percentage of glass fibers. Positive hybrid effects exist by substituting carbon fibers with glass fibers on the compressive surface.
引用
收藏
页码:308 / 317
页数:10
相关论文
共 29 条
[1]   Verification of the capability for quantitative stress prediction during epoxy cure [J].
Adolf, D ;
Chambers, R .
POLYMER, 1997, 38 (21) :5481-5490
[2]  
[Anonymous], 2007, STAND TEST METH FLEX
[3]   Compressive failure of fiber composites under multi-axial loading [J].
Basu, S ;
Waas, AM ;
Ambur, DR .
JOURNAL OF THE MECHANICS AND PHYSICS OF SOLIDS, 2006, 54 (03) :611-634
[4]   PREDICTION OF COEFFICIENTS OF THERMAL-EXPANSION FOR UNIDIRECTIONAL COMPOSITES [J].
BOWLES, DE ;
TOMPKINS, SS .
JOURNAL OF COMPOSITE MATERIALS, 1989, 23 (04) :370-388
[5]   COMPRESSIVE FAILURE OF FIBER COMPOSITES [J].
BUDIANSKY, B ;
FLECK, NA .
JOURNAL OF THE MECHANICS AND PHYSICS OF SOLIDS, 1993, 41 (01) :183-211
[6]   STRENGTH RATIOS OF COMPOSITE-MATERIALS IN FLEXURE AND IN TENSION [J].
BULLOCK, RE .
JOURNAL OF COMPOSITE MATERIALS, 1974, 8 (APR) :200-206
[7]  
Chou T.-W., 1992, MICROSTRUCTURAL DESI
[8]   Influence of fibre cross-sectional aspect ratio on mechanical properties of glass-fibre/epoxy composites II. Interlaminar fracture and impact behaviour [J].
Deng, SQ ;
Ye, L ;
Mai, YW .
COMPOSITES SCIENCE AND TECHNOLOGY, 1999, 59 (11) :1725-1734
[9]   Modeling the Dimensional Variations of Composites Using Effective Coefficients of Thermal Expansion [J].
Dong, Chensong .
JOURNAL OF COMPOSITE MATERIALS, 2009, 43 (22) :2639-2652
[10]   Modeling the process-induced dimensional variations of general curved composite components and assemblies [J].
Dong, Chensong .
COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING, 2009, 40 (08) :1210-1216