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ASTM Selected Technical Papers
Effects of Defects in Composite Materials
By
DJ Wilkins
DJ Wilkins
1
Engineering staff specialist
, General Dynamics
, Fort Worth, Texas
; symposium chairman
.
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ISBN-10:
0-8031-0218-6
ISBN:
978-0-8031-0218-7
No. of Pages:
281
Publisher:
ASTM International
Publication date:
1984
eBook Chapter
Characterizing the Effect of Delamination Defect by Mode I Delamination Test
By
FX de Charentenay
,
FX de Charentenay
1Groupe “Polymères et Composites,” Départment de Génie Mécanique,
Université de Technologie de Compiègne
, B. P. 233, 60206 Compiegne,
.France
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JM Harry
,
JM Harry
1Groupe “Polymères et Composites,” Départment de Génie Mécanique,
Université de Technologie de Compiègne
, B. P. 233, 60206 Compiegne,
.France
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YJ Prel
,
YJ Prel
1Groupe “Polymères et Composites,” Départment de Génie Mécanique,
Université de Technologie de Compiègne
, B. P. 233, 60206 Compiegne,
.France
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ML Benzeggagh
ML Benzeggagh
1Groupe “Polymères et Composites,” Départment de Génie Mécanique,
Université de Technologie de Compiègne
, B. P. 233, 60206 Compiegne,
.France
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Page Count:
20
-
Published:1984
Citation
de Charentenay, F, Harry, J, Prel, Y, & Benzeggagh, M. "Characterizing the Effect of Delamination Defect by Mode I Delamination Test." Effects of Defects in Composite Materials. Ed. Wilkins, D. 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959 : ASTM International, 1984.
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Delamination is an important step in the fracture of laminates. In order to characterize this phenomenon, tension opening (Mode I) tests have been carried out. Monitoring by acoustic emission allows the determination of an initiation fracture energy that is characteristic of the material bonding. Analysis by fracture mechanics of the delamination propagation shows that the resistance curves description is a very useful presentation of the delamination behavior. Results of experiments on glass-polyester, carbon-epoxy, and kevlar-epoxy are presented. The influence of moisture content on the R-curves of carbon-epoxy laminates is included.
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