Effect of Curing Conditions on the Interface Strength of Single-Fibre Composite Specimens

2012 ◽  
Vol 54 (5) ◽  
pp. 335-339
Author(s):  
Murat Yavuz Solmaz ◽  
Mete Onur Kaman ◽  
Kadir Turan
Keyword(s):  
Fibre Composite ◽  
Single Fibre ◽  
Interface Strength ◽  
Curing Conditions

An Energy-Based interpretation of Interfacial Adhesion from Single Fibre Composite Fragmentation Testing

1993 ◽  
Vol 2 (5) ◽  
pp. 096369359300200 ◽  
Author(s):  
H.D. Wagner ◽  
S. Ling
Keyword(s):  
Interfacial Adhesion ◽  
Mechanical Characteristics ◽  
Interfacial Shear Strength ◽  
Fibre Composite ◽  
Stress Transfer ◽  
Single Fibre ◽  
Transfer Length ◽  
Fragmentation Test ◽  
Energy Balance Approach ◽  
Fibre Matrix

An energy balance approach is proposed for the single fibre composite (or fragmentation) test, by which the degree of fibre-matrix bonding is quantified by means of the interfacial energy, rather than the interfacial shear strength, as a function of the fibre geometrical and mechanical characteristics, the stress transfer length, and the debonding length. The validity of the approach is discussed using E-glass fibres embedded in epoxy, both in the dry state and in the presence of hot distilled water.

Fracture statistics of single-fibre composite specimens

1993 ◽  
Vol 48 (1-4) ◽  
pp. 47-56 ◽  
Author(s):  
C. Baxevanakis ◽  
D. Jeulin ◽  
D. Valentin
Keyword(s):  
Fibre Composite ◽  
Single Fibre

A Comprehensive Model to Predict the Stress Fields in a Single Fibre Composite

1996 ◽  
Vol 30 (14) ◽  
pp. 1514-1538 ◽  
Author(s):  
Devesh Tripathi ◽  
Fangping Chen ◽  
Frank R. Jones
Keyword(s):  
Fibre Composite ◽  
Single Fibre ◽  
Stress Fields ◽  
Comprehensive Model

scholarly journals Clarifying the application of Weibull Statistics for Determining the Stress state of A Fibre from Fragmentation Tests

1993 ◽  
Vol 2 (5) ◽  
pp. 096369359300200 ◽  
Author(s):  
H. D. Wagner ◽  
J. R. Wood ◽  
G. Marom
Keyword(s):  
Compressive Strength ◽  
Stress State ◽  
Fibre Composite ◽  
Single Fibre ◽  
Weibull Statistics ◽  
Novel Technique ◽  
Fragmentation Test ◽  
Single Fibres ◽  
First Time ◽  
Manufacturing Stage

A novel technique was recently introduced in our laboratories for the measurement of the compressive strength of single fibres, based on a modified configuration of the single fibre composite fragmentation test. In particular, the effect of the length of the embedded fibre on its compressive strength was assessed for the first time, based on Weibull statistics considerations. Moreover, during the sample manufacturing stage, a fibre can break in compression due to induced cooling stresses, rather than mechanical stresses, which can be determined from the fragmentation phenomenon. In this note, improved analyses of such compressive fragmentation effects are presented and discussed.

Poisson's stresses in fibre composites. I: Analysis

1984 ◽  
Vol 19 (1) ◽  
pp. 43-49 ◽  
Author(s):  
J Ostrowski ◽  
G T Will ◽  
M R Piggott
Keyword(s):  
Finite Element ◽  
Fibre Composite ◽  
Single Fibre ◽  
Fibre Volume ◽  
Matrix Interface ◽  
Fibre Direction ◽  
Element Analysis ◽  
Infinite Array ◽  
Transverse Stresses ◽  
Fibre Matrix

Two methods have been used to evaluate the transverse stresses when an aligned fibre composite is stressed in the fibre direction. A single fibre model is shown to overestimate the stresses at the fibre-matrix interface by about 20 per cent compared with a finite element solution for an infinite array of fibres. Using relatively few fibres in the finite element analysis, however, only gives very approximate stress distributions. With fibre volume fractions in the range 0-0.50 the average radial stresses across the fibre-matrix interface are always compressive, and can be represented by a relatively simple formula with an accuracy which is normally with in a few percent of the finite element value.

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