NDA@SZTAKI

On the impact of a rigid–plastic missile into rigid or elastic target

Laczák, Lili Eszter

Károlyi, György

Elsevier

2017

QC Physics / fizika

QC01 Mechanics / mechanika

TA Engineering (General). Civil engineering (General) / általános mérnöki tudományok

TH Building construction / mély-és magasépítés

TJ Mechanical engineering and machinery / gépészmérnöki tudományok

U1 Military Science (General) / hadtudomány általában

Here we carry out a systematic parametric study of a uniform cylindrical missile impacting rigid or elastic
structures. We give an analytical result for the impact force in case of rigid target. A new parameter, the damage
potential is introduced and it is shown that this single dimensionless combination of the parameters describes the
course of the impact in this simplest case. For elastic target structures, we also show numerically that the course
of the reaction force, the maximum target displacement and the duration of the impact depend primarily on the
same dimensionless parameter with a secondary effect of the missile to target mass ratio and the relative stiffness
of the target. The rigid target assumption is not always conservative with regard to the reaction force due to
target vibration. We find a resonant effect in the maximum target displacement as the function of the missile to
target mass ratio. The motivation of our work is rooted in the investigation of aircraft fuselage impact into robust
structures like the containment of a nuclear power plant.

angol

Article

PeerReviewed

info:eu-repo/semantics/article

text

http://real.mtak.hu/49931/1/accepted.pdf

Laczák, Lili Eszter and Károlyi, György (2017) On the impact of a rigid–plastic missile into rigid or elastic target. INTERNATIONAL JOURNAL OF NON-LINEAR MECHANICS, 91. pp. 1-7. ISSN 0020-7462

http://real.mtak.hu/49931/

http://www.sciencedirect.com/science/article/pii/S002074621...