https://doi.org/10.1140/epjst/e2012-01587-1
Regular Article
Response of cork compounds subjected to impulsive blast loads
An experimental and numerical approach
1 Dept. Mechanical Engineering, Universidade de Aveiro, 3810–193 Aveiro, Portugal
2 Dept. Weapon Systems & Ballistics, Royal Military Academy, 1000 Brussels, Belgium
3 Civil and Material Engineering Department (COBO) Polytechnic Faculty – Royal Military Academy, 1000 Brussels, Belgium
a e-mail: jsm@ua.pt
Received:
15
November
2011
Revised:
13
March
2012
Published online:
7
May
2012
The experimental characterisation of the dynamic (blast) behaviour of micro-agglomerated cork is presented. A 4-cable ballistic pendulum system was used to measure the transmitted impulse to a target subjected to a shock-wave originated from the detonation of an explosive. The displacement of the pendulum and the transmitted impulse were measured and the coefficient of restitution of the whole system when the cork compound is used was determined. A numerical study of the problem using the finite element method gave very good correlation with the experimental analysis leading to the development of a material constitutive model suited to the dynamic behaviour of these cork compounds in such solicitations.
© EDP Sciences, Springer-Verlag, 2012
