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Surface Crack Analysis Applied to Impact Damage in a Thick Graphite-Epoxy Composite
| AUTHOR | Nasa, National Aeronautics and Space Adm |
| PUBLISHER | Independently Published (10/11/2018) |
| PRODUCT TYPE | Paperback (Paperback) |
Description
The residual tensile strength of a thick graphite/epoxy composite with impact damage was predicted using surface crack analysis. The damage was localized to a region directly beneath the impact site and extended only part way through the laminate. The damaged region contained broken fibers, and the locus of breaks in each layer resembled a crack perpendicular to the direction of the fibers. In some cases, the impacts broke fibers without making a visible crater. The impact damage was represented as a semi-elliptical surface crack with length and depth equal to that of the impact damage. The maximum length and depth of the damage were predicted with a stress analysis and a maximum shear stress criterion. The predictions and measurements of strength were in good agreement. Poe, C. C., Jr. and Harris, C. E. and Morris, D. H. Langley Research Center RTOP 506-43-11-04...
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Product Format
Product Details
ISBN-13:
9781728694351
ISBN-10:
1728694353
Binding:
Paperback or Softback (Trade Paperback (Us))
Content Language:
English
More Product Details
Page Count:
34
Carton Quantity:
120
Product Dimensions:
8.50 x 0.07 x 11.02 inches
Weight:
0.23 pound(s)
Country of Origin:
US
Subject Information
BISAC Categories
Science | Space Science - General
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publisher marketing
The residual tensile strength of a thick graphite/epoxy composite with impact damage was predicted using surface crack analysis. The damage was localized to a region directly beneath the impact site and extended only part way through the laminate. The damaged region contained broken fibers, and the locus of breaks in each layer resembled a crack perpendicular to the direction of the fibers. In some cases, the impacts broke fibers without making a visible crater. The impact damage was represented as a semi-elliptical surface crack with length and depth equal to that of the impact damage. The maximum length and depth of the damage were predicted with a stress analysis and a maximum shear stress criterion. The predictions and measurements of strength were in good agreement. Poe, C. C., Jr. and Harris, C. E. and Morris, D. H. Langley Research Center RTOP 506-43-11-04...
Show More