Accession Number : ADA298243

Title :   Microbial Degradation at Stressed Fiber Reinforced Polymeric Composites.

Descriptive Note : Proceedings,

Corporate Author : HITACHI LTD KANAGAWA (JAPAN) PRODUCTION ENGINEERING RESEARCH LAB

Personal Author(s) : Wagner, Patricia ; Ray, Richard ; Hart, Kevin ; Little, Brenda ; Bradley, Walter

PDF Url : ADA298243

Report Date : 1995

Pagination or Media Count : 11

Abstract : Reduction of tensile strength was demonstrated for carbon fiber reinforced epoxy resin composite strips after exposure to sulfate-reducing bacteria (SRB) in batch culture. Composite strips were maintained in a stressed condition in 3- and 4-point bend fixtures before and during exposure. Exposed surfaces were examined microscopically for bacterial colonization, fiber disruption and disbonding. Mechanical testing and acoustic emission (AE) examinations were used to evaluate degradation of tensile strength.

Descriptors :   *FIBERS, *POLYMERS, *COMPOSITE MATERIALS, TEST AND EVALUATION, STRESSES, MECHANICAL PROPERTIES, TENSILE STRENGTH, DEGRADATION, EXPOSURE(GENERAL), BACTERIA, REDUCTION, STRESS CORROSION, SULFATES, BATCH PROCESSING, ACOUSTIC EMISSIONS, CULTURE, COLONIES(BIOLOGY), MICROORGANISMS, BIODETERIORATION, REDUCTION(CHEMISTRY).

Subject Categories : Polymer Chemistry
      Laminates and Composite Materials
      Textiles

Distribution Statement : APPROVED FOR PUBLIC RELEASE