Issue |
EPJ Web of Conferences
Volume 6, 2010
ICEM 14 – 14th International Conference on Experimental Mechanics
|
|
---|---|---|
Article Number | 42017 | |
Number of page(s) | 8 | |
Section | Fracture and Fatigue | |
DOI | https://doi.org/10.1051/epjconf/20100642017 | |
Published online | 10 June 2010 |
https://doi.org/10.1051/epjconf/20100642017
Fracture and strain rate behavior of airplane fuselage materials under blast loading
1
TNO-Defense Security and Safety, Rijswijk, The
Netherlands
2
TNO Built Environment and Geosciences,
Delft, The
Netherlands
a e-mail: jesus.mediavillavaras@tno.nl
The dynamic behavior of three commonly used airplane fuselage materials is investigated, namely of Al2024-T3, Glare-3 and CFRP. Dynamic tensile tests using a servo-hydraulic and a light weight shock testing machine (LSM) have been performed. The results showed no strain rate effect on Al2024-T3 and an increase in the failure strain and failure strength of Glare-3, but no stiffening. The LSM results on CFRP were inconclusive. Two types of fracture tests were carried out to determine the dynamic crack propagation behavior of these materials, using prestressed plates and pressurized barrels, both with the help of explosives. The prestressed plates proved to be not suitable, whereas the barrel tests were quite reliable, allowing to measure the crack speeds. The tougher, more ductile materials, Al2024-T3 and Glare-3, showed lower crack speeds than CFRP, which failed in a brittle manner.
© Owned by the authors, published by EDP Sciences, 2010
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