Development of a simulation procedure for the analysis of three-dimensional fibre-reinforced composites

Composites ◽  
1994 ◽  
Vol 25 (10) ◽  
pp. 925-934
Author(s):  
A.K. Soh
Keyword(s):  
Three Dimensional ◽  
Reinforced Composites ◽  
Simulation Procedure ◽  
Fibre Reinforced Composites

The effect of microscale residual stress from thermal cooldown on the nanoindentation properties of fibre-reinforced composites

2016 ◽  
Vol 50 (29) ◽  
pp. 4147-4158 ◽  
Author(s):  
M Hardiman ◽  
TJ Vaughan ◽  
CT McCarthy
Keyword(s):  
Residual Stress ◽  
Finite Element ◽  
Fibre Composite ◽  
Three Dimensional ◽  
Interfacial Region ◽  
Indentation Modulus ◽  
Reinforced Composites ◽  
Carbon Fibre Composite ◽  
Residual Stress State ◽  
Fibre Reinforced Composites

A two-step finite element framework is presented that examines the effect of microscale thermal residual stress on the nanoindentation properties of fibre-reinforced composites. Firstly, micromechanical modelling is used to determine the residual stress state following thermal cooldown of a carbon-fibre composite material from cure temperature. A three-dimensional finite element nanoindentation model is then used to characterise the effects of residual stress on material properties determined by nanoindentation theory. The results show that the hardness of the matrix pockets decreases following thermal cooldown due to the existence of equibiaxial tensile residual stresses. The hardness property is also found to decrease for the majority of interfacial region stress states, while the microstructural areas where the effects of the residual stress are nullified are determined. The indentation modulus property is relatively insensitive to the microstructural residual stress, and thus is the recommended indentation property to be determined when carrying out a comparative parametric analysis between microstructural regions. The property changes are shown to be insensitive to any errors associated with contact area estimation using the Oliver and Pharr method.

Extrusion Freeform Fabrication of Chopped-Fibre Reinforced Composites

1997 ◽  
Vol 9 (4) ◽  
pp. 449-456 ◽  
Author(s):  
Paul Calvert ◽  
Tung Liang Lin ◽  
Hogan Martin
Keyword(s):  
Carbon Fibre ◽  
Epoxy Resin ◽  
Elastic Properties ◽  
Fibre Orientation ◽  
Three Dimensional ◽  
Reinforced Composites ◽  
Freeform Fabrication ◽  
Large Influence ◽  
Fibre Reinforced Composites ◽  
Extrusion Freeform Fabrication

Extrusion freeform fabrication is a process whereby three-dimensional parts are built by writing successive layers of material onto a support. In this case, two types of epoxy resin have been formed into test bars containing varying fractions of chopped carbon fibre of various lengths. It is shown that the fibre orientation follows the writing direction and has a large influence on the directional elastic properties of the composite. Test bars have also been formed containing multiple layers of reinforced and unreinforced resin to demonstrate the flexibility of this method.

scholarly journals Three-dimensional invariant-based failure criteria for fibre-reinforced composites

2015 ◽  
Vol 55 ◽  
pp. 92-107 ◽  
Author(s):  
P.P. Camanho ◽  
A. Arteiro ◽  
A.R. Melro ◽  
G. Catalanotti ◽  
M. Vogler
Keyword(s):  
Three Dimensional ◽  
Failure Criteria ◽  
Reinforced Composites ◽  
Fibre Reinforced Composites

Report and discussion on “The development of fibre reinforced composites for gas turbines”

1969 ◽  
Vol 48 (10) ◽  
pp. 454
Author(s):  
H.E. Gresham ◽  
Eric Mensforth ◽  
L.R. Beesley ◽  
D. Wilkinson ◽  
R.E. Mills ◽  
...  
Keyword(s):  
Gas Turbines ◽  
Reinforced Composites ◽  
Fibre Reinforced Composites
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