AN ASYMPTOTIC-NUMERICAL ANALYSIS FOR THE LOWER BOUND DYNAMIC BUCKLING ESTIMATES

(整期优先)网络出版时间:1997-02-12
/ 1
Afiniteelementasymptoticanalysisfordeterminingthelowerbounddynamicbucklingestimatesofimperfection-sensitivestructuresundersteploadofinfinitedurationispresented.Thelowerbounddynamicbucklingloadsandthecorrespondingdisplacementsaresoughtintheformofasymptoticexpansionsbasedonthestaticstabilitycriterionandtheycanbedeterminedbysolvingnumerically(FEM)severallinearproblemswithasinglenonsingularsub-stiffnessmatrix.