Dynamic and static performance of composite T-joints
conference paper
This paper reports on a series of tensile pull off tests on Composite T-joints as part of
a comprehensive test programme undertaken under the auspices of the EUCLID
RTP3.21 project on “Survivability, Durability and Performance of Naval Composite
Structures”. The tests have been developed to evaluate joints suitable for use with
large composite superstructures i.e. a hangar on a frigate type warship.
To assess the performance of these joints under quasi-static and dynamic loading,
test procedures have been developed using both shock table facilities and
conventional servo-hydraulic test machines. The test procedures are fully
complementary to ensure that test results can be directly compared.
Test results established that the joint failed within the interface between the base
sandwich laminate and the joint overlaminate. As joint assembly is a secondary
process this is to be anticipated. Both the dynamic and quasi-static test results
showed similar tensile loading performances; for quasi-static testing core shear
failure immediately preceded joint failure, whereas no core failure was noted for the
dynamic tests. These results suggest that the joint and base sandwich laminate
chosen for the EUCLID RTP3.21 project are well matched
a comprehensive test programme undertaken under the auspices of the EUCLID
RTP3.21 project on “Survivability, Durability and Performance of Naval Composite
Structures”. The tests have been developed to evaluate joints suitable for use with
large composite superstructures i.e. a hangar on a frigate type warship.
To assess the performance of these joints under quasi-static and dynamic loading,
test procedures have been developed using both shock table facilities and
conventional servo-hydraulic test machines. The test procedures are fully
complementary to ensure that test results can be directly compared.
Test results established that the joint failed within the interface between the base
sandwich laminate and the joint overlaminate. As joint assembly is a secondary
process this is to be anticipated. Both the dynamic and quasi-static test results
showed similar tensile loading performances; for quasi-static testing core shear
failure immediately preceded joint failure, whereas no core failure was noted for the
dynamic tests. These results suggest that the joint and base sandwich laminate
chosen for the EUCLID RTP3.21 project are well matched
TNO Identifier
330441
Source title
NATO AVT Symposium on Combat Survivability of Air, Sea and Land Vehicles, Aalborg, Denmark, 23-26 September
Pages
1-14
Files
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