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Composite Materials: Fatigue and Fracture, Second Volume
ASTM Selected Technical Papers
Composite Materials: Fatigue and Fracture, Second Volume
By
PA Lagace
PA Lagace
1
Associate Professor of Aeronautics and Astronautics
,
Technology Laboratory for Advanced Composites, Massachusetts Institute of Technology
;
symposium chairman and editor
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ISBN-10:
0-8031-1190-8
ISBN:
978-0-8031-1190-5
No. of Pages:
428
DOI:
https://doi.org/10.1520/STP1012-EB
Publisher:
ASTM International
Publication date:
1989
eBook Chapter

Mode I and Mode II Delamination of Thermosetting and Thermoplastic Composites

By
YJ Prel
YJ Prel
1
Engineer
,
Centre National ďEtudes Spatiales
,
Evry,
France
.
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,
P Davies
P Davies
2
Researcher
,
Ecole Polytechnique Fédérale de Lausanne
,
Switzerland
.
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,
ML Benzeggagh
ML Benzeggagh
3
Lecturer
, Division Polymères et Composites,
Université de Technologie de Compiègne
, BP 649,
60206 Compiègne,
France
.
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,
FX de Charentenay
FX de Charentenay
4
Research director
,
Peugeot S.A.
,
Velizy,
France
.
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Doi:
https://doi.org/10.1520/STP10419S
Page Count:
19
  • Published:
    1989

A study of the delamination behavior of three classes of composite material is described: glass/epoxy, graphite/epoxy, and graphite/PEEK (polyetheretherketone). Mode I loading was applied to double cantilever beam (DCB) specimens of two thicknesses, while three different types of mode II specimen were tested: end-notched flexure (ENF), end-notched cantilever beam (ENCB), and cantilever beam enclosed notch (CBEN). The latter was developed specifically for this study and is described in detail. A mixed mode specimen is also described. Results from both static and fatigue tests are discussed in terms of fracture mechanics values.

Keywords:
composite materials, delamination, mode I, mode II, mixed mode, glass/epoxy, graphite/epoxy, graphite/PEEK, unidirectional

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