Accession Number : AD1035223


Title :   Compression-after-Impact and Bend Fatigue Results of Glass/Epoxy Composites with Compliant Interlayer and Needling Interlaminar Enhancements


Descriptive Note : Technical Report,01 Oct 2013,30 Sep 2016


Corporate Author : US Army Research Laboratory Aberdeen Proving Ground United States


Personal Author(s) : Haynes, Robert A ; Boyd,Steven E ; Lawrence,Bradley D


Full Text : https://apps.dtic.mil/dtic/tr/fulltext/u2/1035223.pdf


Report Date : 22 May 2017


Pagination or Media Count : 32


Abstract : In this work, we tested 2-D and 3-D woven S2-glass/SC-15 epoxy composite laminates with compliant interlayer and needling interlaminar enhancements for single impact performance, compression-after-impact strength, and bend and shear fatigue life. The interlaminar enhancements decreased the strength and stiffness of the material but improved the durability. Needling had a larger improvement in compression-after-impact strength than the compliant interlayer, while the compliant interlayer had a larger improvement in stress-versus-fatigue-life slope than the needling.


Descriptors :   epoxy composites , laminates , impact tests , compression , strength (mechanics) , fatigue life , BENDING , shear tests , STIFFNESS , composite materials


Subject Categories : Laminates and Composite Materials
      Mechanics


Distribution Statement : APPROVED FOR PUBLIC RELEASE