Kounadis, ANNonlinear dynamic buckling of nonlinearly elastic, nondissipative or dissipative, multimass systems under step loading of infinite or finite duration is thoroughly discussed. Attention is restricted to discrete structural systems that under the same loading applied statically experience snapping or bifurcational instability associated with an unstable branching point lying either on a trivial or a nontrivial primary equilibrium path. Considering the stability of motion in the large the mechanism of dynamic instability and the nature of the dynamic critical point are properly investigated. Dynamic buckling criteria leading to exact dynamic buckling loads, as well as a simple static buckling criterion yielding lower bound buckling estimates of practical importance, are established. Finally, error estimates of the lower bound buckling loads obtained by the static buckling criterion are also assessed.http://hdl.handle.net/123456789/10495ISI:A1991FA441000162289290001-1452280engAMER INST AERONAUT ASTRONAUTAIAA journalMathematical Techniques - Differential EquationsDiscrete Dissipative SystemsNondissipative System Step LoadingStructural AnalysisNonlinear Dynamic BucklingLagrange's EquationsOne-Degree of Freedom SystemsNonlinear dynamic buckling of discrete dissipative or nondissipative systems under step loadingjournalArticle1991Δημοσίευση σε περιοδικόPublication in journalΑεροδιαστημική μηχανικήAerospace Engineeringisi - Engineering, Aerospace includes resources concerned with astronautics, aeronautics, aerospace, and aviation. Topics covered include the design and construction of aircraft, space vehicles, missiles, satellites, instrumentation, and power units, as well as the launch, flight, and guidance of crafts in the earth's atmosphere or in space. Resources in this category draw from many fields, including mechanics and mechanical engineering, automation, instrumentation, and materials science.Επιστημονικό άρθροScientific articleΕθνικό Μετσόβιο ΠολυτεχνείοGreek Aggregator OpenArchives.gr | National Documentation Centre (EKT)other