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Author:Kuutti, Juha
Title:Design of a projectile for impact testing
Publication type:Master's thesis
Publication year:2007
Pages:82 s. + app.      Language:   eng
Department/School:Konetekniikan osasto
Main subject:Lujuusoppi   (Kul-49)
Supervisor:Freund, Jouni
Instructor:Saarenheimo, Arja
OEVS:
Electronic archive copy is available via Aalto Thesis Database.
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Location:P1 Ark TKK  6416   | Archive
Keywords:missile
projectile
impact
impact loads
aircraft crash
Riera's method
scaling
experimental testing
finite element analysis
Abstract (eng):VTT Technical Research Centre of Finland has studied missile (projectile) impacts against various targets to provide data for the calibration and verification of impact models of a loading scenario where an aircraft impacts against a nuclear power plant.
Missiles used in the previous tests have been cylindrical aluminium and steel pipes.
The subject of this thesis is to develop a more structurally complex airplane-like missile.
The objective is to produce an impact loading transient with a changing loading area resembling full scale aircraft impact.

In the thesis studies concerning airplane impact are discussed, Riera's method of determining impact loads is presented and impact loads of an airplane are calculated against a rigid target.
Using dimensional analysis it is determined whether the missile structure can be designed scalable so that missile impact can be used to make assumptions of full scale impact.

The missile is designed and verified to be suitable for experimental testing.
Analytical impact calculations indicate that the impact force and area are in agreement with the objectives.
Similarity with full scale aircraft impact is not fully obtained.
Although the experimental results are not directly scalable, the missile will be useful in experimental impact testing against reinforced concrete walls.
The missile provides a good basis for further missile development
ED:2007-12-14
INSSI record number: 34964
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