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 :

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

Distribution Statement : APPROVED FOR PUBLIC RELEASE