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Title: Biosusceptibility studies on carbon fibre composites for aerospace applications
Authors: Srivastava, R B
Upreti, M C
Awasthi, Minu
Mathur, G N
Issue Date: Apr-2003
Publisher: NISCAIR-CSIR, India
Abstract: Advanced composites are widely used as structural materials in aerospace applications. Carbon fibre reinforced composites are recognized as structural units for integral fuel tanks. The behaviour of carbon fibre composites as influenced by microbiologically induced degradation due to fuel resident microorganisms has been of considerable interest. The present study incorporates characterization of biofilm generated on carbon fibre composites due to the growth of fuel resident microorganisms in single and combination culture and their effect on the mechanical properties of carbon fibre composites. An exposure of 120 days revealed that the surface of fibre and resin matrix gets uniformly colonized by microorganisms. Aureobasidium pullulans as well as combination of cultures induced a significant (P<0 .05) loss in flexural strength. However, no significant effect was recorded on flexural modulus and interlaminar shear strength properties of carbon fibre composites under the influence of fuel residing microorganisms.
Page(s): 143-147
ISSN: 0975-1017 (Online); 0971-4588 (Print)
Appears in Collections:IJEMS Vol.10(2) [April 2003]

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