Development and characterization of polymer–ceramic continuous fiber reinforced functionally graded composites for aerospace application

2013 ◽  
Vol 26 (1) ◽  
pp. 185-191 ◽  
Author(s):  
Suresh Kumar ◽  
K.V.V.S. Murthy Reddy ◽  
Anil Kumar ◽  
G. Rohini Devi
Keyword(s):  
Functionally Graded ◽  
Fiber Reinforced ◽  
Continuous Fiber ◽  
Aerospace Application ◽  
Functionally Graded Composites

Residual Stresses of Fiber-Reinforced Functionally Graded Composites

2008 ◽  
Vol 575-578 ◽  
pp. 1044-1049
Author(s):  
Zhi Ying Ou ◽  
Dong Xia Lei ◽  
Lian Sheng Ma
Keyword(s):  
Residual Stresses ◽  
Analytical Solutions ◽  
Functionally Graded ◽  
Power Exponent ◽  
Processing Temperature ◽  
Fiber Reinforced ◽  
Concentric Cylinder ◽  
Functionally Graded Composites ◽  
Particular Solution ◽  
Two Phases

The residual stresses induced in fiber-reinforced functionally graded composites cooling down from the processing temperature are determined with concentric cylinder model and analytical solutions of inhomogeneous governing equations for displacement components, which include particular solution and general solution of the corresponding homogeneous equations. The analytical solutions presented here are general for power-law variations of the elastic moduli of the functionally graded matrix. With a power exponent, analytical expressions for the residual stresses of fiber-reinforced functionally graded composites can be obtained. By changing the power exponent and the coefficient of the power terms, the solutions obtained here could be applied to fiber-reinforced functionally graded composites with different properties. The results show that the large difference exists between functionally graded composites and common-used composites consisting of two phases of homogenous materials. The variation of matrix modulus and fiber percentage have a great deal of effects on the residual stresses in functionally graded composites.

Future requirements in the characterization of continuous fiber-reinforced polymeric composites (IUPAC Technical Report)

2002 ◽  
Vol 74 (4) ◽  
pp. 601-628 ◽  
Author(s):  
D. R. Moore ◽  
A. J. Cervenka
Keyword(s):  
Mechanical Properties ◽  
Fiber Reinforced Composites ◽  
Reinforced Composites ◽  
Fiber Reinforced ◽  
Continuous Fiber ◽  
Interfacial Effects ◽  
Technical Report ◽  
Processing Properties ◽  
Historic Background

Characterization of continuous fiber-reinforced composites is examined in terms of processing, properties, and structure. Five processing and five property topics are then examined in terms of reviewing some of the historic background in these areas with the aim of identifying current issues and requirements for the future. The topics covered in the processing section are: polymeric matrix, impregnation, interfacial effects, residual stresses, and pre-preg tack. In the mechanical properties section the topics are: choice of standard, recycling and reusability, durability, environmental strength, and toughness. The paper provides a ten-point plan for future requirements.

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