Open Hole and Post-Impact Compression Fatigue of Stitched and Unstitched Carbon/Epoxy Composites

Released on by National Aeronautics and Space Administration (NASA)
preview-18

  • Open Hole and Post-Impact Compression Fatigue of Stitched and Unstitched Carbon/Epoxy Composites Book Detail

  • Author : National Aeronautics and Space Administration (NASA)
  • Release Date : 2018-07-09
  • Publisher : Createspace Independent Publishing Platform
  • Genre :
  • Pages : 44
  • ISBN 13 : 9781722461010
  • File Size : 88,88 MB
DOWNLOAD BOOK

Open Hole and Post-Impact Compression Fatigue of Stitched and Unstitched Carbon/Epoxy Composites by National Aeronautics and Space Administration (NASA) PDF Summary

Book Description: The performance is studied of a stitched uniweave fabric composite and that of a toughened tape composite. The effects of stitching on compression fatigue life are addressed. Post impact compression fatigue and open hole fatigue tests were run on an AS4/3501-6 uniweave with stitching and a toughened IM7/8551-7 tape without stitching. Stitching was found to increase the thickness and consequently the weight of the composite material. The two materials were compared on an equal carbon content basis as well as on an equal weight basis. The excess thickness in the stitched uniweave composite was responsible for the lower fatigue life, on an equal carbon basis, compared to the toughened resin tape composite. Comparison of fatigue lives on an equal carbon content basis indicated that puncture or crimp type damage from stitching has very little effect on compression failure. Post impact fatigue test showed that although the damage area in the stitched uniweave composite was twice that of the toughened tape composite, the fatigue lives of the stitched composite were significantly longer than those of the toughened composite. Thus, it appears that the increase in thickness from stitching is much more of a penalty than crimped fibers or puncture type damage from stitching. Portanova, M. A. and Poe, C. C., Jr. and Whitcomb, John D. Langley Research Center RTOP 505-63-01-05...

Disclaimer: www.yourbookbest.com does not own Open Hole and Post-Impact Compression Fatigue of Stitched and Unstitched Carbon/Epoxy Composites books pdf, neither created or scanned. We just provide the link that is already available on the internet, public domain and in Google Drive. If any way it violates the law or has any issues, then kindly mail us via contact us page to request the removal of the link.

Composite Materials

Composite Materials

File Size : 68,68 MB
Total View : 8213 Views
DOWNLOAD

Annotation In papers presented at the Tenth ASTM Conference on Composite Materials, held in San Francisco, April 1990, important composite materials technical i

Scientific and Technical Aerospace Reports

Scientific and Technical Aerospace Reports

File Size : 41,41 MB
Total View : 3785 Views
DOWNLOAD

Lists citations with abstracts for aerospace related reports obtained from world wide sources and announces documents that have recently been entered into the N